ECONOMIC CONSEQUENCES OF REPLACING COWS WITH GENETICALLY IMPROVED HEIFERS

被引：39

作者：

ALLAIRE, FR ^{[1
]}

机构：

[1] OHIO AGR RES & DEV CTR,COLUMBUS,OH 43210

来源：

JOURNAL OF DAIRY SCIENCE | 1981年 / 64卷 / 10期

关键词：

D O I：

10.3168/jds.S0022-0302(81)82801-9

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

引用

页码：1985 / 1995

页数：11

共 12 条

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[3]

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YOUNG, CW ;

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[5] THEORETICAL ASPECTS OF CULLING AND SELECTION IN DAIRY-CATTLE [J].

HILL, WG .

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[6]

HOPKINS JA, 1979, FINANCIAL MANAGEMENT

[7] ECONOMIC EVALUATION OF REPLACEMENT RATES IN DAIRY HERDS .2. SELECTION OF COWS DURING THE 1ST LACTATION [J].

KORVER, S ;

RENKEMA, JA .

LIVESTOCK PRODUCTION SCIENCE, 1979, 6 (01) :29-37

[8] RELATING PROGENY SUPERIORITY TO GENETIC TREND IN CATTLE [J].

MILLER, P .

JOURNAL OF ANIMAL SCIENCE, 1969, 28 (05) :577-&

[9]

NORMAN HD, 1974, ARSNE40 US DEP AGR A

[10] EFFECT OF FEMALE CULLING AND AGE DISTRIBUTION OF DAIRY-HERD ON PROFITABILITY [J].

PEARSON, RE ;

FREEMAN, AE .

JOURNAL OF DAIRY SCIENCE, 1973, 56 (11) :1459-1471

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