Odilon Pereira

Universidade Federal de Viçosa (UFV) - Federal University of Vicosa, Brazil · Departamento de Zootecnia - Department of Animal Science

The study objective was to evaluate the effects of the addition of exogenous protease on the fermentation and nutritive value of rehydrated corn and sorghum grain silages during various storage periods. Treatments were applied using a 2 × 6 × 3 factorial combination, with 2 types of rehydrated grains (corn and sorghum), 6 doses of the enzyme (0, 0....

Abstract The objective of this study was to evaluate the morphogenic, structural, and chemical characteristics of Brachiaria grass (Urochloa decumbens) intercropped with forage peanut (Arachis pintoi) under three-row spacings (40, 50, and 60 cm) and two post-grazing residual heights (5 and 15 cm). The experiment was performed in a randomized block...

The objective of this study was to evaluate the morphogenic, structural, and chemical characteristics of Brachiaria grass (Urochloa decumbens) intercropped with forage peanut (Arachis pintoi) under three-row spacings (40, 50, and 60 cm) and two post-grazing residual heights (5 and 15 cm). The experiment was performed in a randomized block design wi...

This study explores the soil carbon efflux and pasture growth during summer-fall and winter-spring in two different years based on field and lysimeter experiments. Soil respiration, soil and air temperatures, leaf photosynthesis, plant dry weight, and leaf area index are quantified to characterize the influence of seasonality in the Brachiaria grow...

Due to the co-evolved intricate relationships and mutual influence between changes in the microbiome and silage fermentation quality, we explored the effects of Lactobacillus plantarum and Propionibacterium acidipropionici (Inoc1) or Lactobacillus buchneri (Inoc2) inoculants on the diversity and bacterial and fungal community succession of rehydrat...

O objetivo do estudo foi avaliar composição química, perfil fermentativo, população de microrganismos e recuperação de matéria seca (RMS) de silagem de cana-de-açúcar contendo níveis crescentes (0, 25, 50 e 75%, na base da matéria natural) de amendoim forrageiro (Arachis pintoi cv. Belmonte), tratadas ou não com Lactobacillus buchneri. Usou-se o es...

The objectives of this study were to evaluate the effect of lactic acid bacteria (LAB) with bacteriocinogenic activity isolated from stylo silages on the microbial population, chemical composition and fermentation profile of forage peanut silage (FPS) and to identify LAB species in forage peanut and its silages based on the 16 S rRNA sequence analy...

The objective of this study was to evaluate the effects of silage and concentrate on nutrients digestibility, ruminal fermentation, efficiency of nitrogen use and animal performance of feedlot beef cattle. Two experiments were conducted simultaneously evaluating the same diets. The forage: concentrate ratio was 50:50 and diets consisted of Stylosan...

The aerobic deterioration of silage nutrients is inevitable in tropical countries, causing negative consequences in animal production systems. Aiming to minimize the losses, the effects of Lactobacillus buchneri strains on fermentation profile and aerobic stability of corn silages were evaluated. The experiment was conducted under a completely rand...

There is evidence for the beneficial effects of forage peanut on the nutritive value and fermentation profile of silages; however, its effects on sugarcane silage have not been determined. The objective of the study was to evaluate the chemical composition, fermentation profile, microbial composition, and dry matter recovery (DMR) of sugarcane sila...

The objective of this study was to evaluate the total and partial digestibility, ruminal pH and ammonia nitrogen (NH3-N) concentration, nitrogen balance (Experiment 1) and performance (Experiment 2) of beef cattle fed diets containing corn silage (CS) and Stylosanthes (silage or hay) as forage source. Treatments were: 1) CS; 2) Stylosanthes silage...

The aim was to evaluate the effects of polyethylene glycol (PEG) supplementation to young or old tropical forage legumes (TFL) that were either fresh or ensiled on in vitro gas production (IVGP) and short-chain fatty acid (SCFA) production. Samples of tropical forage grasses (TFG) i.e. Pennisetum purpureum (PP) and Setaria sphacelata (SS) were coll...

This study aimed to evaluate the accumulation, structural characteristics, and chemical composition of deferred signal-grass pastures that were subjected to four treatments: without nitrogen fertilization, intercropped with calopo (Calopogonium mucunoides), and fertilized with urea N (50 kg ha −1 and 100 kg ha −1) for 2 years. The design was in ran...

