蛋白酶补充剂对生长育肥猪生长性能、血液成分及胴体特性的影响。
Effects of protease supplementation on growth performance, blood constituents, and carcass characteristics of growing-finishing pigs.
作者信息
Min Yejin, Choi Yohan, Kim Younghwa, Jeong Yongdae, Kim Doowan, Kim Joeun, Jung Hyunjung, Song Minho
机构信息
Swine Science Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Korea.
Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.
出版信息
J Anim Sci Technol. 2019 Jul;61(4):234-238. doi: 10.5187/jast.2019.61.4.234. Epub 2019 Jul 31.
Abstract
This experiment was conducted to evaluate the effects of dietary protease on growth performance, blood constituents, and carcass characteristics of growing-finishing pigs. A total of 48 growing pigs (initial body weight, 34.8 ± 0.62 kg) were randomly assigned to 2 dietary treatments (6 pigs/pen; 4 replicates/treatment). The treatments were a diet based on corn and soybean meal (CON) and CON supplemented with 0.01 % of protease (PRO). Pigs were fed respective dietary treatments with a 2-phase feeding program for 12 weeks. Pigs fed PRO had higher average daily gain (ADG; phase I, 866.38 vs. 821.75 g/d; overall, 910.96 vs. 866.30 g/d; < 0.05) and gain to feed ratio (G:F; phase I, 0.345 vs. 0.363 g/g; < 0.05) than those fed CON. However, there were no differences on blood constituents and carcass characteristics between CON and PRO of growing-finishing pigs. In conclusion, dietary protease supplementation in the typical diet for growing-finishing pigs improved growth rate.
摘要
本试验旨在评估日粮蛋白酶对生长育肥猪生长性能、血液成分和胴体特性的影响。选取48头生长猪（初始体重34.8±0.62 kg），随机分为2种日粮处理组（每栏6头猪；每个处理4个重复）。处理组分别为以玉米和豆粕为基础的日粮（对照组）和添加0.01%蛋白酶的对照组日粮（蛋白酶组）。采用两阶段饲养方案，给猪饲喂各自的日粮处理，为期12周。与饲喂对照组日粮的猪相比，饲喂蛋白酶组日粮的猪平均日增重（ADG；第一阶段，866.38对821.75 g/d；全期，910.96对866.30 g/d；<0.05）和料重比（G:F；第一阶段，0.345对0.363 g/g；<0.05）更高。然而，生长育肥猪的对照组和蛋白酶组在血液成分和胴体特性方面没有差异。总之，在生长育肥猪的典型日粮中添加蛋白酶可提高生长速度。
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