Feed Additives For Animals
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Do live or inactive yeasts improve cattle ruminal environment?
ABSTRACT This research was conducted to investigate the effect of live and inactive sugarcane yeast on beef cattle voluntary intake, apparent digestibility of nutrients, ruminal pH, volatile fatty acids (VFA) concentrations, and ruminal ammonia. Five rumen-cannulated Nellore heifers were distributed in a 5×5 Latin square design, with five experimental perio
R. Bras. Zootec.. Publicado em: 22/07/2019
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2. Roughage-free finishing diet based on whole corn grain and a mixture of additives for Nellore heifers
ABSTRACT This study was carried out to evaluate the effect of a blend of additives (choline, methionine, selenium, and organic zinc) on performance, feed efficiency, rumen parameters, and carcass traits of Nellore heifers finished with roughage-free diet. Nellore heifers (n = 36; average BW = 244±24.1 kg; average 24 months of age) were maintained in a feedl
R. Bras. Zootec.. Publicado em: 01/04/2019
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3. Salinomycin and virginiamycin for lactating cows supplemented on pasture
Animals on pasture generally show higher feed efficiency as a result of the use of antibiotics. This study evaluated the effect of the antimicrobials salinomycin and/or virginiamycin on production and the ruminal parameters of supplemented dairy cows grazing on Panicum maximum cv. Tanzania. Twelve Holstein/Zebu multiparous cows were used, distributed in thre
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-08
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4. Prebiotic inulin: Useful dietary adjuncts to manipulate the livestock gut microflora
In recent years, there has been a growing appreciation on the relevance of gastrointestinal microflora in both ruminants and non-ruminants owing to revelation of their role in several physiological functions including digestion, nutrient utilization, pathogen exclusion, gastrointestinal development, immunity system, gut gene expression and quality of animal
Braz. J. Microbiol.. Publicado em: 07/05/2013
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5. Performance, carcass characteristics and gain cost of feedlot cattle fed a high level of concentrate and different feed additives
The objective of this study was to evaluate the effects of feeding cattle with isoprotein and isoenergetic diets, with and without the addition of polyclonal antibody preparation (PAP), yeasts (YST) or monensin sodium (MON) on performance, carcass characteristics and gain cost in feedlot. Ninety-five 20-month old bullocks (323.3±21.8 kg) were distributed in
R. Bras. Zootec.. Publicado em: 2013-01
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6. Efeito da inclusão de açúcar ou inoculante bacteriano na silagem de milho sobre perdas, valor nutricional, eficiência econômica e desempenho de novilhos confinados / Effect of inclusion sugar or bacterial inoculant in corn silage about, losses, nutritional value, economic efficiency and performance of feedlot bulls
The experiment was conducted at the Department of Animal Production (NUPRAN) State University Midwest (UNICENTRO), with the aim of evaluating corn silage with inclusion of sugar or bacterial inoculant, compared with the conventional, about loss, nutritional value, economic efficiency and performance of feedlot bulls. Were evaluated three treatments: T1 - no
Publicado em: 2011
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7. Performance of dairy cows fed rations produced with sugarcane silages treated with additives or fresh sugarcane
An experiment was performed aiming at evaluating the performance of dairy cows fed sugarcane silages treated with additives compared to cows fed fresh forage. Twenty-four Holstein cows were grouped in blocks of three cows, according to parity order and milk production level, in multiple 3 × 3 Latin Square design to evaluate three types of ration (63% rougha
Revista Brasileira de Zootecnia. Publicado em: 2011
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8. Avaliação de antimicrobianos como promotores de crescimento via mistura mineral para bovinos de corte em pastejo / Antimicrobial growth promoters in mineral mixtures for grazing beef cattle
Antimicrobials which modifies rumen fermentation can improve economical efficiency of beef cattle grazing systems and reduce its possible impacts on the environment. It was conducted a series of experiments with the objective of evaluating free-choice mineral mixtures as an antimicrobial delivery system for grazing animals. On experiment 1, at Piracicaba-SP,
Publicado em: 2011
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9. Essential oils from Brazilian plants as in vitro rumen fermentation modifiers / Óleos essenciais de plantas brasileiras como manipuladores da fermentação ruminal in vitro
Na tentativa de reproduzir os benefícios ruminais dos ionóforos, pesquisadores exploram as propriedades antimicrobianas dos compostos secundários dos vegetais. Técnicas in vitro de produção de gás são amplamente utilizadas nas etapas iniciais de pesquisa. Óleos essenciais são compostos hidrofóbicos, sendo comum sua diluição com etanol em experim
Publicado em: 2011
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10. Desempenho e desenvolvimento ruminal de bezerros em sistema de desaleitamento precoce recebendo aditivos alternativos aos antibióticos / Performance and rumen development of calves under early weaning program receiving alternative additives to replace antibiotics
Two studies were conducted to evaluate alternative additives to replace antibiotics on dairy calves production under early-weaning program. On the first trial, the addition of mannanoligosaccharides (MOS) in the diet of dairy calves on performance and plasma parameters indicative of rumen development, as well as the route of administration, milk replacer or
Publicado em: 2010
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11. Aditivos naturais promotores de crescimento em dietas para tilápia do Nilo
The research was developed in Laboratory of Ponderal Evaluation in aquatic Animals (LaAqua), located in the Department of Fisheries and Aquaculture of the UFRPE, with the aim to study the effect of the natural promoter growth additive in feed for Nile tilapia, through the evaluation of the digestibility of the dry matter, crude protein and crude energy of th
Publicado em: 2010
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12. Levedura hidrolisada como fonte de nucleotídeos para leitões recém desmamados / Hidrolyzed yeast as source of nucleotides for weanling pigs
The purpose of this work was to evaluate the effects of dietary nucleotide levels on performance, organs morphometry and intestinal histology of weanling pigs. One hundred and forty-four pigs weaned at 21 days of age and 5.80 ± .16 kg initial live weight were used a completely randomized design experiment with six treatments, six replications per treatment
Publicado em: 2010