Type

Journal Article

Authors

Patrick J. Caffrey
Michael J Drennan
Mark McGee

Subjects

Veterinary

Topics
suckler cows milk yield holstein friesian weight gain genotype live weight calf performance weaning weight

Effect of suckler cow genotype on milk yield and pre-weaning calf performance (2005)

Abstract Milk yield and pre-weaning calf performance of spring-calving Charolais (C) and Beef ×Holstein-Friesian (BF) cows was compared over 3 experiments. Cows were individuallyoffered a restricted allowance of grass silage pre partum in Experiments 1 and 2 andad libitum silage in Experiment 3. In all three experiments cows received silage toappetite for the first 34 (s.d. 16.2) days of lactation. In Experiments 1 and 2, cows and calves were grazed together during the subsequent grazing seasons. The daily milkyield of C cows was significantly lower from parturition until turnout to pasture (1.8 to2.5 kg/day lower) and subsequently at pasture (4.5 and 3.1 kg/day lower in Experiments 1 and 2, respectively) than that of BF cows. Calves from C cows consumed more (P <0.01) concentrate creep feed during the indoor period than calves from BF cows.Compared to calves from BF cows, pre-weaning daily live-weight gain was lower forcalves from C cows in Experiments 1 (P < 0.05) and 2 (P = 0.06). The pre-weaninggrowth response per 1 kg increase in milk yield was greater for calves from C cows thanthose from BF cows. In conclusion, compared to BF cows the milk yield of C cows waslower resulting in increased calf concentrate intake indoors and lower pre-weaning calf daily live-weight gains.
Collections Ireland -> Teagasc -> Livestock Systems
Ireland -> Teagasc -> IJAFR, volume 44, 2005
Ireland -> Teagasc -> Animal & Grassland Research & Innovation Programme
Ireland -> Teagasc -> Irish Journal of Agricultural & Food Research

Full list of authors on original publication

Patrick J. Caffrey, Michael J Drennan, Mark McGee

Experts in our system

1
Patrick J. Caffrey
Teagasc
Total Publications: 16
 
2
Mark McGee
Teagasc
Total Publications: 81