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Revista Brasileira de Zootecnia
Article . 2004
Data sources: DOAJ
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Desempenho e características da carcaça de tourinhos Santa Gertrudes confinados, recebendo dietas com alto concentrado e níveis crescentes de polpa cítrica peletizada Feedlot performance and carcass characteristics of Santa Gertrudis bulls, fed high concentrate diets with increasing levels of dehydrated citrus pulp pellets

Authors: Wignez Henrique; Alexandre Amstalden Moraes Sampaio; Paulo Roberto Leme; Dante Pazzanese Duarte Lanna; Guilherme Fernando Alleoni; José Luiz Viana Coutinho Filho;

Desempenho e características da carcaça de tourinhos Santa Gertrudes confinados, recebendo dietas com alto concentrado e níveis crescentes de polpa cítrica peletizada Feedlot performance and carcass characteristics of Santa Gertrudis bulls, fed high concentrate diets with increasing levels of dehydrated citrus pulp pellets

Abstract

O experimento foi desenvolvido com o objetivo de avaliar o efeito da substituição do milho pela polpa cítrica peletizada sobre o desempenho e as características da carcaça de tourinhos Santa Gertrudes confinados. Vinte e oito animais, com nove meses de idade e peso inicial de 277 kg, foram confinados em baias individuais. O período experimental foi de 92 dias, após 21 dias de adaptação. Os animais receberam dietas contendo 20% da matéria seca como silagem de milho, com 40% de grãos. Foram testados os níveis de 0, 25, 40 e 55% de participação da polpa cítrica peletizada na matéria seca da dieta. Não houve efeito do nível de polpa cítrica na dieta sobre ganho de peso, ingestão diária de matéria seca, eficiência alimentar, rendimento de carcaça, área de olho de lombo e peso da gordura renal-pélvica-inguinal. Os pesos do fígado e da carcaça foram significativamente maiores com o aumento da polpa cítrica na dieta, que também determinou decréscimo linear na espessura de gordura sobre a 12ª costela. O pH das fezes foi semelhante entre os níveis de participação da polpa cítrica. Não foi verificada a ocorrência de abscessos no fígado em nenhum tratamento, apesar da dieta conter alto teor de concentrado. A polpa cítrica peletizada pode compor até 55% da matéria seca de dietas, substituindo o milho em grão, para tourinhos em terminação recebendo altos níveis de concentrado, apenas com diminuição da espessura de gordura.The experiment was developed to evaluate the effect of the replacement of corn grain by dehydrated citrus pulp pellets on the performance and carcass characteristics of Santa Gertrudis young bulls fed high concentrate diets. Twenty-eight bulls, with average age of nine months and an initial weight of 277 kg, were kept in individual pens and fed during 92 days, after 21 days of adaptation. The animals were fed a diet with 20% of the dry matter as corn silage, with 40% of grain. Treatments evaluated included levels of 0, 25, 40 and 55% of dehydrated citrus pulp pellets in the dry matter diet. There was no effect of citrus pulp level on the average daily gain, daily dry matter intake, feed efficiency, carcass dressing, Longissimus muscle area and the kidney, pelvic and inguinal fat. The increasing level of citrus pulp on the diet decreased linearly the backfat thickness and increased linearly the liver weight and carcass weight. The feces pH was similar for all the citrus pulp levels. Liver abscess were not detected, although the diet had high concentrate level. The dehydrated citrus pulp pellets can compound until 55% of dry matter diet, replacing corn grain to finishing young bulls fed high concentrate diets, with a small decrease in subcutaneous fat.

Keywords

liveweight gain, fat thickness, carcass dressing, SF1-1100, empty body weight gain, Animal culture, ganho de peso, espessura de gordura, pH fezes, ganho de peso vazio, rendimento de carcaça, ganho de peso de carcaça, feces pH, carcass weight gain

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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