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首页> 外文期刊>Animal Feed Science and Technology >Energy and amino acid digestibility of expeller-pressed canola meal and cold-pressed canola cake in ileal-cannulated finishing pigs.
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Energy and amino acid digestibility of expeller-pressed canola meal and cold-pressed canola cake in ileal-cannulated finishing pigs.

机译：回肠插管育肥猪中压榨菜籽粕和冷榨菜籽饼的能量和氨基酸消化率。

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摘要

Residual oil content that increases the dietary energy value makes expeller-pressed canola meal (EPCM) and cold-pressed canola cake (CPCC) attractive feedstuffs for swine. The energy and amino acid (AA) digestibility of EPCM and CPCC were evaluated feeding six crossbred Hypor barrows (initial weight of 65.7+or-1.7 kg) surgically fitted with a simple T-cannula at the distal ileum. Pigs were fed twice daily at 2.8 times the estimated maintenance requirement of digestible energy (DE). Diets containing 500 g/kg of either EPCM or CPCC and an N-free diet were tested in a replicated 3x3 Latin square. The oil content of EPCM was half that of CPCC (105 vs. 202 g/kg). Total glucosinolate content of EPCM was double that of CPCC (11.9 vs. 5.6 micro mol/g). The apparent total tract digestibility coefficient and apparent ileal digestibility coefficient (CAID) of energy were lower (P<0.05) in EPCM than CPCC. The DE (P<0.05) and calculated net energy (NE) content were lower (P<0.001) in EPCM than CPCC (14.3 vs. 16.5 and 9.0 vs. 11.5 MJ NE/kg as fed, respectively). The CAID of lysine and cysteine was lower (P<0.05) in EPCM than CPCC. The standardized ileal digestibility coefficient (CSID) of alanine, cysteine, glycine, histidine, isoleucine, lysine and valine was lower (P<0.05) in EPCM than CPCC. However, the standardized ileal digestible content of all AA was greater (P<0.05) in EPCM than CPCC. In conclusion, lower residual oil and greater content of antinutritional factors (glucosinolates and fibre) in EPCM compared with CPCC were important factors that lowered energy digestibility and DE and NE values in EPCM compared to CPCC and likely lowered CSID of some indispensable AA in EPCM vs. CPCC, including lysine.
机译：残留的含油量增加了饮食的能量值，使压榨机的低芥酸菜粕（EPCM）和冷榨的低芥酸菜籽饼（CPCC）成为猪的诱人饲料。通过饲喂六只杂交Hypor公猪（初始体重为65.7+或-1.7 kg），在回肠末端通过简单的T型插管进行喂养，评估了EPCM和CPCC的能量和氨基酸（AA）消化率。每天给猪饲喂两次，其消耗量是估计的可消化能量维持量（DE）的2.8倍。在复制的3x3拉丁方中测试了包含500 g / kg EPCM或CPCC和无氮饮食的饮食。 EPCM的含油量是CPCC的一半（105 vs. 202 g / kg）。 EPCM中总的芥子油苷含量是CPCC的两倍（11.9对5.6 micro mol / g）。 EPCM的表观能量总消化率系数和表观回肠消化率系数（CAID）均低于CPCC（P <0.05）。 EPCM中的DE（P <0.05）和计算的净能量（NE）含量低于CPCC（分别为14.3 Ms.16.5 vs.9.0 Mg.11.5 MJ NE / kg）。 EPCM的赖氨酸和半胱氨酸的CAID低于CPCC（P <0.05）。 EPCM中丙氨酸，半胱氨酸，甘氨酸，组氨酸，异亮氨酸，赖氨酸和缬氨酸的标准化回肠消化率（CSID）低于CPCC（P <0.05）。但是，EPCM中所有AA的标准化回肠消化率均高于CPCC（P <0.05）。总之，与CPCC相比，EPCM中较低的残留油和更高的抗营养因子（芥子油苷和纤维）含量是与CPCC相比降低了EPCM的能量消化率和DE和NE值的重要因素，并且可能降低了EPCM中某些必不可少的AA的CSID与CPCC，包括赖氨酸。

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