BREED AND AGE OF DAM INFLUENCES ON BEEF SIRE EVALUATIONS FOR EASE OF CALVING

被引:5
作者
HUDSON, GFS [1 ]
SCHAEFFER, LR [1 ]
WILTON, JW [1 ]
机构
[1] UNIV GUELPH,DEPT ANIM & POULTRY SCI,GUELPH N1G 2W1,ONTARIO,CANADA
关键词
D O I
10.4141/cjas80-097
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
收藏
页码:825 / 831
页数:7
相关论文
共 21 条
[1]   GENETIC AND ENVIRONMENTAL-FACTORS AFFECTING INCIDENCE OF DIFFICULT CALVING AND PERINATAL CALF MORTALITY IN ISRAELI-FRIESIAN DAIRY HERDS [J].
BARANAN, R ;
SOLLER, M ;
BOWMAN, JC .
ANIMAL PRODUCTION, 1976, 22 (JUN) :299-310
[2]   CALVING DIFFICULTY AND ITS ASSOCIATION WITH SUBSEQUENT PRODUCTIVITY IN HEREFORDS [J].
BRINKS, JS ;
OLSON, JE ;
CARROLL, EJ .
JOURNAL OF ANIMAL SCIENCE, 1973, 36 (01) :11-17
[3]   CALVING EASE AND GROWTH-RATE OF SIMMENTAL-SIRED CALVES .2. GENETIC PARAMETER ESTIMATES [J].
BURFENING, PJ ;
KRESS, DD ;
FRIEDRICH, RL ;
VANIMAN, D .
JOURNAL OF ANIMAL SCIENCE, 1978, 46 (04) :930-936
[4]  
CADY RA, 1979, J DAIRY SCI, V62, P145
[5]  
HENDERSON CR, 1973, AN BREED GEN S HON J, P10
[6]   STATISTICAL EFFICIENCY IN BULL PROGENY TESTING FOR CALVING DIFFICULTY [J].
HILL, WG .
LIVESTOCK PRODUCTION SCIENCE, 1977, 4 (02) :203-207
[7]   ALTERNATIVE PROGENY TESTING PROGRAMS FOR WEANING WEIGHT AND EASE OF CALVING IN BEEF-CATTLE [J].
HUDSON, GFS ;
SCHAEFFER, LR ;
WILTON, JW .
CANADIAN JOURNAL OF ANIMAL SCIENCE, 1980, 60 (03) :609-620
[8]  
LASTER DB, 1973, J ANIM SCI, V36, P695
[9]  
PHILIPSSON J, 1976, 13 SWED COLL AGR DEP
[10]  
PHILIPSSON J, 1978, 29TH ANN M EAAP STOC