CALCULATING SELECTED REPRODUCTIVE INDEXES - RECOMMENDATIONS OF THE AMERICAN-ASSOCIATION-OF-BOVINE-PRACTITIONERS

被引：56

作者：

FETROW, J

MCCLARY, D

HARMAN, R

BUTCHER, K

WEAVER, L

STUDER, E

EHRLICH, J

ETHERINGTON, W

GUTERBOCK, W

KLINGBORG, D

RENEAU, J

WILLIAMSON, N

机构：

[1] LILLY RES LABS,GREENFIELD,IN 46140

[2] HERD TECHNOL,CHINO,CA 91710

[3] DAIRY RECORDS PROC CTR,RALEIGH,NC 27695

[4] UNIV CALIF DAVIS,VET MED TEACHING & RES CTR,TULARE,CA 93274

[5] DAIRY VET GRP,ARGYLE,NY 12809

[6] UNIV GUELPH,ONTARIO VET COLL,DEPT POPULAT MED,GUELPH N1G 2W1,ONTARIO,CANADA

[7] UNIV MINNESOTA,DEPT ANIM SCI,ST PAUL,MN 55108

[8] UNIV MINNESOTA,DEPT LARGE ANIM CLIN SCI,ST PAUL,MN 55108

来源：

JOURNAL OF DAIRY SCIENCE | 1990年 / 73卷 / 01期

关键词：

American Association of Bovine Practitioners; reproduction indices; reproductive performance;

D O I：

10.3168/jds.S0022-0302(90)78649-3

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

This paper presents the report of a committee of the American Association of Bovine Practitioners recommending methods for calculating several basic indices of reproductive performance on dairy farms. Indices presented are: overall reproductive performance, intensity of estrus detection, conception efficiency, pregnancy losses. reproductive culling, and reproductive efficiency in herds using a bull. Data from a hypothetical dairy herd are provided and example indices are calculated. © 1990, American Dairy Science Association. All rights reserved.

引用

页码：78 / 90

页数：13