1Dairy Cattle Breeding Division, National Dairy Research Institute, Karnal, Haryana, 132001, India
2Dairy Cattle Nutrition Division, National Dairy Research Institute, Karnal, Haryana, 132001, India
Receive Date: 14 June 2011,
Revise Date: 12 August 2011,
Accept Date: 13 October 2011
The present investigation aimed to conduct a genetic study of dairy cattle and buffalo bulls based on economic traits and their phenotypic correlation. The means of various economic traits in both the species are presented. Cattle bulls reported a better libido score, Flehmen response, requirement of mounting stimulus and semen volume, conception rate and expected predicted difference for milk production. Significant differences were observed between cattle and buffalo in growth traits (birth weight, 3 months body weight, 6 months body weight), reproduction traits (individual semen motility, post thaw semen motility and requirement of mounting stimulus). Association studies conducted among various growth, reproduction and production traits revealed that, a positively high and significant associationexisted among growth traits and individual motility with the number of semen doses per collection in crossbred bulls. Three month body weight was associated significantly with expected predicted difference (P<0.05) in crossbred bulls. However in the case of Murrah bulls, a significantly high correlation wasobserved among body weights at birth and at three months of age.
Adwani R. (1992). Effect of certain managemental practices on temperament and libido of young bulls. M S. Thesis. National Dairy Research Institute (Deemed University), Karnal, India. Anonymous (1999). Annual Report (1999-2000), National Dairy Research Institute, Karnal, India. Anonymous (2009). Minimum Standards for Progeny Testing. Ministry of Animal Husbandry, Dairying and Fisheries. Banik S. )2001(. Direct and indirect effects of different characters on milk production of Murrah buffaloes: A path analysis approach. MS. Thesis. National Dairy Research Institute (Deemed University), Karnal, India. Basu S.B. (1985). Genetic Improvement of Buffaloes. Kalyani Publishers, New Delhi, India. Biswas T.K., Bhattacharya T.k., Narayan A.D., Badola S., Kumar P. and Sharma A. (2003). Growth hormone gene polymorphism and its effect on birth weight in cattle and buffalo. Asian Aust. J.16(4), 494-497. Chenoweth P.J. (1981). Libido and mating behaviour in bulls, boars and rams: A review. Theriogenology. 16, 155-177. Demeke S., Neser F.W.C. and Schoeman S.J. (2003). Variance components and genetic parameters for early growth traits in a mixed population of purebred Bos indicus and crossbred cattle. Livest. Prod. Sci. 84, 11-21. Jain J.P. (1992). Statistical Techniques in Quantitative Genetics. Hindustan Publishing Corporation. Delhi. Livestock Census. (2003). 17th Indian Livestock Census: All IndiaSummary Report. Government of India, Ministry of Agriculture, Department of Animal Husbandry and Dairying, Krishi Bhavan. New Delhi. Meyer K., Hammond K., Mackinnon M.J. and Parnell P.F. (1991). Estimates of covariances between reproduction and growth in Australian beef cattle. J. Anim. Sci. 69(9), 3533-3543. Pal A., Chakravarty A.K., Bhattacharya T.K., Joshi B.K. and Sharma A. (2004a). Detection of Polymorphism ofgrowth hormone gene for the analysis of relationship between allele type and growth traits in Karan Fries cattle.AsianAust. J. Anim. Sci.17(9), 1334-1337. Pal A., Chakravarty A.K. and Bhattacharya T.K. (2004b). Association of genetic polymorphism of growth hormone gene with some sexual behavioral characteristics in dairy animals. Pp. 3-5 inProc. 4th Indian Veterinary Congress, IVRI, Izatnagar. Pal A. and Chakravarty A.K. (2004). Marker genotype of growth hormone gene for assessing the libido of crossbred dairy bulls. National Symposium on Conservation and Propagation of Indigenous Breeds of Cattle and Buffaloes. Pantnagar, Uttaranchal. Pal A., Chakravarty A.K., Bhattacharya T.K. and Sharma A. (2005). Polymorphism of growth hormone gene and its association with expected milk production traits in dairy bulls. J. Appl. Anim. Res. 27(9), 29-33. Pal A., Chakravarty A.K. and Chatterjee P.N. (2006). PCR-RFLP of growth hormone gene and its association with semen traits in buffalo and crossbred cattle. Pp. 22-28 inProc. 6th Indian Veterinary Congress, OUAT, Bhubaneswar, Orissa. Panwar P.S. and Nagpaul P.K. (1989). Behaviour temperament and libido studies in KS bulls. Indian J. Dairy Sci. 42(4), 728-732. Sharma R.K., Singh P., Singh S. and Singh I.(2003). Sexual behaviour of cow and buffalo bull : A review. Indian BuffaloJ.1(1), 46-49. Snedecor W. and Cochran W.G. (1967). Statistical Methods. 6th Ed., Oxfordand IBH Publishing Co., Kolkata, India. Susan A., Knights R., Baker L., Gianola D. and Gibb J.B. (1984). Estimates of heritabilities and of genetic and phenotypic correlations among growth and reproductive traits in yearling Angus bulls. J. Anim. Sci. 58, 887-893.