THE NATIONAL DAIRY HEIFER EVALUATION PROJECT - A PROFILE OF HEIFER MANAGEMENT-PRACTICES IN THE UNITED-STATES

被引:55
作者
HEINRICHS, AJ
WELLS, SJ
HURD, HS
HILL, GW
DARGATZ, DA
机构
[1] USDA,VET SERV,ANIM PLANT HLTH INSPECT SERV,CTR EPIDEMIOL & ANIM HLTH,FT COLINS,CO 80521
[2] USDA,VET SERV,ANIM PLANT HLTH INSPECT SERV,CTR NATL ANIM HLTH MONOTIRONG SYST,FT COLLINS,CO 80521
关键词
CALF MANGEMENT; HEIFER MANAGEMENT; HEALTH; NATIONAL SURVEY;
D O I
10.3168/jds.S0022-0302(94)77096-X
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The National Dairy Heifer Evaluation Project was a cooperative, USDA-sponsored project involving state agricultural departments, the Cooperative Extension Service, the National Agricultural Statistics Service, and the Animal and Plant Health Inspection Service. A series of retrospective and prospective descriptive surveys using a multiple list and area frame sampling technique were conducted. Information collected pertained primarily to dairy neonates and replacement heifers. Much of the study was related to observational information on health and management characteristics that can be related to the animals' long-term physical and economic performance. The data reflect herds representing 78% of the national dairy cow population. Average herd size was 86 milking and dry cows and 66 heifers. Many characteristics of these herds reflect accepted and recommended practices in the area of dairy replacement management and nutrition. Data summarized in this national study can be utilized to evaluate the impact of management practices on dairy operations.
引用
收藏
页码:1548 / 1555
页数:8
相关论文
共 24 条
[1]   AN EVALUATION OF MANAGEMENT-PRACTICES USED BY SOUTHERN DAIRY FARMERS [J].
CARLEY, DH ;
FLETCHER, SM .
JOURNAL OF DAIRY SCIENCE, 1986, 69 (09) :2458-2464
[2]  
CROWLEY J, 1991, N CENTRAL REG PUBL, V205
[3]  
FERRIS TA, 1975, 271 MICH STAT U RES
[4]  
FORD BL, 1986, AGR ECON RES, V38, P1
[5]   CALF MANAGEMENT-PRACTICES AND HEALTH MANAGEMENT DECISIONS ON LARGE DAIRIES [J].
GOODGER, WJ ;
THEODORE, EM .
JOURNAL OF DAIRY SCIENCE, 1986, 69 (02) :580-590
[6]   CALF MORTALITY [J].
HARTMAN, DA ;
EVERETT, RW ;
SLACK, ST ;
WARNER, RG .
JOURNAL OF DAIRY SCIENCE, 1974, 57 (05) :576-578
[7]   SURVEY OF CALF AND HEIFER HOUSING ON PENNSYLVANIA DAIRY FARMS [J].
HEINRICHS, AJ ;
GRAVES, RE ;
KIERNAN, NE .
JOURNAL OF DAIRY SCIENCE, 1987, 70 (09) :1952-1957
[8]  
HEINRICHS AJ, 1990, 385 ENN STAT U EXT C
[9]   CALF MORTALITY IN VIRGINIA DAIRY-HERD IMPROVEMENT HERDS [J].
JAMES, RE ;
MCGILLIARD, ML ;
HARTMAN, DA .
JOURNAL OF DAIRY SCIENCE, 1984, 67 (04) :908-911
[10]   MANAGEMENT FACTORS ASSOCIATED WITH CALF MORTALITY IN SOUTH-CAROLINA DAIRY HERDS [J].
JENNY, BF ;
GRAMLING, GE ;
GLAZE, TM .
JOURNAL OF DAIRY SCIENCE, 1981, 64 (11) :2284-2289