动物营养学报2018，Vol.30Issue(2)：743-754,12.DOI:10.3969/j.issn.1006-267x.2018.02.040
含棕榈仁粕、油茶籽粕或茶籽粕饲粮对断奶犊牛消化代谢及血清生化指标的影响
Effects of Diets Containing Palm Kernel Meal, Oil Tea Seed Meal and Tea Seed Meal on Digestion, Metabolism and Serum Biochemical Indexes of Weaned Calves
摘要
Abstract
The purpose of this study was to investigate the effects of diets containing palm kernel meal,oil tea seed meal and tea seed meal on digestion,metabolism and serum biochemical indexes of weaned calves.Fortyeight healthy weaned (46±3)-day-old male calves weighted (79.5±0.79) kg were randomly divided into four groups with twelve calves each.Calves were fed four different total mixed rations,which containing soybean meal (group A),soybean meal+palm kernel meal (group B),soybean meal+oil tea seed meal (group C) and soybean meal+tea seed meal (group D),respectively.The rations were adjusted to equal energy and protein contents.The supplemental levels of palm kernel meal,oil tea seed meal and tea seed meal in diet were 5％.The experiment lasted for 104 d with 14 d of adaptation period and 90 d of formal period.Feed intake was recorded everyday,and body weight of calves was measured every 30 d;digestion and metabolism experiment was carried out to determine nutrient digestibility and metabolic rate at 90 and 150 days of age using total feces collection method,respectively;blood of calves was collected from jugular vein every 30 d to determine serum biochemical indexes.The results showed as follows:1) average daily gain and dry matter intake of the whole period in group B were significantly higher than those in groups C and D (P＜0.05),and there was no significant difference between groups A and B (P＜0.05).Feed/gain in group D was significantly higher than that in the other 3 groups (P＜0.05).2) At 150 days of age,the apparent digestibility of dry matter in groups A and B was significantly higher than that in group D (P＜0.05);the apparent digestibility of neutral detergent fiber in group A was significantly higher than that in the other 3 groups (P＜0.05);the apparent digestibility of acid detergent fiber in group A was significantly higher than that in groups B and D (P＜0.05);digestive energy in groups A,B and C was significantly higher than that in group D (P＜0.05);the apparent digestibility and deposition rate of nitrogen in group B were significantly higher than those in group D (P＜0.05),and had no significant difference with those in group A (P＞0.05).3) At 61 to 150 days of age,serum glucose concentration in group B was significantly higher than that in groups A and C (P＜0.05),serum triglyceride concentration in group A was significantly lower than that in group D (P＜0.05),and serum urinary nitrogen concentration in group C was significantly higher than that in groups A,B,D (P＜0.05);at 90 days of age,serum total protein concentration in groups B and C was significantly higher than that in group A (P＜0.05);at 150 days of age,serum globulin concentration in group A was significantly higher than that in group C (P＜0.05).To sum up,when 5％ palm kernel meal is added to diet,the growth of Charolais crossbred calves can be the same as those fed full soybean meal diet,the diet is easy to digest and utilize,serum biochemical indexes are in normal range,and of calves' health are not affected;the additions of 5％ tea seed meal and oil tea seed meal decrease feed intake,digestive nitrogen,apparent digestibility of nitrogen,and affect growth and development of calves.关键词
夏杂犊牛/棕榈仁粕/油茶籽粕/茶籽粕/血清生化指标/消化代谢Key words
Charolais crossbred calves/palm kernel meal/oil tea seed meal/tea seed meal/serum biochemical index/digestion and metabolism分类
农业科技引用本文复制引用
樊庆山,毕研亮,刁其玉,成述儒,付彤,屠焰..含棕榈仁粕、油茶籽粕或茶籽粕饲粮对断奶犊牛消化代谢及血清生化指标的影响[J].动物营养学报,2018,30(2):743-754,12.基金项目
公益性行业(农业)科研专项经费“南方地区幼龄草食畜禽饲养技术研究”(201303143) （农业）
河南省科技开放合作项目“肉用犊牛早期断奶能量需要研究及早期断奶犊牛料的开发”(152106000029) （152106000029）
