FEED-INTAKE, BODY-WEIGHT AND MILK-PRODUCTION - GENETIC-ANALYSIS OF DIFFERENT MEASUREMENTS IN LACTATING DAIRY HEIFERS

被引：24

作者：

VANELZAKKER, PJM ^{[1
]}

VANARENDONK, JAM ^{[1
]}

机构：

[1] WAGENINGEN UNIV AGR,DEPT ANIM BREEDING,6700 AH WAGENINGEN,NETHERLANDS

来源：

LIVESTOCK PRODUCTION SCIENCE | 1993年 / 37卷 / 1-2期

关键词：

FEED INTAKE; FEED CONVERSION; GENETIC PARAMETER; SELECTION;

D O I：

10.1016/0301-6226(93)90063-N

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Phenotypic and genetic correlations between measurements of feed intake, body weight and production within and between 4 periods in the first 15 weeks of lactation have been estimated. Measurements were available on 358 dairy heifers during 2 week periods starting at 2, 5, 9 and 13 weeks after calving. Heifers were progeny of 38 sires. The diet consisted of 6 kg concentrates and roughage ad libitum. Genetic parameters were estimated by REML fitting an animal model.

引用

页码：37 / 51

页数：15

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