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Mostrando 1-12 de 77 artigos, teses e dissertações.
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1. Produção e composição do leite em função da alimentação de vacas mestiças Holandês x Zebu confinadas em condições experimentais no Brasil - Metanálise
RESUMO Objetivou-se avaliar os fatores da composição da dieta que podem interferir no consumo, na digestibilidade, na produção e na composição do leite de vacas mestiças Holandês x Zebu confinadas em condições experimentais no Brasil. A metanálise foi utilizada para o levantamento de trabalhos científicos de domínio público, compreendendo o per
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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2. Performance and grazing behavior of growing goats supplemented with palm tree fruit
ABSTRACT This study aimed to evaluate the performance and ingestive behavior of growing goats grazing on Tanzania guinea grass and fed diets containing 40% carnauba or tucum fruits. Twenty-one male castrated goats were distributed into three groups, one exclusively on pasture and the other two on pasture and fed diet supplemented at the level of 1.5% body we
R. Bras. Zootec.. Publicado em: 13/05/2019
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3. Silage of the agro-industrial co-product of babassu palm heart processing in sheep feed
RESUMO: No processo industrial de fabricação de palmito babaçu (Attalea speciosa) em conserva, a entrecasca ou bainha menos tenra, apresenta características impróprias à alimentação humana, sendo muitas vezes descartada de forma inadequada, oferecendo riscos de poluição ambiental. De tal forma, objetivou-se avaliar o consumo e a digestibilidade em
Cienc. Rural. Publicado em: 28/03/2019
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4. Performance of Nellore calves in tropical pasture consuming different types of concentrated supplements
RESUMO Foi avaliada a utilização de tipos de suplementos concentrados sobre o desempenho de bezerros Nelore em pasto de Urochloa brizantha cv. Marandu na época seca. O experimento foi conduzido em 24ha divididos em 12 piquetes. Foram utilizados 72 bezerros com peso corporal (PC) inicial de 176±14kg por 140 dias de experimento. Os tratamentos foram: miner
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2019-02
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5. Nutritive value of corn silage from intensive dairy farms in Brazil
ABSTRACT The objective of this research was to characterize the nutritive value of corn silage made on intensive dairy farms and demonstrate the nutritional variations between silages located at the top and at the center of a bunker silo. Thirty-two dairy farms were visited in four Brazilian states. One corn bunker silo of each farm was chosen and samples we
R. Bras. Zootec.. Publicado em: 2017-06
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6. Impact of total substitution of corn for soybean hulls in diets for lambs
The experiment was conducted to assess the effect of substituting corn for soybean hulls on the apparent digestibility of nutrients, carcass performance and characteristics, and yield of cuts of 25 non-castrated male Santa Ines lambs with an initial body weight of 20±2 kg, at approximately 6 months of age, sheltered individually in stalls (1.10 × 1.0 m), c
R. Bras. Zootec.. Publicado em: 2015-03
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7. Models of protein and amino acid requirements for cattle
Protein supply and requirements by ruminants have been studied for more than a century. These studies led to the accumulation of lots of scientific information about digestion and metabolism of protein by ruminants as well as the characterization of the dietary protein in order to maximize animal performance. During the 1980s and 1990s, when computers became
R. Bras. Zootec.. Publicado em: 2015-03
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8. Productive performance and blood parameters of bulls fed diets containing babassu mesocarp bran and whole or ground corn
The objective of the present study was to evaluate the effects of corn milling and the inclusion of babassu mesocarp bran (BMB) on productive performance, digestibility of dietary nutrients, and blood parameters of dairy crossbred (Holstein-Gyr) bulls finished in confinement. Twenty-four bulls were fed four different experimental diets, containing two levels
R. Bras. Zootec.. Publicado em: 2015-01
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9. Cana-de-açúcar in natura e ensilada com ou sem aditivo bacteriano em dietas para vacas lactantes
Objetivou-se avaliar o efeito da utilização de cana-de-açúcar in natura, silagem de cana sem ou com Lactobacillus buchneri e cana queimada sem ou com L. buchneri sobre o comportamento ingestivo, balanço de nitrogênio e síntese de compostos nitrogenados microbianos em vacas lactantes. Foram utilizadas cinco vacas mestiças, ¾ Holandês x Gir, distribu
Acta Sci., Anim. Sci.. Publicado em: 2014-12
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10. Sulfur sources in protein supplements for ruminants
The present study evaluates the efficiency of different sulfur sources for ruminant nutrition. The fiber digestibility and the amino acid profile were analyzed in the duodenal digesta of crossbred steers fed Brachiaria dictyoneurahay. The sources utilized were elemental sulfur (ES70S), elemental sulfur (ES98S); calcium sulfate in hydrated (HCS), CaSO4.2H2O,
R. Bras. Zootec.. Publicado em: 2014-10
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11. Forage cactus associated with different fiber sources for lactating Sindhi cows: intake, digestibility and microbial protein production
This experiment was carried to evaluate the effect of forage cactus with different fiber sources (elephant grass hay [EGH], corn straw [CS], hay of cassava shoots [HCS], fresh sugarcane bagasse [FSB], and hydrolyzed sugarcane bagasse [HSB]) on intake, apparent digestibility and macrobiotic protein production of cows. Five cows with 265 kg average body weight
R. Bras. Zootec.. Publicado em: 2014-10
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12. Effects of phenolic compounds in propolis on digestive and ruminal parameters in dairy cows
Four rumen-cannulated primiparous lactating cows were studied in a 4 × 4 Latin square design experiment to evaluate the effects of propolis-based products (PBP) with different concentrations of propolis and alcohol levels on total digestibility, (TD), ruminal digestibility (RD), intestinal digestibility (ID), pH, ruminal ammonia-nitrogen production (NH3-N),
R. Bras. Zootec.. Publicado em: 2014-04