Gleidson Giordano Pinto de Carvalho

Universidade Federal da Bahia, Bahia, Estado de Bahía, Brazil

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Publications (132)39.94 Total impact

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    ABSTRACT: This study aimed to evaluate sunflower cake feed in commercial cut yields and chemical and sensory attributes of goat meat. Thirty-two castrated male goats were distributed in four levels (0, 8, 16 and 24%) of sunflower cake supplementation. The animals were slaughtered and the carcasses were placed in a cold chamber and sectioned into five anatomical regions corresponding to commercial cuts. Samples of the Longissimus lumborum muscle were analyzed for chemical composition and sensory quality. The chemical composition and pH were not affected by the treatments. The smell, taste and ‘goatiness’ of the aroma and flavor of the meat were also unaffected by the treatments. The appearance, tenderness and juiciness of the meat differed by treatment. The highest level (24%) of sunflower cake increased meat tenderness; however, according to the tasters there was reduced softness, although none of the samples were rejected by the tasters. Sunflower cake can be added to the diet at a level of up to 16% without altering the quantitative and qualitative attributes of the meat.
    Animal Science Journal 01/2015; · 1.04 Impact Factor
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    ABSTRACT: The objective was to evaluate the ingestive behavior of crossbred heifers finished on a Brachiaria brizantha cv. Marandu pasture receiving four levels of glycerin in their supplementation. Thirty-six crossbred heifers with average initial weight of 264.83±3.83 kg and 20 months of age were distributed into a completely randomized design with four treatments and nine replications: control (0%), 4.82%, 10.12%, and 15.56% glycerin in the dry matter. The grazing time reduced linearly (p<0.05), whereas the time spent on activities like rumination, idleness, trough and total chewing time were quadratically affected (p<0.05). Bite rate and number of bites/day were quadratically influenced (p<0.05). The number of bites/swallowed cud and the number of bites/minute, however, increased linearly (p<0.05). Although the time spent on each cud and number of chews per cud were not affected (p>0.05). The number of rumination periods reduced linearly (p<0.05), whereas the number of grazing, idle and trough periods, and the times per grazing, idle, rumination and trough periods were quadratically affected (p<0.05). The feed and rumination efficiencies of the dry matter, non-fibrous carbohydrates, pasture dry matter and concentrate were quadratically affected (p>0.05) whereas the feed efficiency of neutral detergent fiber reduced linearly (p<0.05). Addition of glycerin in substitution of corn in supplements for animals managed on pastures does not influenced feed intake, but reduces the grazing time and increases the idle time. The supplementation also improves feed and rumination efficiencies.
    Asian Australasian Journal of Animal Sciences 11/2014; 27(11):1584-92. · 0.64 Impact Factor
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    ABSTRACT: A rapid method for the detection and quantification of the adulteration of milk powder by the addition of whey was assessed by measuring glycomacropeptide protein using mid-infrared spectroscopy (MIR). Fluid milk samples were dried and then spiked with different concentrations of GMP and whey. Calibration models were developed using multivariate techniques, from spectral data. For the principal component analysis and discriminant analysis, excellent percentages of correct classification were achieved in accordance with the increase in the proportion of whey samples. For partial least squares regression analysis, the correlation coefficient (r) and root mean square error of prediction (RMSEP) in the best model were 0.9885 and 1.17, respectively. The rapid analysis, low cost monitoring and high throughput number of samples tested per unit time indicate that MIR spectroscopy may hold potential as a rapid and reliable method for detecting milk powder frauds using cheese whey.
    Food Chemistry. 11/2014;
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    ABSTRACT: This study aimed to evaluate intake, digestibility, ingestive behaviour, and body weight variation in lambs fed mesquite pod meal (0, 30, 60 and 90%) in substitution of ground corn grains (as-fed basis) in pelleted diets. Twelve Santa Ines×Dorper lambs with average body weight of 25.0±1.8 kg were dis-tributed through three 4×4 Latin Squares consisting of four periods and four treat-ments. Diets consisted of 30% alfalfa hay and 70% concentrate. The experimental peri-od was 60 days, divided into 15-day periods. The intakes of dry matter (DM), total carbo-hydrates (TC) and total digestible nutrients (TDN) were not influenced (P>0.05) by the different levels of mesquite pod meal added in substitution of corn. The digestibility coefficients of DM, organic matter (OM), ether extracts (EE), neutral detergent fibre free of ash and protein (NDFap), TC and the TDN decreased linearly (P<0.05) as the level of mesquite pod meal in the diet was increased. Feed efficiency [g DM and neu-tral detergent fibre (NDF)/hour] was not influenced (P>0.05) by the mesquite pod meal levels; contrastingly, this feedstuff caused a reduction of 12.13 and 1.9 g in rumination efficiency (g DM and NDF/hour, respectively) for every percentage unit added. The average weight gain showed quadratic behaviour (P<0.05) as a result of the substitution level, and maximum weight gain was estimated at 275.9 g/day at the sub-stitution level of 47.5%.
