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Grão de girassol ou gordura protegida na dieta com alto concentrado e o ganho compensatório para cordeiros

Authors: Homem Junior, Antonio Carlos;

Grão de girassol ou gordura protegida na dieta com alto concentrado e o ganho compensatório para cordeiros

Abstract

One evaluated the inclusion of lipids from either the sunflower grains or protected fat in high-concentrated diets for lambs on nutrients digestibility and nitrogen balance. 12 lambs were used (average weight of 25 kg) in randomly assigned design, were totally collected excrete. The fermentation ruminal was accomplished using six sheep (average weight of 30 kg) with fistula in the rumen, distributed in double Latin Square design with three diets and three periods, were sample contents and ruminal incubations for evaluation of pH, ammonia, short chain fat acids, microbial mass .and ingredients degradability. The performance in feedlot with compensatory gain was achieve using 36 lambs (average weight of 18 kg), were randomly assigned in factorial scheme (3 diets X 2 feeding handlings). One could not associate any etfects of the diet with the dry matter digestibility (67.3%), crude protein digestibility (72.1 %), total carbohydrates (60.9%) and no fiber carbohydrate (93.7%), as well as for nitrogen balance, that results in an average nitrogen intake value of 36.1 g/day, retention value of 17.5 g/day and a 66.9% retained/absorbed relation. There were no significant differences among the diets for ruminal ammonium concentration (18 mg/dL), pH (6.1), total production short chain fat acids (98 mM), acetate molar proportion (66.4%), propionate (20%) and butyrate (13%) and neither for the acetate:propionate ratio (3.2: 1 ). During the initial feedlot period, the weight gain was superior (p0.05) was detected in comparison to the control diet... (Complete abstract click electronic access below)

Foi estudada a inclusão de lipídios advindos dos grãos de girassol ou da gordura protegida em dietas com alto concentrado para cordeiros sobre a digestibilidade dos nutrientes e o balanço nitrogenado. Foram utilizados 12 cordeiros com peso médio de 25 kg distribuídos em delineamento inteiramente casualizado (DIC), onde foram coletadas totalmente as excretas. A fermentação ruminal foi realizada utilizando seis ovinos, com peso médio de 30 kg, canulados no rúmen, distribuídos em delineamento quadrado latino duplo com três dietas e três períodos, nos quais foram amostrados conteúdos e realizadas incubações ruminais para avaliação do pH, amônia, ácidos graxos voláteis,' massa microbiana e degradabilidade dos ingredientes. O desempenho em confinamento com ganho compensatório foi realizado utilizando 36 cordeiros, com peso médio de 18 kg, distribuídos num DIC em esquema fatorial 3 dietas e 2 manejos de alimentação. Não foram observados efeitos da dieta sobre a digestibilidade da matéria seca (67,3%), proteína bruta (72,1%) carboidratos totais (60,9%) e carboidratos não fibrosos (93,7%), assim como para o balanço nitrogenado, apresentando valores médios 36,1 g/dia para ingestão, de 17,5 g/dia para retenção e relação retido/absorvido de 66,9%. Não houve diferenças entre as dietas para a concentração ruminal de amônia (18 mg/dL), pH (6,1), produção total (98 mM), proporções molares de acetato (66,4%), propionato (20%) e butirato (13%) e para razão acetato: propionato...

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Pós-graduação em Zootecnia - FCAV

Country
Brazil
Keywords

Cholesterol, Sheep, Fermentação, Digestibility, Performance, Lipidios, Fermentation, Digestibilidade, Desempenho, Ovino - Nutrição, Colesterol, Lipids

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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
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