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Data Collecting for Genetic Improvement in Beef, Dairy cattle and Buffalo. Wuttigrai Boonkum , Ph.D Http://ags.kku.ac.th/elearning/137451. Beef & Dairy & Buffalo Cattle: 1.Growth performance traits. Birth weight Weaning weight Yearling weight ADG (average daily gain) - PowerPoint PPT Presentation
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Wuttigrai Boonkum, Ph.DHttp://ags.kku.ac.th/elearning/137451
DATA COLLECTING FOR GENETIC IMPROVEMENT IN BEEF, DAIRY CATTLE AND BUFFALO
Birth weightWeaning weightYearling weightADG (average daily gain)FCR (feed conversion ratio)FE (feed efficiency)ADFI (average daily feed intake)
BEEF & DAIRY & BUFFALO CATTLE:1.GROWTH PERFORMANCE TRAITS
BEEF & DAIRY & BUFFALO CATTLE:3.PRODUCTION TRAITS
Milk yield
Milk composition (milk fat, milk protein, SCC)
days open (optimum point at 60 d)
Calving interval (Avg = 380 d in cattle, Avg = 420 d in buffalo)
Gestation length (Avg = 285 d in cattle, Avg = 315 d in buffalo)
services per conception (should be less than 2 times)
conception rate or pregnancy rate (40% in Heifer, 20% in cow)
semen quality (progressive motility, abnormal/normal)
calving ease
Testis size
BEEF & DAIRY & BUFFALO CATTLE:4.REPRODUCTIVE TRAITS
BEEF & DAIRY & BUFFALO CATTLE:5.TYPE TRAITS
Frame 15% (all skelaton)
Dairy strength 25% (skin, neck, rib)
Rear feet and Legs = 20%
Udder = 40%