Maria Cristina Oliveira

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• Doctor
• Professor (Full) at Universidade de Rio Verde

Phytogenic and Phytochemical as Alternative Feed Additives for Animal Production explores the use of plant-derived compounds as innovative feed additives to enhance animal health and productivity. With growing concerns over antibiotic resistance and the ban on antibiotics as growth promoters, this book highlights phytogenic feed additives (PFAs) su...

Phytogenic and Phytochemical as Alternative Feed Additives for Animal Production explores the use of plant-derived compounds as innovative feed additives to enhance animal health and productivity. With growing concerns over antibiotic resistance and the ban on antibiotics as growth promoters, this book highlights phytogenic feed additives (PFAs) su...

Phytogenic and Phytochemical as Alternative Feed Additives for Animal Production explores the use of plant-derived compounds as innovative feed additives to enhance animal health and productivity. With growing concerns over antibiotic resistance and the ban on antibiotics as growth promoters, this book highlights phytogenic feed additives (PFAs) su...

Phytogenic and Phytochemical as Alternative Feed Additives for Animal Production explores the use of plant-derived compounds as innovative feed additives to enhance animal health and productivity. With growing concerns over antibiotic resistance and the ban on antibiotics as growth promoters, this book highlights phytogenic feed additives (PFAs) su...

Phytogenic and Phytochemical as Alternative Feed Additives for Animal Production explores the use of plant-derived compounds as innovative feed additives to enhance animal health and productivity. With growing concerns over antibiotic resistance and the ban on antibiotics as growth promoters, this book highlights phytogenic feed additives (PFAs) su...

Phytogenic and Phytochemical as Alternative Feed Additives for Animal Production explores the use of plant-derived compounds as innovative feed additives to enhance animal health and productivity. With growing concerns over antibiotic resistance and the ban on antibiotics as growth promoters, this book highlights phytogenic feed additives (PFAs) su...

Redox homeostasis is a pivotal biological process that guarantees the balance between two molecules—antioxidants and reactive oxygen species (ROS). Normally, a moderate production of ROS is required for the maintenance of many biological processes in the cell; however, the excessive accumulation of ROS, which results in oxidative stress, may evoke...

The present study evaluated the effects of dietary inclusion of spirulina on productive performance, nutrient utilization, and egg quality of Japanese quails. One hundred twenty quails were included in a completely randomized design with four treatments and five replicates. Treatments consisted of a control diet and three diets containing 0.3, 0.6,...

Protozoa of the genus Cryptosporidium are parasites capable of causing animal rearing losses due to diarrhea outbreaks. This review aimed to determine the prevalence of and potential risk factors for bovine cryptosporidiosis in Brazil. The search was carried out in the databases Science Direct, Scopus, Web of Science, and SciELO. The search strateg...

Toxoplasmosis is a zoonosis of cosmopolitan distribution responsible for the infection of different mammals including humans. In small ruminants, this parasitosis is responsible for the emergence of reproductive alterations that lead to considerable economic losses. Despite the importance of the subject in goats, until now there is a lack of data o...

Global production of the two major poultry products, meat and eggs, has increased quickly. This, in turn, indicates both the relatively low cost and the customers' desire for these secure and high-quality products. Natural feed additives have become increasingly popular to preserve and enhance the health and productivity of poultry and livestock. W...

Poultry production significantly contributes to bridging the food gap worldwide. Several nations have limited the usage of antibiotic growth promotors due to bacterial resistance to antibiotics and the occurrence of residual antibiotics in the edible tissues of birds. The world is now turning to using natural alternatives to increase poultry produc...

Background: litter provides comfort to animals while improving productive performance and carcass quality. Objective: this study evaluated broiler performance, incidence of contact dermatitis, and quality of poultry litter of wood shavings and/or sugarcane bagasse (SB) after five consecutive flocks. Methods: two thousand birds were raised in five c...

O objetivo desta revisão foi determinar os potenciais fatores de risco para a ocorrência de criptosporidiose bovina no Brasil. Foi adotado como procedimento metodológico a revisão sistemática. A busca foi feita nas bases de dados Science Direct, Scopus, Web of Science e Scielo. Como estratégia de busca foram usados os descritores Cryptosporidium, c...

