Effects of local concentrate and weaning age on the performance of crossbred calves
Thirty calves were allocated to three diets and two weaning ages (3×2 factorial) to study the effects of local concentrates (A (T1) and B (T2)) and weaning age (9 and 12 weeks) on dry matter intake, growth and costs of gain. All calves were fed whole milk and hay and either supplemented with the concentrates or unsupplemented (T3). Mean total dry matter intake (1.53 vs 0.93 kg/d) and growth rate (0.31 vs 0.23 kg/d) were higher (P<0.05), whereas the costs of gain (2123 vs 2696 shillings/kg gain) were lower for supplemented than unsupplemented calves. Early weaned calves had lower (0.26 vs 0.30 kg/d) gain than late weaned. It is concluded that weaning at 12 weeks and supplementing local concentrates improve performance of calves.
calf concentrate intake growth costs
G.H.Laswai H.L.N.Lyimo L.A.Mtenga A.E.Kimambo D.M.Mgheni T.Hvelplund J.Madsen M.R.Weisbjerg
Sokoine University of Agriculture, P.O.Box 3004, Morogoro, Tanzania;Department of Animal Science and Ministry of Livestock Development, P.O.Box 2066, Dar es Salaam, Tanzania Sokoine University of Agriculture, P.O.Box 3004, Morogoro, Tanzania University of Aarhus, P.O.Box 50, DK-8830 Tjele, Denmark Faculty of Agricultural Sciences, Universit
国际会议
The 7tb International Symposium on the Nutrition of Herbivores(ISNH-7)(第七届国际草食动物营养研讨会)
北京
英文
919-923
2007-09-16（万方平台首次上网日期，不代表论文的发表时间）