动物营养学报2019，Vol.31Issue(10)：4737-4745,9.DOI:10.3969／j.issn.1006⁃267x.2019.10.039
虫草类真菌饲料添加剂对奶牛生产性能和肠道完整性的影响
Effects of Cordyceps Fungus Feed Additives on Performance and Intestinal Integrity of Dairy Cows
摘要
Abstract
This experiment was aimed to investigate the effects of cordyceps fungus feed additives on perform?ance and intestinal integrity of dairy cows. One hundred and eighty Holstein dairy cows in mid?lactation with similar parities and days of lactation were randomly allocated to 2 groups with 90 cows in each group. Cows in the control group were fed a basal diet, and the others in trial group were fed the basal diet+30 g／( d·head) cordyceps fungus feed additives. The experiment lasted for 70 days. The results showed as follows: 1 ) the means of milk yield, milk fat rate, milk protein rate and milk total solids content of trial group were increased by 0.83%, 2.61%, 1.68% and 2.01% compared with the control group ( P＞0.05) , and the means of lactose rate and non?fat solids content of trial group were significantly higher than those of the control group ( P＜0.05). 2) The mean of milk somatic cell count of trial group was significantly higher than that of the control group ( P＜0.05). 3) At day 70 of the trial, the plasma D?lactic acid content was significantly lower than that at day 1 and day 42 ( P＜0.05). 4) The apparent digestibility of dry matter, crude protein, crude fat, neutral detergent fiber and acid detergent fiber of trial group had no significant difference with the control group ( P＞0.05). In conclusion, dietary added cordyceps fungus feed additives can significantly improve the lactose rate and non?fat solids content, significantly decrease the milk somatic cell count, improve the milk quality and in?testinal integrity of dairy cows.[ Chinese Journal of Animal Nutrition, 2019, 31(10) :4737?4745]关键词
虫草类真菌饲料添加剂/奶牛/生产性能/体细胞数/肠道完整性/表观消化率Key words
cordyceps fungus feed additives/dairy cows/performance/somatic cell count/intestinal integri⁃ty/apparent digestibility分类
农业科技引用本文复制引用
王轶群,李淦,郭江鹏,温富勇,王占彬,顾宪红..虫草类真菌饲料添加剂对奶牛生产性能和肠道完整性的影响[J].动物营养学报,2019,31(10):4737-4745,9.基金项目
北京市奶牛产业创新团队( BAIC06⁃2019) （ BAIC06⁃2019）
中国农业科学院科技创新工程( ASTIP⁃IAS07) （ ASTIP⁃IAS07）