Protozoários do gênero Cryptosporidium são parasitas de uma ampla variedade de vertebrados, capazes de causar perdas econômicas consideráveis na criação animal devido à ocorrência de surtos de diarreia. O objetivo desta revisão foi determinar a prevalência, as espécies causadoras e métodos de diagnóstico da criptosporidiose bovina no Brasil. Foi ad...

Protozoários do gênero Cryptosporidium são coccídeos intracelu-lares obrigatórios de distribuição cosmopolita que parasitam o epitélio gas-trointestinal de uma ampla variedade de vertebrados. Uma revisão siste-mática de casos observacionais foi realizada para determinar a prevalência global das espécies que causam a criptosporidiose em humanos em d...

Protozoários do gênero Cryptosporidium ocasionaram surtos transmitidos pela água e por alimentos nos países estudados. Uma revisão sistemática de casos observacionais foi realizada para determinar os po-tenciais fatores de risco para a criptosporidiose humana no mundo. Artigos científicos foram identificados por meio de busca sistemática nas bases...

COVID-19 pandemic influenced the environment, animal health, and food security. Due to reduced human mobility, the air and water quality increased. Other environmental consequences were the personal protective types of equipment and their haphazard disposal. Atmospheric pollution could be a cofactor leading to an increased COVID-19 mortality rate....

Este estudo foi conduzido para verificar o efeito do extrato aquoso e da pomada à base de casca de Caryocar brasiliense sobre a retração de feridas em coelhos. Foram utilizados 12 coelhos Nova Zelândia Branco divididos em dois grupos e quatro lesões foram produzidas na região dorsal de cada animal. As lesões à direita foram tratadas com extrato aqu...

Introdução: O HIV é um vírus do gênero Lentivirus e da família Retroviridae que ataca o sistema de defesa do corpo humano e o torna frágil e suscetível a desenvolver várias doenças, caracterizando a síndrome da imunodeficiência adquirida (SIDA ou em inglês AIDS). Objetivos: Este estudo foi realizado para quantificar o número de casos e analisar o p...

Ao final de 2019, um novo coronavírus foi identificado na China, em pacientes com pneumonia severa. Desde sua descoberta, o SARS-CoV-2 se disseminou rapidamente por todo o mundo. Esta revisão de literatura foi realizada para definir o papel de cães e gatos na epidemiologia do SARS-CoV-2. O coronavírus pertence à família Coronaviridae, gêneros Betac...

Although chickens are not susceptible to SARS-CoV-2, several coronavirus disease outbreaks have been described concerning poultry processing facilities in different countries. The COVID-19 pandemic and the developed strain caused 2nd, 3rd, and recent Indian strain waves of epidemics that have led to unexpected consequences, such as forced reduction...

This study evaluated the effect of turmeric powder (TP) on the productivity and egg quality of quails and on the quality of eggs stored at different temperatures for 7 or 14 d. Quails were distributed in three treatments that consisted of sorghum-based diets with 1.5% and 3% TP or zero TP inclusion, with five replicates for 84 d. Eggs were stored a...

In this study, we evaluated the effects of dietary inclusion of ethanolic extract of green propolis (EEGP) on productivity, egg quality, nutrient utilization, and duodenal morphology of 120 Japanese laying quail. The quail were randomly distributed into five treatment groups: one group with no EEGP in the diet (control diet) and four groups with in...

This study was conducted to evaluate the effects of paprika and marigold extracts on the productivity of Japanese quails, quality and sensorial analysis of eggs. Japanese quails were allocated in a completely randomized design and factorial arrangement 2 × 2 + 1, and four replicates. Diets were formulated based on: 1) corn (control), and 2) sorghum...

This study aimed to evaluate the effects of bee pollen (BP) on the performance of laying Japanese quails and egg quality. A total of 60 quails were used in a completely randomized experimental design with four treatments (0%, 0.5%, 1%, and 1.5% BP inclusion in diets) and five replicates. At the end of the study, productive performance and egg quali...