    Italian Journal of Animal Science 07/2014; 13:473. · 0.79 Impact Factor
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    ABSTRACT: Lactoferrin is a protein that is present in cheese whey (a waste product from the dairy industry) and has several biological activities. However, its production from whey must have a high yield and low cost for industrial applications. As such, this study reports the use of polyacrylamide cryogel, loaded with Cu(2+) (through the bond with iminodiacetic acid (IDA)), as an adsorbent for the chromatographic process to capture lactoferrin whey. Ultrafiltered cheese whey was passed through the cryogel-IDA-Cu(2+) system. The eluates were subjected to analysis of total protein, SDS-PAGE and size exclusion chromatography. The results showed an axial dispersion coefficients, at different superficial velocities of liquid, in a range of 10(-6)-10(-5)m(2)/s. The cryogel demonstrated good hydraulic permeability (4.7086×10(-13)m(2)) and a porosity of approximately 78.2%. The IDA-Cu(2+) cryogel system was also able to capture lactoferrin in high purity.
    Food Chemistry 07/2014; 154:308-14. · 3.33 Impact Factor
  • Semina: Ciências Agrárias. 06/2014; 35(3):1475.
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    ABSTRACT: This study aimed to evaluate urea excretion, nitrogen balance and microbial protein synthesis in lactating goats fed with diets containing different protein sources in the concentrate (soybean meal, cottonseed meal, aerial part of cassava hay and leucaena hay). Four Alpine goats whose mean body weight was 42.6±6.1 kg at the beginning of the experiment, a mean lactation period of 94.0±9.0 days and a production of 1.7±0.4 kg of milk were distributed in a 4×4 Latin square with four periods of 15 days. Diets were formulated to be isonitrogenous, containing 103.0 g/kg of CP, 400 g/kg of Tifton 85 hay and 600 g/kg of concentrate. Diet containing cottonseed meal provided (p<0.05) increased excretion of urea and urea nitrogen in the urine (g/d and mg/kg of BW) when compared with leucaena hay. The diets affected the concentrations of urea nitrogen in plasma (p<0.05) and excretion of urea nitrogen in milk, being that soybean meal and cottonseed meal showed (p<0.05) higher than the average aerial part of the cassava hay. The use of diets with cottonseed meal as protein source in the concentrate in feeding of lactating goats provides greater nitrogen excretion in urine and negative nitrogen balance, while the concentrate with leucaena hay as a source of protein, provides greater ruminal microbial protein synthesis.
    Asian Australasian Journal of Animal Sciences 05/2014; 27(5):658-66. · 0.64 Impact Factor
  • Semina: Ciências Agrárias. 02/2014; 35(1):519.
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    ABSTRACT: The experiment was conducted to evaluate the ingestive behavior of lambs confined in individual and group stalls. We used thirty-four lambs in their growing phase, aged an average of three months, with mean initial live weight of 17.8±5.2 kg. They were allotted in a completely randomized design with 24 animals kept in individual stalls and 10 animals confined as a group. The experiment lasted for a total of 74 days, and the first 14 days were dedicated to the animals' adaption to the management, facilities and diets. The data collection period lasted 60 days, divided into three 20-d periods for the behavior evaluation. The animals were subjected to five days of visual observation during the experiment period, by the quantification of 24 h a day, with evaluations on the 15th day of each period and an interim evaluation consisting of two consecutive days on the 30th and 31st day of the experiment. The animals confined as a group consumed less (p<0.05) fiber. However, the animals confined individually spent less (p<0.05) time on feeding, rumination and chewing activities and longer in idleness. Therefore, the lower capacity of lambs confined in groups to select their food negatively affects their feeding behavior.
    Asian Australasian Journal of Animal Sciences 02/2014; 27(2):284-9. · 0.64 Impact Factor
  • Revista Brasileira de Zootecnia. 01/2014; 43(5):232-237.
