Bulletin of Animal Health and Production in Africa

Log in or Register to get access to full text downloads.

Remember me or Register

DOWNLOAD FULL TEXT Open Access  DOWNLOAD FULL TEXT Subscription or Fee Access

Effect of breed and non-genetic factors on percentage milk composition of dual-purpose cattle in Ashanti region, Ghana

I. Coffie, S. Y. Annor, J. K. Kagya-Agyemang, F. R. K. Bonsu


This study was done to determine the effect of breed and non-genetic factors on percentage milk composition of smallholders’ dual-purpose cattle on-farm in the Ashanti Region. Fresh milk samples from various breeds of cows were assessed for percentage components of protein, fat, lactose, cholesterol, solidnon- fat and total solids using 72 cows from September 2012 to February 2014. The overall percentage milk composition across breed for protein, fat, lactose, cholesterol, solid-non-fat, total solid were 7.7 ± 0.07, 3.0 ± 0.02, 6.4 ± 0.04, 0.65 ± 0.01, 5.7 ± 0.02, 14.3 ± 0.03 respectively. The percentage milk components of dual purpose cows were significantly (p<0.01) influenced by breed and season. Parity and stage of lactation had little (p>0.05) effects on percentage compositon of fresh milk, however, the latter influenced (p<0.01) cholesterol levels. Gudali, and Sanga-Gudali crossbred had similar (p>0.05) percentage protein and fat whereas other breeds differed (p<0.01). Protein and solids-non-fat components were low (p<0.01) in major rains whilst lactose and total solids increased (p<0.01) with increasing intensity of rains. There were important interaction effects among breed, stage of lactation and season in percentage protein, fat, lactose and solid-non-fat components. It was concluded that breed influenced milk compositional yield and producers could select genotypes on production traits within environment comparable to where cows are intended to perform.

Keywords: breed, cows, milk composition, parity, season.

AJOL African Journals Online