中国荷斯坦奶牛发情后期卵巢大小与重量相关性分析  

Correlation Analysis of Ovarian Size and Ovarian Weight in Chinese Holstein Cows of Late Estrus

作　　者：蓝康澍 李洁 牛至寒 沈成龙 王勇胜[1] LAN Kang-shu;LI Jie;NIU Zhi-han;SHEN Cheng-long;WANG Yong-sheng(College of Veterinary Medicine,Northwest A&F University,Yangling,Shaanxi,712100,China;College of Animal Science and Technology,Northwest A&F University,Yangling,Shaanxi,712100 China)

机构地区：[1]西北农林科技大学动物医学院,陕西杨凌712100 [2]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《动物医学进展》2023年第12期88-92,共5页Progress In Veterinary Medicine

基　　金：宁夏回族自治区重点研发项目(2021BEF01001)。

摘　　要：为进一步研究牛卵巢的发育规律,明确卵巢长、宽、高与卵巢重量的相关性,建立卵巢性状间最优回归方程,对389头处于发情后期中国荷斯坦奶牛的卵巢进行描述统计,并进行了相关性与回归性分析,建立了卵巢重量与卵巢长、宽、高的最优回归方程。结果显示,卵巢长、宽和高与卵巢重量呈显著相关,其中卵巢高与卵巢重量相关性最强(r=0.480)。通径分析结果显示,卵巢长、宽、高主要通过直接作用影响卵巢重量,其中卵巢高对卵巢重量的直接作用最强(P=0.422)。以卵巢重量为因变量,卵巢长、宽、高为自变量建立的最优回归方程为y=0.192x 1+0.291x 2+0.321x 3-11.335(R 2=0.715,P<0.01)。To investigate the developmental regularity of bovine ovaries,clarify the correlation between ovarian length,width,height,and weight,and establish the optimum regression equation,our research measured the length,width,height,and weight of ovaries from 389 Chinese Holstein cows in the late estrus stage.The correlation analysis and regression analysis were conducted,and the optimal regression equation of ovarian weight and ovarian length,width,and height was established.The results showed that ovarian length,width,and height were significantly correlated with ovarian weight,among which ovarian height had the strongest correlation with ovarian weight(r=0.480).The results of path analysis showed that the length,width,and height of the ovary mainly affected the weight of the ovary through a direct effect,and the height of the ovary had the strongest direct effect on the weight of the ovary(P=0.422).The optimal regression equation established with ovarian weight as the dependent variable and ovarian length,width and height as independent variables is:y=0.192x 1+0.291x 2+0.321x 3-11.335(R=0.715,P<0.01).

关 键 词：中国荷斯坦奶牛 卵巢大小 卵巢重量 相关性分析 

分 类 号：S852.163[农业科学—基础兽医学] S857.2[农业科学—兽医学]