The objective of this study was to evaluate nutrient intake, in vivo digestibility, and in situ degradability of different cultivars of hay (i.e., [Jiggs] and [Tifton-85] bermuda grass (Cynodon spp.) and [alfalfa] (Medicago sativa) and [stylo] Campo Grande (Stylosanthes sp.)) and nitrogen balance in sheep. We used eight rumen-cannulated F1 Santa In...

The objective of this study was to evaluate the effects of regrowth age (RA) and cutting time (CT) of elephant grass (Cenchrus purpureus cv. Cameroon) on the fermentation profile, microorganism population, and nutritive value of the silage in two simultaneous trials at different sites. A 2 × 2 factorial scheme with two CTs (08:00 and 14:00) and two...

Background: No studies have been conducted evaluating sugarcane silage associated with both Lactobacillus plantarum and Pediococcus pentosaceus for lactating dairy cows. Objective: To evaluate diets containing different roughages with and without microbial inoculants on intake, digestibility and milk yield of medium-producing cows. Methods: A total...

The objective of this study was to isolate and characterize lactic acid bacteria with probiotic potential in silages of different species of forage plants, cocoa beans, and artisanal salami. The obtained isolates were submitted to the following evaluations: (i) screening for tolerance to pH 2 and bile salts, (ii) genotypic identification of isolate...

The study evaluated chemical composition, fermentation profile, microbial population and dry matter recovery of silages made from mixtures of palisade grass (Urochloa brizantha cv. Marandu) and forage peanut (Arachis pintoi cv. Belmonte). The experiment was conducted and analyzed in a complete randomized factorial design using 5 levels of each fora...

The objective of this work was to evaluate the effect of fertilization of a marandu grass pasture with microalgae biomass produced during the treatment of a wastewater from a dairy farm as a nitrogen source. The experimental design consisted of randomized blocks with three treatments (C - without fertilization, Q - chemical fertilization, and B - b...

The first part of the study aimed to isolate, characterize, and identify wild lactic acid bacteria (LAB) strains from alfalfa silage produced in a tropical area. LAB strains were isolated from alfalfa silage ensiled for 1, 3, 7, 14, 28, and 56 days (d) and were identified by sequencing the 16S rRNA gene. The second part aimed to investigate the eff...

Tropical grass has some advantages for ensilage, such as high annual production of dry matter per unit area, perennity, low loss risk, and higher harvest flexibility. We aimed with this study to assess the chemical composition, microbial population, fermentation characteristics, and effluent production of stylo (Stylosanthes capitata × S. macroceph...

Objective Our objective was to evaluate the effects of ensiling on the corn silage processing score (CSPS) and fermentation and long-chain fatty acids (LCFA) profiles of unprocessed whole-plant corn. Materials and Methods Eleven corn hybrids were harvested and chopped separately (unprocessed) into approximately 16-mm-length particles and divided i...

The nutritive value, fermentation profile, microbial population, and effluent and gases losses of sweet potato vine silages, with and without microbial inoculant, were evaluated. The experiment was conducted in a 5 × 2 factorial arrangement, with five sweet potato genotypes (BD-08, BD-23, BD-25, BD-31TO, and BD-43) and presence/absence of microbial...

Chemical composition was assessed in soybean silages without any additive (control), with a microbial inoculant (I), with I + molasses (I+M), and with molasses only (M). Soybean plants were harvested at the reproductive 6 (R6) stage and ensiled in 2 kg-capacity PVC laboratory silos. The SIL ALL C4 inoculant produced by Alltech Brazil was used in co...

The microbial community present in forage peanut, a tropical legume, and its silages are unknown. For this reason, we used the Ion Torrent platform to study the bacterial community present in this legume during silage fermentation. Forage peanut was harvested at the start of flowering with a backpack mower and was chopped with a stationary ensilage...

The effects of new strains of lactic acid bacteria on alfalfa silage fermentation were evaluated. The experiment was performed using a completely randomized design (with three replicates) based on a 6 × 6 factorial assay with 6 inoculants (I): Control (CTRL), Commercial inoculant (CI), Lactobacillus pentosus 14.7SE (LPE), Lactobacillus plantarum 3....