Background: Residual annatto seed meal (RASM) is a byproduct after extraction of bixin in the cosmetic industry and may be used in animal diets. Objective: Two experiments were carried out to determine the nutritive value and effect of RASM inclusion levels in the diets of Japanese quails. Methods: For the digestibility experiment, 160 Japanese q...

Distilled fatty acids (DFA) are by-products of edible oil refining and may be used in animal nutrition. This study was carried out to evaluate the effect of DFA and vitamin E (VE) and/or selenium (Se) on digestibility, performance, and meat quality of male Japanese quails. Seven hundred and twenty male quails were used in a completely randomized de...

The objective of this work was to evaluate the effect of a dietary supplementation with soy lecithin (SL) on the productive performance and blood constituents of rabbit females and their offsprings. A total of 40 rabbits does were distributed into four treatments: control group, no dietary SL inclusion; and three groups with 0.5, 1.0, and 1.5% SL i...

Background: Agricultural practices increase groundwater pollution from nitrate. High nitrate intake could negatively affect animal growth. Objective: To determine the effects of different levels of nitrate in drinking water on digestive, liver, and kidney functions, and on water and feed intake, and to determine the ability of vitamin C, vitamin E...

Background: Feeding ionophores to sheep is intended for improving feed efficiency. Functional oils (FO) are an alternative to the use of ionophores. Objective: To evaluate the effect of feeding FO to sheep on blood parameters and fecal bacteria. Methods: Five sheep were used in a Latin square design with five treatments: 190, 285, 380, 570, and 6...

This study was carried out to evaluate the productive performance; characteristics of carcass, bone, and intestinal mucosa; and serum biochemical profiles of growing rabbits supplemented with green propolis extract (GPE). One hundred rabbits were used in a completely randomized design, consisting of five treatments and five replicates, with four an...

This study was performed to determine the effect of different levels of soya lecithin (SL) added to the diets for growing V-line rabbits in the winter and summer seasons. One hundred sixty 35 day old rabbits were used in two experiments, one was conducted in the winter and the other in the summer (each for 49 days). Animals were randomly assigned t...

Soy lecithin (SL) is widely used in the food industry as an emulsifier, antioxidant, and wetting agent and due to its composition and properties, it might be used as a nutritional supplement for animals. To this purpose, forty V-line rabbit does were used to estimate the effect of dietary supplementation of SL on productive and reproductive respons...

This study was conducted to evaluate the effect of functional oils (FO) as an alternative to sodium monensin (SM) to sheep through feeding on blood parameters. Five sheep were used in a Latin square design with five treatments × five periods, in a factorial arrangement that included two levels of SM levels (0 and 12 mg/ton) and two levels of FO (95...

Background: The material placed into the nest should provide comfort to both does and their kits. Objective: To evaluate the effect of different nesting materials on rabbit doe performance and nest building. Methods: Thirty primiparous rabbit does were randomized allotted in a block design with three treatments and ten replicates each. The treatm...

Background: Liquid vinasse (LV) has probiotic properties and low pH. It is fed to animals as a solution to the disposal problem of this by-product. Objective: To evaluate the effects of increasing dietary levels of LV on growing performance, egg quality and economic viability for Japanese quails. Methods: One hundred sixty Japanese quails were in...

Egg quality reflects the physical and chemical status of the egg. Turmeric may improve the egg quality for increasing the functions of liver and reproductive organs. This study was carried out to evaluate the effect of dietary supplementation with turmeric powder (TP) on the quality of eggs stored at ambient temperature or under refrigeration for 7...

Yolk color is an important quality factor, followed by freshness and eggshell quality. Artificial pigments are added to food and beverages to confer them color. From the health point of view, artificial pigments are not recommended because several studies point to acute or chronic side effects of these additives. This study was carried out to evalu...

Background: Quality of drinking water is an issue that imposes limits on animal farming. Improving water quality can be a solution to animal farming and to the enhancement of animal production in areas with limited water supplies. Objective: To evaluate the effect of water quality and magnetized water on productivity and blood parameters of Egyptia...

This study was performed to evaluate the effect of the inclusion of paprika and marigold extracts in sorghum-based rations on the productivity and egg quality of laying hens. One hundred sixty laying hens were distributed in a completely randomized design in five treatments and in a factorial arrangement (2 × 2 + 1), one control ration based on cor...

