Adaptability of russian angora rabbits in semi arid tropics

 S.C. Gupta, N. Gupta, A. Jain

Abstract

Russian Angora rabbits raised under semi arid conditions during 1982-1985 had average kindling % of 58.7. The average litter size at birth and at weaning (6 weeks) were 5.68 and 3.62 respectively. Body weight al birth 6, 12 and 24 weeks were 55 g, 536 g, 1.17 kg and 2.61 kg and 54 g, 536 g, 1.19 kg and 2.64 kg. The first group of data corresponds to males and the second to females. The wool was clipped firstly at 3 months of age and then at quarterly intervals. The wool yield showed steady increase with the age and was highest in the fourth clip: 40g/clip at 3 months and 60g/clip for adults on average. The wool yield in young as well as in adult rabbits was lowest in June clip (-36%/general mean). The influence of age, years and season of clip were significant (P 0.01) while the sex difference were non significant. The breeding of Russian angora rabbits was discontinuad after 1985 due to appearance of a genetic disorder "Retarded Wool Syndrome" which cause significant loss in wool yield. lt was probably due to inbreeding in a small population coupled with adversa effect of hot climate.


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References

BROCKHAUSEN P., PAUFLER S., SCLOLAUT W., 1979. lnfluence of heat stress, due to length of the coat, on semen quality traits, sexual behaviour and testis volume of angora rabbits. Zuchtungskunde, 512, 234-248.

CARO W., MAGOFKE J.C., GARCIA X., GARCIA G., CARVAJAL S., GECELE P., JADRIJEVIC D., BRUNA G., 1984. Environmental factors affecting fleece production in angora rabbits. Animal Breeding Abstr., 56, 1071.

CHEEKE P.R., PATTON N.M., TEMPLETON G.S., 1978. Rabbit Production. The lnterstate Printers and Publishers, Inc. Illinois, USA.

GARCIA F.X., MAGOFKE S.J., CARO T.W., GARCIA P., 1984. Crossbreeding between two lines of angora rabbits. Advances in Animal Production, 9, 183-187.

GUPTA S.C., 1986a. Retarded Wool Syndrome in Russian Angora rabbits. In : Proc. National Seminar on Fur Animal Production, Manali, India.

GUPTA S.C., 1986b. Problems and perspectives in rabbit production in semi arid conditions in India. In : Proc. National Seminar on Fur Animal Production, Manali, India.

GUPTA S.C., GUPTA N., RIYAZUDIN ?, SINGH G., 1992. Growth performance of meat rabbits in semi arid tropical conditions in India. In : Proc. of 5th World Rabbit Congress, Corvallis, Oregon, USA.

FIRSOVA N.M., 1974. Microclimate of closed sheds and performance of breeding rabbits. Animal Breeding Abstr., 45, 3454.

HARVEY W.R., 1990. User's guide for LSMLMW-PC­ Version 2. Mixed Model Least Square Maximum Likelihood Programme, Mine graph, Colombus, Ohio, USA.

KOETTER U., 1963. Investigations on the relations between wool quality and wool yield in Angora rabbits. Animal Breeding Abstr., 33, 661.

MAGOFKE J.C.S., GARCIA F.X., CARO T, 1982. Environmental factors influencing angora rabbit hair production. Advances in Animal Production, 7, 113-123 .

MATHUR A.K., SRIVASTAVAR.S., KALRA D.B., 1984. Semen evaluation of rabbits. Annual Report, CSWRI, Avikanagar, India

MONTOYA ONATA M.E., 1985. Some wool characters in Angora rabbits. Biologicheski Zhurnal Armenii, 26, 80-83 .

PAPP Z., KARVAO F., RAFAI P., 1983. Effect of microclimate on large scale rabbit farming. Magyar Allatorovosk Lapja, 38 (2), 115-120.

RICK MUNOZ L., 1984. Production of Angora rabbits in cages with a slopping floor, at four levels. Advances in Animal Production, 9, 213.

ROCHAMBEAU H. de, THEBAULT R.G., 1990. Genetics of the rabbit wool production. Animal Breeding Abstr., 58, 1-15.

ROCHAMBEAU H. de, THEBAULT R.G., BRUN J., 1991. Angora rabbit wool production : non-genetic factors affecting quantity and quality of wool. Animal production, 52 (2), 383-393. https://doi.org/10.1017/S0003356100012927

ROUGEOT J., THEBAULT R.G., 1983. Seasonal variations in coat composition and structure with special reference to the Angora rabbit. Ann. de Zootech., 32, 287-314. https://doi.org/10.1051/animres:19830303

ROUGEOT J., THEBAULT R.G., 1984. Le Lapin Angora, sa toison, son élevage. Le Point Vétérinaire ed., