2003
DOI: 10.3168/jds.s0022-0302(03)73689-3
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Soyhulls as an Alternative Feed for Lactating Dairy Cows: A Review

Abstract: Dairy producers use soyhulls, a byproduct of soybean processing, to replace either grain or forage in diets of lactating dairy cows. In view of the nutritional and economical value of soyhulls it is anticipated that this practice will continue to increase in popularity among nutritionists and producers of ruminant animals. This paper reviews information regarding the nutritional value of soyhulls and the effects of feeding this alternative feed on ruminal fermentation, nutrient digestion and utilization, and p… Show more

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Cited by 144 publications
(120 citation statements)
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References 66 publications
(301 reference statements)
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“…Thus, the higher ADG of the animals receiving the coproducts can be justified by the greater DMI. These results indicate that, despite the high NDF content of SH, it did not promote physical limitation to the consumption, which must be attributed to its high ruminal digestibility (IPHARRAGUERRE & CLARK, 2003), high rate of passage through the rumen due to its small particle size (MERTENS, 1997) and high specific gravity (BHATTI & FIRKINS, 1995). Additionally, the fact that the inclusion of SH (FERREIRA et al, 2011a) or CP (WING et al, 1988) in diets with high concentrate maintains rumen pH higher and stable throughout the day may have contributed to the increase in the DMI and consequently higher ADG of the animals receiving the coproducts.…”
Section: Resultsmentioning
confidence: 73%
“…Thus, the higher ADG of the animals receiving the coproducts can be justified by the greater DMI. These results indicate that, despite the high NDF content of SH, it did not promote physical limitation to the consumption, which must be attributed to its high ruminal digestibility (IPHARRAGUERRE & CLARK, 2003), high rate of passage through the rumen due to its small particle size (MERTENS, 1997) and high specific gravity (BHATTI & FIRKINS, 1995). Additionally, the fact that the inclusion of SH (FERREIRA et al, 2011a) or CP (WING et al, 1988) in diets with high concentrate maintains rumen pH higher and stable throughout the day may have contributed to the increase in the DMI and consequently higher ADG of the animals receiving the coproducts.…”
Section: Resultsmentioning
confidence: 73%
“…Em revisão de literatura, a concentração total de ácidos graxos de cadeia curta tem se mantido ou aumentado com a inclusão da casca de soja em dietas para vacas em lactação (Ipharraguerre & Clark, 2003). Da mesma forma, neste trabalho, não se verificou efeito (P>0,05) da utilização desse subproduto em substituição ao feno de coastcross, que é justificado pela semelhança entre os tratamentos dos dois principais ácidos graxos de cadeia curta (acetato e propionato) produzidos no rúmen.…”
Section: Resultsunclassified
“…As concentrações de acetato, propionato, butirato e ácidos graxos de cadeia curta total e a relação Ipharraguerre & Clark (2003), a amplitude do declínio do pH ruminal está ligada à quantidade e ao tamanho de partículas de forragem da dieta. Weidner & Grant (1994a) reportaram que a quantidade de FDN na casca de soja é similar à das forragens, porém de menor efetividade em estimular a ruminação e salivação e, consequentemente, em manter o pH ruminal a valores maiores.…”
Section: Resultsunclassified
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