Avian pathogenic Escherichia coli (APEC) strains are isolated from lesions of poultry presenting colibacillosis, which is a disease that causes either systemic or localized clinical signs. Such strains share many characteristics with E. coli strains that cause extra-intestinal illness in humans. There is not a consensus on how to define the APEC pa...

This study was carried out to evaluate the effects of pequi peel flour (PPF) in the diet of laying Japanese quails on their productive performance and on the quality and cost of the eggs produced. A total of 160 quail (Coturnix coturnix japonica) were distributed in a completely randomized design with four treatments and five replicates with eight...

Background: broilers spend most of their lives in contact with litter; litter quality can affect their health and performance. Objective: the effects of litter treatment on performance and carcass lesions were evaluated in five consecutive flocks with 640 male broilers each. Methods: a completely randomized model was used comprising eight treatment...

Bee pollen (BP) can be a nutritional complement for animals because it improves nutrient use efficiency, increasing their absorption and accelerating animal growth, improving their productive performance. The effect of BP in broiler diet was assessed on digestibility, performance, intestinal mucosa and litter quality. To assess the digestibility, 2...

Background: litter provides comfort to animals while improving productive performance and carcass quality. Objective: this study evaluated broiler performance, incidence of contact dermatitis, and quality of poultry litter of wood shavings and/or sugarcane bagasse (SB) after five consecutive focks. Methods: two thousand birds were raised in five co...

Bee polle n (BP) can be a nutritional complement for animals because it improves nutrient use efficiency, increasing their absorption and accelerating animal growth, improving their productive performance. The effect of BP in broiler diet was assessed on digestibility, pe rformance, intestinal mucosa and litter quality. To assess the dige stibility...

This research was carried out in order to determine the effects of the weaning at 28 or 35 days of age or the split weaning, at 28 and 35 days of age, on the productive performance of growing rabbits. Eighty White New Zealand rabbits were used, weaned at 28 and 35 days of age, distributed in a randomized blocks design with four treatments and five...

In total, 392 male broilers were randomly distributed in a factorial arrangement of 2 × 4, with two commercial broiler strains (Arbor Acres (AA) and Hubbard (Hub)) and four (NRC, Degussa, CVB, and strain guides) different feeding regimens (FR), totaling eight treatments and seven replicates, with seven broilers in each one. The following parameters...

Effect of annatto seed meal on productivity of laying Japanese quails Abstract: The experiment was carried out to determine the effect of the annatto seed meal on the productivity of laying Japanese quails. One hundred sixty Japanese quail were housed in metal cages for 84 days. The experimental design was completely randomized with six treatments...

Egg quality of quails fed diets containing bee pollen and stored at different temperatures Abstract: This study was carried out to evaluate the egg quality of quails fed diets containing bee pollen and stored at room temperature and in cold storage. One hundred sixty eggs were used, obtained from quails fed diets containing bee pollen. Forty eggs...

Quality of quail eggs fed diets containing bran annatto Abstract: This study was carried out to evaluate the egg quality of quails fed diets containing annatto seed meal. One hundred sixty Japanese quails were used in a completely randomized design with six treatments and four replicates. The treatments consisted of a control ration based on corn...

This study was carried out to evaluate the effect of bee pollen (BP) levels on the IgG and IgM titers, weight of lymphoid organs, and on the tibia morphometric measures and mineralization in broilers at 21 and 42 days of age. Four hundred birds were used in an entirely randomized design with four treatments (0, 0.5, 1 and 1.5% of BP feed inclusion)...

It was evaluated the effects of bee pollen (BP) on the doe and kits productivity and on the carcass and organs of the rabbits. Twenty White New Zealand does and their kits were used in a randomized block design, with four treatments and five blocks, in a factorial arrangement 2 × 2 with two supplementation levels for the doe and for the kits after...

AbstrAct The aim of this study was to evaluate the performance, tibial density and mineral content, Na, K ,and Cl serum levels, and dry matter content of the litter of broilers fed diets with different levels of dietary electrolyte balances. Two experiments were carried out: during the starter phase (7 to 21 days of age, 960 broilers) and during th...

