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首页> 外文期刊>Tropical Animal Health and Production >Effect of replacing soybean protein by taro leaf (Colocasia esculenta (L.) Schott) protein on growth performance of exotic (Landrace × Yorkshire) and native (Moo Lath) Lao pigs
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Effect of replacing soybean protein by taro leaf (Colocasia esculenta (L.) Schott) protein on growth performance of exotic (Landrace × Yorkshire) and native (Moo Lath) Lao pigs

机译：芋头叶（Colocasia esculenta（L.）Schott）蛋白替代大豆蛋白对外来（Landrace×Yorkshire）和本地（Moo Lath）老挝猪生长性能的影响

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摘要

The impact of replacing soybean crude protein (CP) with CP from ensiled taro leaves (ET) on growth performance, carcass traits, and organ weights in Landrace × Yorkshire (LY) and Moo Lath (ML) Lao pigs was studied. Twenty-four castrated male pigs, 12 of each breed, were allocated to the treatments according to a completely randomized 3 × 2 factorial (three levels of ET × two breeds) arrangement with four pigs per treatment. The pigs were kept in individual pens and were fed at 4 % dry matter of body weight for 105 days. The control diet (ET0) was formulated with soybean meal as the main CP source, and in the other two diets, soybean CP was replaced to 25 % (ET25) and 50 % (ET50), respectively, with CP from ensiled taro leaves. Calculated metabolizable energy intake decreased with increasing replacement of soybean CP in the diet, while dry matter intake (DMI), CP intake (CPI), average daily gain (ADG), and feed conversion ratio (FCR) were unaffected. Carcass weight, back fat thickness, and dressing percentage were unaffected by soybean CP replacement, while organ weights (except for spleen) increased (P < 0.001) when soybean CP was replaced by CP from ensiled taro leaves in the diet. LY pigs had higher (P < 0.001) DMI, CPI, and ADG and better (P < 0.001) FCR than ML pigs. LY pigs had higher carcass weight (P < 0.001), lower back fat thickness (P < 0.001), and higher organ weights (P < 0.05–0.001) than the ML pigs. In conclusion, taro leaf silage can replace up to 50 % of soybean CP in the diet of growing Lao LY and ML pigs without negative effects on performance and carcass traits.
机译：研究了用青贮芋头叶（ET）的CP代替大豆粗蛋白（CP）对Landrace×Yorkshire（LY）和Moo Lath（ML）老挝猪生长性能，car体性状和器官重量的影响。根据完全随机的3×2阶乘（三水平ET×两个品种）安排，将24只cast割的公猪（每个品种12只）分配给治疗，每种治疗4只猪。将猪放在单独的围栏中，以4％干重的体重喂养105天。对照日粮（ET0）以豆粕作为主要CP来源配制，在其他两种日粮中，大豆青豆叶中的CP分别将大豆CP替换为25％（ET25）和50％（ET50）。随着日粮中大豆CP含量的增加，可计算的代谢能摄入量减少，而干物质摄入量（DMI），CP摄入量（CPI），平均日增重（ADG）和饲料转化率（FCR）不受影响。大豆CP替代replacement体时，体重量，背部脂肪厚度和敷料百分比不受大豆CP的影响，而大豆中的蚕豆被CP替代时，器官重量（除脾脏）增加（P <0.001）。 LY猪的DMI，CPI和ADG较高（P <0.001），FCR优于ML（P <0.001）。 LY猪的ML体重量（P <0.001），背脂肪厚度（P <0.001）和器官重量（P <0.05–0.001）比ML猪高。总之，芋头青贮饲料可以替代生长中的老挝LY和ML猪日粮中多达50％的大豆CP，而对生产性能和car体性状没有负面影响。

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