This study was conducted to evaluate the fermentative profile and microbial populations of wilted and non-wilted alfalfa silages ensiled with or without inoculant and the population dynamics of lactic acid bacteria (LAB) of wilted alfalfa plant and theirs silage. A 2 × 2 × 6 factorial arrangement was used, with the absence or presence of wilting (W...

Background: Sugarcane silage has been increasing as a feed in the tropics by dairy farmers. However, sugarcane normally had high yeast population that leads to intense alcoholic fermentation and excessive dry-matter (DM) loss during ensilage and after air exposure, as well. Objective: This study aimed to investigate the changes in pH, DM, water-...

Biological silage additives can assist in making silages by promoting a rapid reduction in silage pH and preventing aerobic deterioration. The current Lactobacillus buchneri on the market produces acetic acid slowly and identifying strains that would improve aerobic stability earlier in the ensiling process would be helpful. This study aimed to inv...

The objective of this study was to evaluate the effect of microbial inoculant (MI) containing Lactobacillus buchneri (LB) on silage fermentation and aerobic stability (AS) of sorghum silages. The whole plant was chopped into 2 cm particle size and ensiled in plastic buckets (mini-silos) 25 cm diameter and 25 cm height, sealed with tight lids. Five...

The objective of this study was to evaluate the in vitro dry matter (DM) and neutral detergent insoluble fiber (NDF) degradability of Urochloa decumbens (UD), Arachis pintoi (AP), and 50:50 mixture (UD: AP). A half gram of sample ground to 1-mm sieve was conditioned in Ankom® bags, in duplicate for each incubation time (0, 3, 6, 12, 24, 48, 72, and...

The objective of this study was to evaluate the morphogenetic characteristics of signal grass (Urochloa decumbens) pastures in monoculture and intercropped with forage peanut (Arachis pintoi cv. Belmonte), managed under rotational stocking by crossbred dairy cows, using three row spacings (40, 50 and 60 cm) and two post-grazing sward heights (5 and...

The objectives of this study were to isolate and identify lactic acid bacteria (LAB) in guinea grass (Panicum maximum Jacq. cultivar Mombasa) silage harvested in the summer (February) and winter (August) of 2017, at 60 and 122 days of regrowth, respectively. The grass was chopped into 1.5 cm particle size and ensiled in bags measuring 25.4 × 35.56...

Introduction of legumes into tropical grass pastures can potentially produce changes in nutrient recycling. The objective of this study was to evaluate the dynamics of litter decomposition and nitrogen mineralization in signalgrass and forage peanut mixed pastures, using three row spacings (40, 50 and 60-cm) and two post-grazing sward heights (5 an...

The objective of this study was to evaluate in vivo digestibility and in situ degradability of grass (Cynodon cvs. Jiggs and Tifton-85) and legume hays (Medicago sativa and Stylosanthes cv. Campo Grande), and nutrient intake and nitrogen balance by sheep. Eight castrated male ruminally cannulated sheep (35.0 kg of body weight), Santa Inês x Dorper,...

The objective of this study was to evaluate the effect of harvest time (HT) and regrowth age (RA) of elephant grass cv. Cameroon on fermentation profile, microbiology population, and digestibility of silages. A 2 × 2 factorial scheme with two HT (8 and 14 h) and two RA (8 and 16 weeks) was used, in a completely randomized design with four replicate...

The costs of corn destined to silage production were evaluated according to soil preparation system used: conventional tillage or no-tillage systems, with or without previous plantation of common beans. Data and samples of eighteen dairy farms, were collected from September/2009 to April/2010 and corrected to February 2018 based on IGD-DI. The farm...

Fermentation profile and microbial population were assessed in soybean silages without any additive (control), with inoculant (I), with I + powdered molasses (I+M), and with powdered molasses only (M). Soybean plants were harvested at the R6 stage and ensiled in 2kg-capacity laboratory silos. The additives were added to the natural matter base of s...

This study explores the effect of seasonality on soil carbon efflux and pasture growth based on field and lysimeter experiments during summer-fall and winter-spring in two years. Focus is also pointed on irrigation strategies to alleviate the crop response to seasonal fluctuations in precipitation and surface temperatures. Soil respiration, soil an...