This experiment was carried out to evaluate the effect of feed restriction on internal organs with respect to their weight and size, and the development of the intestinal mucosa of growing rabbits. Sixty 33-day-old New Zealand White rabbits were used in a randomized block with four treatments and five blocks. The treatments consisted of ad libitum...

The aim of this study was to evaluate the performance, tibial density and mineral content, Na, K, and Cl serum levels, and dry matter content of the litter of broilers fed diets with different levels of dietary electrolyte balances. Two experiments were carried out: during the starter phase (7 to 21 days of age, 960 broilers) and during the growe p...

The effects of liquid vinasse (LV) in the diet for growing rabbits on performance, carcass yield and intestinal morphometry were assessed. Eighty New Zealand white rabbits were used in a randomized block design with five treatments (LV inclusion at 0, 25, 50, 75 and 100 g/kg diet) and four replications. There was no effect of the treatment on final...

The experiment evaluated the effect of different calcium (Ca) levels in pre-laying and laying diets on the performance and egg quality of laying hens. Two hundred and fifty-six 16-week-old Brown Hisex pullets were housed in a conventional shed. The experiment had a completely randomized design with 4 × 2 factorial arrangement (four calcium levels -...

This study was carried out to evaluate the effect of bee pollen (BP) levels on the IgG and IgM titers, weight of lymphoid organs, and on the tibia morphometric measures and mineralization in broilers at 21 and 42 days of age. Four hundred birds were used in an entirely randomized design with four treatments (0, 0.5, 1 and 1.5% of BP feed inclusion)...

This experiment assessed the effect of feed restriction in rabbits on performance and economic viability of the activity. Sixty New Zealand White rabbits, weaned at 33 days and slaughtered at 81 days of age, were used. The design was of randomized blocks with four treatments and five replications. The treatments were, as follows: 1 -free feeding, 2...

The objective was evaluate the effects of the split suckling at the six first hours after the birth, on the weight at weaning and at 60 days of age and on the serum IgG rate, in piglets from sows of different parturition order. Thirty three sows were used in a completely randomized design and 2 × 3 factorial arrangement: two post-birth management p...

http://dx.doi.org/10.5007/2175-7925.2009v22n2p181 Foi avaliada a qualidade nutricional de rações secas para cães adultos e verificou-se se as informações nos rótulos estavam de acordo com a legislação e com as análises laboratoriais e se o consumo sugerido supria as exigências nutricionais de cães adultos. Foram adquiridas e analisadas amostras de...

It was evaluated the effects of poultry litter treatment on moisture content, pH, density and volatilized ammonia for five consecutive flocks of broiler chicken breeding. It was used 640 birds per flock as a complete randomized design with eight treatments and four replicates. The treatments were the following: 1 - non-treated litter; 2 - litter su...

http://dx.doi.org/10.5007/2175-7925.2010v23n1p203 Avaliou-se o efeito do balanço eletrolítico dietético (BED) sobre parâmetros ósseos e da cama de frangos. Foram utilizadas 960 aves de 7 a 21 dias e 816 aves de 22 a 38 dias de idade, no primeiro e segundo experimentos, respectivamente, distribuídas em delineamento inteiramente ao acaso, com quatro...

Avaliou-se o efeito de níveis de fósforo não-fítico (FNF) e fitase sobre a morfometria e adensidade de tíbia de frangos. Foram utilizadas 1200 aves em delineamento inteiramentecasualizado em arranjo fatorial 4 x 3 (níveis de FNF x níveis de fitase), com quatrorepetições. Os níveis de FNF, em cada fase, foram 0,45; 0,37; 0,29 e 0,21% na faseinicial;...

Morphometry of the small intestine from broilers treated with diets added of mannan oligosaccha- rides and enzymatic complex. The effects of mannan oligosaccharides (MOS) and enzimatic complex (EC) on the morphometry of the small intestine wall in broilers were studied. Seven hundred and fi fty birds were used in a completely randomized design and...

