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Gross responses and apparent ileal digestibility of amino acids and minerals in broiler chicken fed vegetable-based starter diets supplemented with microbial enzymes

机译:补充微生物酶的以蔬菜为基础的日粮饲喂肉鸡的氨基酸和矿物质的总应答和表观回肠消化率

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This study was conducted to investigate the effects of diet and exogenous enzymes on growth responses and micronutrient digestibility of broilers. Day-old broilers (n = 256) were distributed into a 2 x 2 factorial design and were fed on two basal diets: soybean (T1) or canola (T2) meals as such, or supplemented with enzymes up to 21 days. Feed intake (FI) and live weight (LW) to 21 days on the T2 diet was higher (P 1 than on T2 at 21 days. Enzymes generally improved (P 2, but lysine digestibility was higher (P 1 at 21 days. Histidine, threonine, lysine, valine, isoleucine, and phenylalanine digestibility was improved (P 0.05) by diet, but enzymes increased (P 2, whereas Ca digestibility was greater (P 1 diet. Broilers' growth responded positively to enzyme diets, probably due to improvement in nutrient digestibility.
机译:进行这项研究以调查饮食和外源酶对肉鸡生长反应和微量营养元素消化率的影响。将日龄肉鸡(n = 256)分配到2 x 2因子设计中,并以两种基本日粮喂养:大豆(T 1 )或双低油菜籽(T 2 )等餐点,或最多补充21天的酶。 T 2 日粮中21天的摄食量(FI)和活重(LW)在21天时高于T 2 (P 1 )。酶一般改善(P 2 ,但赖氨酸消化率更高(P 1 ),在第21天,饮食改善组氨酸,苏氨酸,赖氨酸,缬氨酸,异亮氨酸和苯丙氨酸的消化率(P 0.05),但是酶的增加(P 2 ,而钙的消化率更高(P 1 饮食)。肉鸡的生长对酶的饮食有积极的反应,这可能是由于养分消化率的提高。

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