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    ABSTRACT: The objective of this study was to assess the effect of substituting corn with soybean hulls on the ingestive behavior and nitrogen balance of Santa Ines lambs. A total of 25 lambs with an initial body weight of 20±2 kg at approximately six months of age, sheltered individually in stalls (1.10 m×1.0 m), considering an entirely casual experimental delineation. Soybean hulls were substituted for corn at 0, 250, 500, 750, and 1,000 g/kg of dry matter (DM). The time spent feeding, ruminating, masticating, and resting was not affected by the substitution of corn with soybean hulls. In fact, the feeding efficiency in g DM/h and the rumination efficiency in g DM/bolus increased linearly with soybean hull substitution in the feed. Although the nitrogen balance was not altered by the use of soybean hulls as a substitute for corn in the diets of Santa Ines lambs, the N ingested and N digested expressed in g/d, N retained as a percentage of that ingested, and N retained as a percentage of that digested displayed quadratic behavior. In conclusion, corn can be substituted with soybean hulls up to 1,000 g/kg of dry matter in the concentrate, without changing the ingestive behavior and nitrogen balance.
    Asian Australasian Journal of Animal Sciences 01/2014; 27(1):24-9. · 0.64 Impact Factor
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    ABSTRACT: Forty-five crossbred Dorper × Santa Inês lambs were selected to assess the effect of replacing soybean meal by groundnut cake metabolic profile and histopathological evaluation of the kidney and liver tissues. The animals were 5 months old on average with a 24.5 ± 5.3 kg initial body weight which were maintained fed in feedlot with groundnut cake (0, 25, 50, 75, and 100 %) as the replacement for soybean meal. Confinement lasted 84 days, and on the last day, the animals were fasted and slaughtered. A completely randomized design with five treatments and nine repetitions was used. Blood samples were collected from the jugular vein of each animal to evaluate the metabolic, protein, energy, and liver profiles of lambs. No effect was observed on protein, energy, or enzymatic profiles, which remained within the normal range for sheep. A histopathological examination was performed, and no deleterious effects from groundnut cake were observed in the liver or kidney tissues. Groundnut cake as a replacement for soybean meal can be used as an alternative protein source up to 100 % because it does not affect the metabolic, protein, and energy profiles or the liver and kidney functions of the growing sheep for slaughter.
    Tropical Animal Health and Production 12/2013; · 1.09 Impact Factor
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    ABSTRACT: The objective of this study was to evaluate intake, performance and nutrient digestibility of sheep supplemented with sugarcane ensiled with four levels of calcium oxide (0.0, 0.8, 1.6 and 2.4%) and urea (1.5%), on a natural matter basis. Twenty castrated Santa Ines lambs with 24.09 kg average weight were housed in individual 1.5 m2 pens, distributed in a completely randomized design. The diet supplied had a roughage:concentrate ratio of 70:30 and the experimental period lasted 77 days, of which 14 days were used for adaptation to the diet and three 21-day periods for data collection. No differences were observed for the average daily intake of dry matter, ether extract, neutral detergent fiber, neutral detergent fiber corrected for ash and protein, total carbohydrates, hemicellulose and total digestible nutrients. The treatment with urea showed differences for the intake (kg/day) of crude protein, acid detergent fiber and non-fibrous carbohydrates. There was no effect of diets on the digestibility of dry matter, ether extract, neutral detergent fiber, acid detergent fiber or total digestible nutrients, but there was a quadratic effect for total carbohydrates and increasing linear effect for non-fibrous carbohydrates. The calcium intake increased as the levels of calcium oxide in the sugarcane were elevated. The calcium:phosphorus ratio in the silage of calcium oxide was different from the silage with urea and control. No effect was observed for the performance characteristics of sheep. Sugarcane silages with calcium oxide levels of up to 2.4% or with urea do not improve the intake or weight gain of sheep.
    Revista Brasileira de Zootecnia 10/2013; 42(10):691-699. · 0.56 Impact Factor
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    Acta Scientiarum Animal Sciences 06/2013; 35(2):139-144.
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    ABSTRACT: Were evaluated the fractioning of carbohydrates and in situ dry matter (DM) and neutral detergent fiber (NDF) of sugarcane treated with calcium oxide (CaO). Levels 0, 0.75, 1.5, 2.25, 3.0, 3.75 and 4.5% CaO, and the material witness (sugarcane in nature) were tested for the assessment of fractioning of carbohydrates and levels 0, 1.5, 3.0 and 4.5% CaO for the evaluation of in situ DM and NDF. The levels of CaO were added in powder form, as a percentage of natural matter in sugarcane for 24 hours. The inclusion levels of CaO in sugarcane showed lower values for the total carbohydrates (TC) when compared with sugarcane in natura. A linear growth of the fractions A + B1 and B2 was observed, as well as a decrease in C fraction of sugarcane depending on the levels of CaO. The highest values of insoluble fraction potentially degradable in rumen and the lower values of NDF indigestible fraction (Ip) were observed in sugarcane with 3.0 and 4.5% CaO. The addition of 3.0 and 4.5% CaO to sugarcane decreased the indigestible carbohydrates fraction and promotes better rates of ruminal degradation of both DM and NDF.