The effects of dietary electrolyte balance (DEB) on the femurs and litter of broilers were evaluated. Nine hundred and sixty birds from 7 to 21 days of age and eight hundred and sixteen birds from 22 to 38 days of age were used in the first and second experiments, respectively, distributed in a completely randomized design with four treatments (DEB...

Resumo Esta revisão de literatura foi realizada para investigar o perfil do consumidor de produtos de origem animal (POA) e os fatores que influenciam a compra destes produtos. Os resultados indicaram que o principal tipo de varejo onde ocorre a compra dos POA é o supermercado. Dentre os entrevistados, a maioria disse não ter nenhuma restrição quan...

Mineral levels, weight, morphometry, breaking resistance and density of tibia from broilers fed on diets, supplemented or not with mannan oligosaccharides (MOS) and/or enzymes, were evaluated. Seven hundred and fifty birds were used in a completely randomized design and factorial arrangement: 2 x 2 + 1 – two MOS levels (0 and 0.1%/0.05%, from 1 to...

Dois experimentos foram conduzidos para determinar a composição química, os valores de energia e os coeficientes de digestibilidade dos aminoácidos, do farelo de arroz integral (FAI) e da quirera de arroz (QA). No primeiro estudo, foram utilizadas 144 aves, com 21 dias de idade, machos, linhagem Cobb, que tiveram suas excretas totalmente coletadas...

The effects of calcium levels and diet supplementation with mannan oligosaccharides (MOS) on the performance and economic viability of laying quails were evaluated. Two hundred quails were used in a randomized complete design and 2 × 2 + 1 factorial arrangement. The treatments were two calcium levels (2.2 and 1.9%), two MOS levels (0 and 0.1%) and...

Two experiments were conducted to determine the chemical composition, energy and the digestibility coefficients of the amino acids of the whole rice meal (WRM) and broken rice (BR). In the first trial, one hundred forty four broilers, 21 days of age, male, of Cobb strain had their excreta totally collected in order to determine the apparent metabol...

Two experiments were conducted to determine the chemical composition, energy and the digestibility coefficients of the amino acids of the whole rice meal (WRM) and broken rice (BR). In the first trial, one hundred forty four broilers, 21 days of age, male, of Cobb strain had their excreta totally collected in order to determine the apparent metabol...

http://dx.doi.org/10.5007/2175-7925.2009v22n4p177 Foram avaliados os teores de minerais, o peso, a morfometria, a resistência à quebra e a densidade tibiais (epífises proximal e distal, diáfise e densidade média) de frangos alimentados com dietas suplementadas ou não com mananoligossacarídeos (MOS) e/ou enzimas. Foram utilizadas 50 aves em delinea...

Phytase in broiler diets with reduced nonphytate phosphorus levels. This work evaluated the inclusion of phytase in diets with reduced nonphytate phosphorus (NPP) levels in relation to the performance and carcass yield of broilers and litter characteristics. The experimental design was completely randomized in a 2 x 3 factorial arrangement – two ph...

The effect of diets with mannan oligosaccharides (MOS) and enzymatic complex (EC) on performance, intestinal morphology and litter quality of 42-day-old broilers was evaluated. Seven hundred and fifty birds were used in a completely randomized design and 2 × 2 +1 factorial arrangement, with two MOS levels (0 and 0.1% from 1 to 21 days of age and 0....

The effect of diets with mannan oligosaccharides (MOS) and enzymatic complex (EC) on performance, intestinal morphology and litter quality of 42-day-old broilers was evaluated. Seven hundred and fifty birds were used in a completely randomized design and 2 × 2 +1 factorial arrangement, with two MOS levels (0 and 0.1% from 1 to 21 days of age and 0....

Three trials were carried out to evaluate the performance and carcass characteristics of broiler chickens raised on new or reused litter until four cycles and consuming diets with or without probiotic. In each trial, there were eight hundred one-day-old male Ross broiler chicks that were placed in 20 pens with constant population density of 10 bird...

This experiment was carried out to evaluate the effect of nonphytate phosphorus (NPP) and phytase levels on the weight, morphometry and weight/length index (WLI) of broiler femurs at 21 and 42 days of age. One thousand, two hundred chicks were allocated in a completely randomized design and 4 x 3 factorial arrangement (NPP x phytase levels), with f...

