COMPARISON OF GROUND RAW SOYBEAN AND SOYBEAN MEAL DIETS ON CARCASS TRAITS OF GILTS

Journal of Muscle Foods Pub Date : 2010-06-16 DOI:10.1111/j.1745-4573.2009.00199.x

DANIEL J. SYKES, JOHN S. COUVILLION, JAMES M. MARTIN, THOMAS G. ALTHEN, BRIAN J. RUDE, MARK CRENSHAW, PAT GERARD, PETER L. RYAN

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引用次数: 2

Abstract

ABSTRACT

As part of an ongoing reproductive efficiency study with gilts fed a raw soybean (RSB) diet, an assessment of carcass traits was performed to measure the effect of antinutritional factors present in RSB. Yorkshire × Landrace crossbred gilts (n = 20) were assigned to balanced isonitrogenous (crude protein 14%), isocaloric diets using either soybean meal (SBM, n = 10) or ground RSB (n = 10) as the protein supplement. Gilts were fed to day 35–45 of gestation and then harvested for recovery of the reproductive tract and carcass assessment. Carcass trait values included: a decrease (P ≤ 0.05) in hot carcass weight of RSB gilts, but no differences in carcass length, back fat thickness (cm) at 1st rib, 10th rib, last rib, last lumbar and average back fat. Loin area cm², % fat free lean, muscle score and United States Department of Agriculture grade scores did not differ (P > 0.05). Thus, supplementing diets of prepubertal gilts through to early gestation with ground RSB had no observed adverse effects on carcass quality traits.

PRACTICAL APPLICATIONS

Raw soybeans (RSB) are not commonly used in swine diets due to known presence of antinutritional factors that may retard growth in young swine and may also affect carcass quality. However, the effect of using RSB on carcass quality in older swine has yet to be examined. The data from this study show that supplementation of swine diets with RSB can be used in gilts 155 days of age and older without affecting carcass quality.

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粗豆粉与豆粕饲粮对后备母猪胴体性状的影响

摘要本研究正在对饲喂原料大豆(RSB)饲粮的后备母猪进行繁殖效率研究，通过对胴体性状的评估来衡量RSB中存在的抗营养因子的影响。选用大约克×长白杂交后备母猪(n = 20)，饲喂均衡等氮(粗蛋白质14%)、等热量饲粮，分别以豆粕(n = 10)或牛血清渣(n = 10)作为蛋白质补充。饲喂至妊娠第35-45天，然后收获用于生殖道恢复和胴体评估。胴体性状值包括:RSB后备母猪热胴体重降低(P≤0.05)，胴体长度、第1肋、第10肋、最后肋、最后腰椎脂肪厚度(cm)和平均背部脂肪无显著差异。腰面积cm2、无脂肪瘦肉%、肌肉评分和美国农业部评分无差异(P > 0.05)。由此可见，在青春期前至妊娠早期的后备母猪饲粮中添加地面RSB对胴体品质性状无不良影响。生大豆(RSB)不常用于猪的日粮中，因为已知存在的抗营养因子可能会阻碍幼猪的生长，也可能影响胴体质量。然而，使用RSB对老年猪胴体质量的影响还有待研究。本研究结果表明，在155日龄及以上的后备母猪饲粮中添加RSB不影响胴体质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Muscle Foods 工程技术-食品科技

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