    Arquivo Brasileiro de Medicina Veterinária e Zootecnia 04/2013; 65(2):537-546. · 0.27 Impact Factor
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    ABSTRACT: O estudo foi realizado com o objetivo de avaliar os efeitos da nutrição compensatória em novilhas suplementadas a pasto sobre o comportamento ingestivo. O experimento foi conduzido na fazenda Princesa do Mateiro, município de Ribeirão do Largo, Bahia. Foram utilizadas 20 novilhas com grau de sangue 5/8 Guzerá Leiteiro 3/8 Holandês, com média de 18 meses de idade e peso corporal médio de 187 ± 13,07 kg. O experimento teve duração de 224 dias e os animais foram mantidos em sistema de produção a pasto, em pastejo rotacionado de Brachiaria brizantha 'Marandú'. Os animais foram aleatoriamente alocados em cada um dos tratamentos: Controle (T100): Animais recebendo concentrado para suprir 100 % da exigência de nutrientes para ganho de 750 g/dia; Nutrição compensatória (NC): Animais que alternaram o nível de alimentação entre os períodos, sendo que nos períodos de restrição receberam concentrado para suprir 80 % da exigência de nutrientes digestíveis totais do tratamento controle (T80) e nos períodos de realimentação receberam concentrado para suprir 120 % das exigências de nutrientes digestíveis totais do tratamento controle (T120). Nos períodos de restrição, as médias do tempo de pastejo foram maiores para o NC (533 vs. 426 minutos) (p<0,05). Os tempos de pastejo e ruminação, nos períodos de realimentação foram inferiores nos animais do grupo NC (p<0,05). Durante a realimentação, o número de períodos de permanência no cocho e tempo por período de outras atividades foram maiores nos animais do tratamento NC (p<0,05). No período de restrição, não houve diferenças estatísticas entre o controle e a nutrição compensatória para nenhuma das variáveis dos bocados e deglutição (p>0,05). No período de realimentação, o número de bocados por deglutição tempo por deglutição, números de bocados por dia, os valores foram inferiores (p<0,05) os animais do grupo NC em relação ao controle. O número de mastigações merícicas por dia e o número de bolos ruminados por dia foram diferentes entre o controle e a NC (p<0,05). A nutrição compensatória altera o comportamento ingestivo de novilhas mestiças a pasto.
    Archivos de Zootecnia 03/2013; 62(237):61-71.
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    ABSTRACT: The experiment was conducted to evaluate the inclusion of Gliricidia sepium (Jacq.) Walq forage species for the confection of the fodder salt gliricidia according to the characteristics of carcass and non-carcass components of lambs. Thirty confined, not castrated crossbred Santa Inês lambs, ageing approximately 180 days, with mean live body weight of 25kg, were distributed in a completely randomized design, with five treatments and six repetitions. Treatments were zero (100% NaCl), 93, 95, 97 and 99% inclusion of gliricidia hay (7, 5, 3 and 1% NaCl in the formulation of fodder salt, respectively). The supplementation with gliricidia fodder salt did not affect (P>0.05) the fasting live body weight (28.39kg), hot carcass weight (9.76kg), hot carcass yield (34.12%), cold carcass weight (9.42kg), cold carcass yield (32.95%), chilling loss (3.40%), or white (2.19kg) and red viscera weight (1.29kg). The inclusion of up to 99% gliricidia in the production of fodder salt did not affect (P>0.05) the characteristics of carcass and non-carcass components of lambs.
    Arquivo Brasileiro de Medicina Veterinária e Zootecnia 02/2013; 65(1):289-293. · 0.27 Impact Factor
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    ABSTRACT: This experiment was conducted to evaluate the intake, nutrient apparent digestibility and the effect of total collection days (two and four days) on apparent digestibility estimates for lambs fed diets containing sugar cane treated with calcium oxide (CaO). Eight Santa Inês castrated male lambs with a 16.6±1.8 kg body weight were used. The lambs were distributed in two 4×4 Latin squares, with four experimental periods of 14 d each. The animals were kept in 1.2 m(2) individual pens, and the intake and digestibility evaluations were performed during the last four days of each period. The diets were formulated to be isonitrogenous, containing 14% crude protein (CP), and presenting 70% sugar cane treated with 0, 0.75, 1.5 or 2.25% of CaO (as-fed basis), corrected with 1% urea, and 30% concentrate. The sugar cane with added CaO was chopped, treated, and offered to the animals after 24 h of storage. The sugar cane with CaO increased the DM, OM, CP, NDF, NDFap, TC, NFCap and TDN intake (kg/d), when compared to natural sugar cane, and produced the same intake expressed as a percentage of body weight (% BW). The NFCap digestibility of the CaO-treated sugar cane was inferior to the NFCap digestibility in natural sugar cane. There was a linear increase in the DM intake with the CaO-added sugar cane, but the DM and NDF digestibility and the TDN content decreased linearly. The chemical treatment of sugar cane with CaO increases the intake but does not improve the nutrient digestibility. Two days of total fecal collection were found to be sufficient to estimate the total apparent digestibility in lambs.