Legume silage can increase the forage quality of the diets as well as supply it with nitrogen, calcium and phosphorus. The objective was to evaluate the intake, apparent digestibility, rumen fermentation and nitrogen efficiency in sheep fed a tropical legume silage with or without concentrate. Twelve crossbred sheep with an average initial body wei...

Glycerol, the main constituent of crude glycerin, has high energy efficiency and may provide energy to microorganisms in silage. Therefore, we evaluated the effect of including crude glycerin (CG) and a bacterial inoculant on the chemical composition, losses, fermentation profile, microbial population and aerobic stability of rehydrated corn grain...

Sugarcane silage can be used in animal production systems; however, it is important to apply additives to improve its chemical composition and fermentative quality. We evaluated the effect of chemical (urea and calcium oxide (CaO)) and microbial (Lactobacillus buchneri (LB), Lactobacillus plantarum, Pediococcus pentosaceus, and Propionibacterium ac...

This study was aimed to perform a screening of Lactobacillus buchneri strains from maize silage and use them as inoculant in maize and sugarcane silages. In all, 151 lactic acid bacteria (LAB) strains were isolated from whole‐plant maize silage, and their identification was based on the sequence analysis of 16S rDNA. In total, 15 strains were categ...

Objetivou-se avaliar a composição química, o perfil fermentativo, a população de micro-organismo e a recuperação de matéria seca de silagens de cana-de-açúcar tratada com diferentes misturas de inoculantes microbianos. O experimento foi conduzido no delineamento inteiramente casualizado, com seis tratamentos e três repetições. Os tratamentos consis...

The nutritive value and fermentation quality of palisadegrass (Brachiaria brizantha cv. Xaraes) and stylo (Stylosanthes capitata × S. macrocephala cv. Campo Grande) mixed silages were evaluated. The experiment was analyzed in a factorial scheme (5 × 2) in a completely randomized design using increasing levels of stylo (0, 25, 50, 75 and 100% on a f...

The chemical composition, fermentation profile, microbial population and dry matter recovery were evaluated in marandu grass silages containing different levels of Stylo legume cv. Campo Grande treated or not with microbial inoculant. A 4 × 2 factorial arrangement (four levels of Stylo legume, with and without microbial inoculant) was used in a com...

The goals of the present study were to isolate and identify the lactic acid bacteria (LAB) that colonize tropical whole-plant corn silage during the fermentation process. The experiments were conducted and crops were grown at the Department of Animal Science of the Federal University of Vicosa, Minas Gerais, Brazil. Corn (Zea mays) plants were harv...

The objectives of this study were evaluate the Lactobacillus buchneri strains isolated from tropical whole-plant corn silage for use as silage inoculant. The corn (Zea mays) plants with kernels at hard dough stage of maturity were harvested. The isolated strains 56.22, 56.27, 56.28, and 56.29 were evaluated and the theoretical application rate was...

The objective of this study was to evaluate the Lactobacillus buchneri strains isolated from tropical whole-plant corn silage for use as a silage inoculant in sugarcane. Sugar cane plants (approximately 16 mo old) were harvested and chopped to 25 mm. The isolated strains 56.1, 56.4, 56.9, and 56.26 and the commercial inoculant “Lalsil Cana” (L. buc...

The objectives were to examine the aflatoxin B1 (AFB1)-binding capacity of silage bacteria and factors affecting the responses. Experiments 1 and 2 examined the effects of bacterial strain and population on the AFB1-binding capacity of 10 bacteria. When applied at 10⁶ cfu/mL to an in vitro medium, only Lactobacillus plantarum PT5B bound the AFB1 an...

The objective of this study was to evaluate the ruminal and intestinal digestion, the ruminal fermentation and the performance of beef cattle fed diets containing Stylosanthes silage (StS) and corn silage (CS). The treatments consisted of diets containing StS with different concentrate levels, based on dry matter (DM) (g/kg): 200 (StS-200), 400 (St...

The aim of this study was to evaluate the dry matter production and the structural and bromatological characteristics of Brachiaria and Panicum cultivars. The study was conducted in a greenhouse in a randomized complete block design with five treatments, three cultivars of Brachiaria (B. decumbens cv. Basilisk, B. brizantha cv. Marandu and cv. Xara...

