中国农业大学学报2013，Vol.18Issue(2)：124-129,6.
蒸汽压片玉米及膨化大豆对奶公犊生长和屠宰性能的影响
Effects of steam-flaked corn and extruded soybean meal on the growth and slaughter performance of dairy bull calves
摘要
Abstract
This experiment aimed to investigate effect of steam-flaked corn and extruded soybean meal on the growth and slaughter performance of calves. In this experiment, thirty-nine 3-day Holstein bull calves fed colostrums were randomly divided into three groups with 13 calves for each group,including milk replacer group (group Ⅰ) ,50% of milk replacer and concentrate group (groupⅡ).and concentrate group (group Ⅲ). The calves of three groups were fed milk at first 30 days,then gradually replaced by the experimental diets. After 150 days, all calves were slaughtered to evaluate the slaughter traits. Data were analyzed using the SAS8.0. The result showed that the average daily gain of group Ⅰ was significantly higher than that of group Ⅱ and group Ⅲ (P<0. 01) during 31-90 days, but with the increasing of age, the average daily gain of group Ⅱ and group Ⅲ were gradually approaching group Ⅰ and eventually exceeded group Ⅰ .The calves weight of groupⅠ , Ⅱ and Ⅲ was 230.18 kg,225.10 kg and 229.45 kg respectively after 150 days,and there was no significant difference for the three groups( P>0.05). For slaughter performance,group Ⅲ had no difference with group Ⅰ (P>0.05) ,and for the body weight at slaughter and the loin eye area in group Ⅲ tended to be higher than group Ⅰ (P<0.1). Feed cost estimating showed that feeding concentrate meal could reduce feed cost significantly( P<0. 01). In summary, the concentrate meal which include steam-flaked corn and extruded soybean could be used as the milk replacer and got better loin eye area and lower production cost notably.关键词
奶公犊/蒸汽压片玉米/膨化大豆/生长性能/屠宰性能Key words
dairy bull calves/ steam-flaked corn/ extruded soybean/ growth performance/ slaughter traits分类
农业科技引用本文复制引用
刘萍,孟庆翔,解祥学,李锡智,赵金维,崔振亮,任丽萍..蒸汽压片玉米及膨化大豆对奶公犊生长和屠宰性能的影响[J].中国农业大学学报,2013,18(2):124-129,6.基金项目
国家肉牛牦牛产业体系(CARS-38) （CARS-38）
