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Genetic and phenotypic parameters of body weights in Bikaneri sheep (Magra strain)

Published online by Cambridge University Press:  02 September 2010

S. C. Chopra  and
R. M. Acharya
S. C. Chopra
Affiliation:
Department of Animal Breeding, Haryana Agricultural University, Hissar (Haryand), India
R. M. Acharya
Affiliation:
Department of Animal Breeding, Haryana Agricultural University, Hissar (Haryand), India
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Summary

Heritabilities of birth, weaning, 6-month and yearling weights adjusted for significant non-genetic factors and obtained from half-sib correlations were 0·10±0·03, 0·22±0·05, 0·37±0·09 and 0·48±0·07 respectively. Genetic correlations of birth weight with later weights were small and negative except with weaning weight. Genetic correlations among other weights were large and positive. The phenotypic correlations among these weights were positive and statistically highly significant.

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Type
Research Article
Information
Animal Production , Volume 13 , Issue 2 , May 1971 , pp. 343 - 347
Copyright
Copyright © British Society of Animal Science 1971

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References

REFERENCES

Acharya, R. M. 1962. Selecting for breeding value of Targhee ram lambs at an early age. M.S. Thesis, Ohio State Univ., Columbus, Ohio.Google Scholar
Acharya, R. M. and Bawa, S. S., 1971. Milk production of ewes and its relationship with pre-weaning growth of lambs. Indian J. Anim. Sci. (In press).Google Scholar
Basset, J. W., Cartwright, T. C., Van Horn, J. L. and Wilson, F. S. 1967. Estimates of genetic and phenotypic parameters of weanling and yearling traits in range Rambouillet ewes. J. Anim. Sci. 26: 254–260.CrossRefGoogle Scholar
Bichard, M. and Yalçin, B. C. 1964. Crossbred sheep production. III. Selection for growth rate and carcass attributes in the second-cross lamb. Anim. Prod. 6: 179–187.Google Scholar
Bonsma, F. N. 1939. Factors influencing the growth and development of lambs with special reference to crossbreeding Merino sheep for fat lamb production in South Africa. Publ. Univ. Pretoria, Ser. I: Agric., No. 48.Google Scholar
Botkin, M. P. 1964. Postweaning performance in Columbia and Corriedale lambs. J. Anim. Sci. 23: 132–135.CrossRefGoogle Scholar
Butcher, R. L., Dunbar, R. S. Jr, and Welch, J. A. 1964. Heritabilities of and correlations between lamb birth weight and 140-day weight. J. Anim. Sci. 23: 12–15.CrossRefGoogle Scholar
Chopra, S. C. and Acharya, R. M. 1971. A note on non-genetic factors affecting body weights of Magra lambs. Anim. Prod. 13: 349–351.Google Scholar
Dalton, D. C. 1962. Characters of economic importance in Welsh Mountain sheep. Anim. Prod. 4: 269–278.Google Scholar
Dass, G. S. 1968. Inheritance of pre-weaning growth in Bikaneri sheep. M.Sc. Thesis, Punjab Agric. Univ., Hissar, Haryana, India.Google Scholar
Dass, G. S. and Acharya, R. M. 1970. Growth of Bikaneri sheep. J. Anim. Sci. 31: 1–4.CrossRefGoogle Scholar
Felts, V. L., Chapman, A. B. and Pope, A. L. 1957. Estimates of genetic and phenotypic parameters for use in a farm flock ewe selection. J. Anim. Sci. 16: 1048 (Abstr.).Google Scholar
Fisher, R. A. 1949. Design of Experiments. 5th ed.Hafner Publishing Co., New York.Google Scholar
Harrington, R. B., Brothers, D. G. and Whiteman, J. V. 1962. Heritability of gain of lambs measured at different times and by different methods. J. Anim. Sci. 21: 78–81.CrossRefGoogle Scholar
Karam, H. A. 1959. Birth, weaning and yearling weights of Rahmani sheep. 1. Effects of some environmental factors. II. Heritability estimates and correlations. Emp. J. exp. Agric. 27: 313–323.Google Scholar
Karam, H. A., Chapman, A. B. and Pope, A. L. 1953. Selecting lambs under farm conditions. J. Anim. Sci. 12: 148–164.CrossRefGoogle Scholar
Kaushik, S. N. and Singh, B. P. 1968. Factors affecting birth weight of crossbred lamb. Indian vet. J. 45: 752–759.Google Scholar
Knothe, A. and Staliński, Z. 1960. [The correlation between birth weight and weaning weight in Polish Merinos]. Roczn. Nauk. rol., B, 76: 459–474. (Anim. Breed. Abstr. 29: No. 2166).Google Scholar
Malik, R. C. 1970. Pre-weaning and post-weaning growth in Lohi and Nali breeds of sheep and in their crosses with Nellore and Mandya. M.Sc. Thesis, Haryana Agric. Univ., Hissar, Haryana, India.Google Scholar
McNaughton, W. N. 1956. Repeatability and heritability of birth, weaning and shearling weights among range sheep in Canada. Ph.D. Thesis, Iowa Sta. Coll., Ames, Ia.Google Scholar
Morley, F. H. W. 1955. Selection for economic characters in Australian Merino sheep. V. Further estimates of phenotypic and genetic parameters. Aust. J. agric. Res. 6: 77–90.CrossRefGoogle Scholar
Ragab, M. T., Asker, A. A. and Kadi, M. R. 1953. Genetic factors affecting weights of Ossimi lambs. Emp. J. exp. Agric. 21: 304–307.Google Scholar
Robertson, A. 1959. The sampling variance of the genetic correlation coefficient. Biometrics 15: 469–485.CrossRefGoogle Scholar
Swiger, L. A., Harvey, W. R., Everson, D. O. and Gregory, K. E. 1964. The variance of intra-class correlation involving groups within one observation. Biometrics 20: 818–826.CrossRefGoogle Scholar
Vesely, J. A. and Slen, S. B. 1961. Heritabilities of weaning weight, yearling weight and clean fleece weight in range Romnelet sheep. Can. J. Anim. Sci. 41: 109–114.CrossRefGoogle Scholar