    Asian Australasian Journal of Animal Sciences 02/2013; 26(2):218-26. · 0.64 Impact Factor
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    ABSTRACT: Two digestion trials, one with sheep and another with goats, were conducted to evaluate the long-term bias (LTB) of the indigestible dry matter (iDM), indigestible neutral detergent fiber (iNDF) and indigestible acid detergent fiber (iADF) internal markers. The study used eight Santa Inês castrated male sheep (average body weight of 16.6 kg) distributed in two 4×4 Latin squares and eight Saanen castrated male goats (average body weight of 22.6 kg) distributed in two 4×4 Latin squares. The experiments were conducted simultaneously, and the animals were housed in 1.2 m(2) individual pens with wood-battened floors equipped with individual feeders and drinkers. The animals received isonitrogenous diets that were offered ad libitum and contained 14% crude protein and 70% sugar cane (with 0, 0.75, 1.5 or 2.25% CaO, in natural matter percentage), corrected with 1% urea and 30% concentrate. The experiment consisted of four experimental periods of 14 d each, with the feed, leftovers and feces sampled on the last four days of each period. The marker concentrations in the feed, leftovers and fecal samples were estimated by an in situ ruminal incubation procedure with a duration 240 h. The relationship between the intake and excretion of the markers was obtained by adjusting a simple linear regression model, independently from the treatment (diets) fixed effects and Latin squares. For both the sheep and goats, a complete recovery of the iDM and iNDF markers was observed (p>0.05), indicating the absence of LTB for these markers. However, the iADF was not completely recovered, exhibiting an LTB of -9.12% (p<0.05) in the sheep evaluation and -3.02% (p<0.05) in the goat evaluation.
    Asian Australasian Journal of Animal Sciences 01/2013; 26(1):65-71. · 0.64 Impact Factor
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    ABSTRACT: The present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial fermentation dynamics, the treatments resulted from a 4 × 5 factorial combination consisting of 4 cutting heights and 5 fermentation periods, in a completely randomized design with three replications. The fermentation was evaluated at the end of 1, 3, 7, 15 and 30 days. The other characteristics of silages with 30 days were evaluated following a completely randomized design with four treatments, consisting of 4 cutting heights (30, 40, 50 and 60 cm), and five replications. Fermentation period and cutting height effects and interaction between both factors were observed on the populations of lactic acid bacteria (LAB), enterobacteria and molds and yeasts. The peak of development of LAB populations was observed on the seventh day of fermentation for the heights of 40 and 50 cm, with 8.25 and 8.30 log cfu/g, respectively. The pH values of silages ranged with different cutting heights, in which at the height of 50 cm the decrease was most pronounced. However, the pH values were similar between the cutting heights at the end of 30 days of fermentation. Quadratic relationship was observed between lactic acid concentrations and cutting heights. The crude protein content behaved linearly, initially showing 128.5 g/kg DM at 30 cm, decreasing as the cutting heights increased. The neutral detergent fiber and ether extract contents increased linearly with the cutting heights. Based on microbial populations, fermentation, losses and chemical composition, it is recommended to harvest buffel grass for silage from 50 cm on.
    Revista Brasileira de Zootecnia 01/2013; 42(12):850-856. · 0.56 Impact Factor

Publication Stats

42 Citations
39.94 Total Impact Points

Institutions

  • 2010–2014
    • Universidade Federal da Bahia
      Bahia, Estado de Bahía, Brazil
  • 2004–2014
    • Universidade Estadual do Sudoeste da Bahia
      Conquista, Estado de Bahía, Brazil
  • 2013
    • National Institute of Science Technology and Development Studies
      New Dilli, NCT, India
  • 2006–2010
    • Universidade Federal de Viçosa (UFV)
      • Department of Animal Science
      Viçosa, Minas Gerais, Brazil
  • 2005–2008
    • Universidad Francisco de Vitoria
      Pozuelo, Madrid, Spain