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Genetic Parameters of Growth Traits in Crossbred Sheep
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Genetic Parameters of Growth Traits in Crossbred Sheep
Singh, D.; Kumar, Ramesh; Pander, B.L.; Dhaka, S.S.; Singh, S.;
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Data spread over 11 years (1986-1996) pertaining to a synthetic population developed by inter se mating of half-breds of Corriedale and Russian Merino with Nali maintained at CCS Haryana Agricultural University, Hisar were utilized for the estimation of genetic parameters for growth traits. The means for birth weight (BWT), weaning weight (WWT), six month body weight (SWT), yearling weight (YWT), preweaning daily gain (PRW) and post weaning daily gain (POW) were 3.35 kg, 10.79 kg, 13.28 kg, 18.96 kg, 82.6 gm and 27.6 gm, respectively. The effects of year and season of birth and sex of lamb were significant for all the traits under study except the effect of season of birth for WWT, SWT and PRW. No definite trend was observed over the years for the averages of body weight and gain. Lambs born during the spring season performed better for BWT, WWT and PRW while the performance of lambs born during autumn was better for the other traits included in the study. The male lambs were heavier than the females for body weight at all stages and gain in weight. The heritability estimates for WWT and PRW were low; for BWT and SWT were moderate and for YWT and POW were high. Birth weight had high heritability and high genetic correlations with subsequent body weights and gains but due to the presence of a maternal effect on BWT and WWT, a sequential selection procedure is recommended for the improvement of growth rate in sheep.
Heritability;Correlations;Growth Traits;Sheep;
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Genetic analysis of growth traits in Harnali sheep, Veterinary World, 2016, 9, 2, 128  crossref(new windwow)
Alkass, J. E., D. A. Aziz and H. N. Hermiz. 1991. Genetic parameters of growth traits in Awassi sheep. Emirates J. Agric. Sci. 3:152-161

Analla, M., S. Munoz and S. J. M. Aarpot. 1997. Analysis of the genetic relationship between litter size and weight traits in Sugrena sheep. Canadian J. Anim. Sci. 77:17-21

Assan, N. and S. Makuza. 2005. The effect of non-genetic factors on birth weight and weaning weight in three sheep breeds of Zimbabwe. Asian-Aust. J. Anim. Sci. 18:151-157

Assan, N., S. Makuza, F. Mhlanga and O. Mabuka. 2002. Genetic evaluation and selection response of birth weight and weaning weight in indigenous Sabi sheep. Asian-Aust. J. Anim. Sci. 15:1690-1694

Bathaei, S. S. and P. L. Leroy. 1994. Lamb growth performance and factors affecting body weight of Iranian fat tailed Mehraban breed of sheep. Vet. Med. 47:113-116

Bissette, S. A., A. Vlassoff, C. A. Morris, B. R. Southey, R. L. Baker and A. G. H. Parker. 1992. Heritability and genetic correlation among faecal egg counts and productivity traits in Romney sheep. New Zealand J. Agric. Res. 35:51-58

Burfening, P. J. and M. Carpio. 1993. Genetic and environmental factors affecting growth rate and survival of Junin sheep in the central high lands of Peru. Small Ruminant Res. 7:369-374 crossref(new window)

Caningten, J., S. C. Bishop and G. Smim. 1994. Genetic parameters for early growth and ultrasonically measured carcass traits in British hill sheep. In Proceedings: Fifth World Congress on Genetic Applied Livestock Production. 11:53-56

Chaudhary, A. L. 1988. Twenty five year research. Central Sheep and Wool Research Institute. Avikanagar. India

DAHD. 2002. Annual Report, 2001-2002. Department of Animal Husbandry and Dairying, Ministry of Agriculture, Govt. India, New Delhi

Gomez, G. R., S. A. Ramirez and R. J. Capote. 1994. Some factors affecting birth weight in Palibuey sheep. Anim. Breed. Abstr. 64:321

Hall, D. G., A. R. Gilmour and N. M. Fogarty. 1994. Variation in reproduction and production of Poll Dorset ewes. Aust. J. Agric. Res. 30:415-426

Harvey, W. R. 1987. Mixed model least-squares and maximum likelihood computer program. January, 1987

Jurado, J. J., A. Alonso and R. Alenda. 1994. Selection response for growth in a Spanish Merino flock. J. Anim. Sci. 72:1433-1440

Kramer, C. Y. 1957. Extension of multiple range tests to group correlated adjusted means. Biometrics. 13:13-18 crossref(new window)

Kushwaha, B. P., A. Jain and G. Singh. 1995. Estimate of genetic and phenotypic parameters of body weights and fleece weight in Avivastra sheep. Expected response through index selection in Avivastra sheep. Indian J. Anim. Sci. 65:812-813

Kushwaha, B. P., G. Singh, A. L. Arora and S. D. J. Bohra. 1996. Selection indices in Chokla sheep. Indian J. Anim. Sci. 66:296- 297

McEwan, J. C., K. G. Dodss, G. H. Davis, P. F. Fennessey and M. Hishon. 1991. Heritability of ultrasonic fat and muscle depths in sheep and their correlations with production traits. In Proceedings: Aust. Assoc. Anim. Breed. Genet. 9:276-279

Mukafui, M. K. A., S. K. Bhadula, R. B. Prasad and R. R. Barwal. 1990. Genetic and phenotypic parameters of body weight at different ages in Rambouillet$\times$Gaddi crossbred sheep. Indian J. Anim. Sci. 60:738-739

Robertson, A. 1959. The sampling variance of the genetic correlation coefficient. Biometrics. 15:469-485 crossref(new window)

Roda, D. S., P. A. Otto, L. E. Dos Santos and W. Dupas. 1990. Effect of season of birth on the survival and growth of Polwarth and Corriedale lambs. Boletim de Industria Animal. 47:81-87

Singh, P. 1995. Appraisal of body weight and wool production in Nali sheep and its different grades. M.V.Sc. thesis. CCS Haryana Agric. Univ., Hisar. India

Singh, G. and J. S. Dhillon. 1992. Factors effecting body weight of Avikalin lambs. Indian J. Anim. Sci. 62:574-580

Sharma, R. C., A. L. Arora, A. K. Mishra, S. Kumar and V. K. Singh. 2004. Breeding prolific Garole with Malpura sheep for increased reproductive efficiency in Semi Arid Tropics of India. Asian-Aust. J. Anim. Sci. 17:737-742

Snedecor, G. W. and W. G. Cochran. 1968. Statistical Methods. 7th Ed. Oxford and IBH Publishing Co., Bombay

Snyman, M. A., G. J. Wyk and J. B. Van. 1995. Non-genetic factors influencing growth and fleece traits in Afrino sheep. South African J. Anim. Sci. 25:70-74

Sunkhyan, S. K., A. K. Shinde, S. A. Karim and B. C. Patnayal. 1997. Production performance of native and crossbred sheep on silvi pasture. Indian J. Anim. Prod. Mgmt. 13:117-118

Swiger, L. A., W. R. Harvey, D. O. Everson and K. E. Gregory. 1964. The variance of intraclass correlation involving groups without observation. Biometrics. 20:818-826 crossref(new window)

Yamaki, K. and Y. Sagae. 1991. Growth and genetic parameters in four sheep breeds. Anim. Sci. Technol. Jpn. 62:925-932