The effect of including mannanoligosaccharides (MOS) and/or enzymes in broiler diets on antibody titers against infectious bursal disease virus (IBDV) and Newcastle disease virus (NDV) was evaluated. A total of 750 broilers were distributed into a completely randomized experimental design in a factorial arrangement 2 x 2 + 1 with two levels of MOS...

Three trials were carried out to evaluate the performance and carcass characteristics of broiler chickens raised on new or reused litter until four cycles and consuming diets with or without probiotic. In each trial, there were eight hundred one-day-old male Ross broiler chicks that were placed in 20 pens with constant population density of 10 bird...

It was evaluated the effect of nonphytate phosphorus (NNP) and phytase on broiler tibia. One thousand and two hundred chicks were allocated in a completely randomized design and factorial arrangement 4 x 3 (NPP x phytase levels), with four replicates. NPP levels, at each phase, were 0.45, 0.37, 0.29 and 0.21% - initial, 0.41, 0.33, 0.25 and 0.17% -...

This study was aimed at evaluating the performance, carcass and non-carcass traits, and the intestinal and cecal pH of growing rabbits fed with diets containing a prebiotic and/or a probiotic to replace antibiotics as growth factor. Forty New Zealand White rabbits were distributed according to a completely randomized experimental design into five t...

Resumo O ambiente físico deve ser mantido em boas condições nas primeiras semanas de vida dos pintinhos para que as taxas de sobrevivência e o desempenho produtivo sejam máximos. A cama é, geralmente, reutilizada e deve-se sempre considerar a presença de bactérias oriundas do lote anterior. Em um galpão avícola há condições para a proliferação de b...

This study aimed to evaluate the effects of a probiotic and/or prebiotic additive on the nutrient digestibility of diets for growing rabbits. Twenty 50-day-old rabbits were used. A completely randomized experimental design, with � ve treatments and four replicates each, was used. The applied treatments (T) were the following: T1 = negative control...

This study evaluated the mineral content, density, weight, morphometry and breaking strength of the tibia in broilers fed diets containing phytase and reduced levels available phosphorus (aP). The experimental design was completely randomized with a 2 x 3 factorial scheme, with two phytase levels (0 and 25 FTU kg-1) and three aP levels (100, 85 and...

http://dx.doi.org/10.5007/2175-7925.2008v21n3p135 Estudou-se o efeito do mananoligossacarídeo (MOS) e de complexo enzimático (CE) sobre a morfometria do intestino delgado de frangos. Foram utilizadas 750 aves em delineamento inteiramente casualizado arranjo fatorial 2x2+1–dois níveis de MOS (0 e 0,1% de 1 a 21 dias e 0,05% de 22 a 42 dias de idade...

Resumo Objetivou-se avaliar a utilização de antibiótico, probiótico e prebiótico sobre a digestibilidade de nutrientes de dietas para coelhos em crescimento. Utilizaram-se 20 coelhos, com 50 dias de idade. O delineamento foi o inteiramente casualizado, com cinco tratamentos e quatro repetições. Os tratamentos (T) utilizados foram os seguintes: T 1...

The objective of this experiment was to evaluate the apparent digestibility of alfalfa hay and whole corn plant, pelleted, using growing rabbits. Eighteen New Zealand White rabbits were allocated in a completely randomized design with two treatments (alfalfa hay and whole corn plant) and nine replications. The animals were 50 day old, both sexes, a...

The effects of mannan oligosaccharides (MOS) and enzymatic complex (EC) on the morphometry and absorption surface of the small intestine wall in broilers were studied. Seven hundred and fifty birds were used in a completely randomized design and 2 x 2 + 1 factorial arrangement – two MOS levels (0 and 0.1% from 1 to 21 days and 0.05% from 22 to 42 d...

The article evaluated the effects of diets containing mannanoligosaccharides (MOS) and calcium (Ca) levels on quail eggs quality. Two hundred quails were used in an entirely randomized design and 2 x 2 + 1 factorial arrangement (Ca x MOS levels and a control diet), with four replicates. The treatments were levels of Ca (2.2 and 1.9%) and MOS (0 and...