Two trials were conducted to evaluate the effects of silage crop and levels of dietary crude protein (CP) in Nellore beef cattle. The experimental diets consisted of Stylosanthes (StS) or corn silage (CS) with two levels of dietary CP, 110 and 130g CP/kg diet on a dry matter (DM) basis. The forage to concentrate ratio was 50:50 on a DM basis. In Ex...

This study evaluated the forage mass, plant height, chemical composition and chlorophyll index of signal grass (Brachiaria decumbens cv. Basilisk), as well as the content of organic matter (OM) in soil under increasing levels of nitrogen. The experiment was conducted in the Rio Manso Farm, experimental unit of the Federal University of the Jequitin...

The fermentation profile, chemical composition, and microbial populations of alfalfa silages treated with microbial inoculants (MI) at different fermentation periods (T) were evaluated in tropical conditions. A 4 × 6 factorial arrangement was used in a randomized design with 3 replicates. Fresh alfalfa was treated with (1) no treatment (CTRL), (2)...

The objective of this study was to evaluate performance of beef cattle fed diets containing Guinea grass silage treated with microbial inoculants. The Experiment 1 evaluated the intake and the total and partial apparent digestibility of nutrients, pH and ruminal ammonia concentration of diets containing Guinea grass silages. The intakes of all the...

Brachiaria brizantha cv. Marandu silages (BBS) were ensiled at two (35 and 70 d) regrowth ages (RA), with and without microbial inoculant (MI). No differences were observed regarding the chemical composition and fermentation parameters, with the exception of volatile fatty acids, which were affected by MI and RA interaction. No effects were observe...

Intake and apparent digestibility of nutrients, ruminal ammonia concentration, ruminal pH, and microbial protein synthesis were evaluated in sheep fed diets containing Stylosanthes cv. Campo Grande silage (StS) or corn silage (CS) with and without concentrate [C; 40% of the dry matter (DM)]. Four sheep with an average initial body weight of 41 ± 2....

Intake and apparent digestibility of nutrients, ruminal ammonia concentration, ruminal pH, and microbial protein synthesis were evaluated in sheep fed diets containing Stylosanthes cv. Campo Grande silage (StS) or corn silage (CS) with and without concentrate [C; 40% of the dry matter (DM)]. Four sheep with an average initial body weight of 41 ± 2....

The objective of this study was to determine the best level and the effect of diets containing different levels of crude protein (CP) on performance and carcass characteristics of feedlot Santa Inês lambs. In trial 1, eight intact lambs with an average live weight of 25.8 kg were distributed in two 4 x 4 Latin squares and were kept in individual me...

This experiment evaluated the effect of molasses with or without microbial additive on soybean silage regarding the intake, digestibility and growth performance of beef cattle. The experimental design used was randomized blocks with four treatments (diets with soybean silage (SS), SS with microbial inoculant, SS with molasses and SS with microbial...

Two trials were conducted to evaluate how calcium oxide (CaO) as an additive in sugar cane silage affects animal performance and diet digestibility. Experiment 1 included thirty-five crossbred steers (Holstein x Nellore) with an average body weight (BW) of 350 ± 18.3 kg, which were distributed across a randomized block design with five treatments a...

Objetivou-se determinar a altura de plantas, o número de folhas totais e vivas, a composição química e a produção de massa seca, no primeiro corte e aos 21 dias de rebrota, do estilosantes cv. Campo Grande, sob diferentes níveis de potássio (K2O), com e sem zinco (Zn). O experimento foi realizado em esquema fatorial 4 x 2, no delineamento em blocos...

Effects of replacement of soybean meal by wet or dry castor bean meal (CM) in diets of feedlot lambs on animal performance, carcass traits, intake, digestibility and hepatic function were assessed. Thirty-five mixed-breed woolless lambs averaging 20±0.26 kg body weight were randomly assigned into five treatments in a 2×2+1 factorial design with 7 a...

It was hypothesized that Stylosanthes cv. Campo Grande (ES) silage could be used as the single source of dietary forage for beef cattle and that performance on ES would be similar to (corn silage) CS at a 50:50 forage:concentrate ratio. The objectives of this study were to evaluate intake; total and partial digestibility of nutrients, ruminal pH, r...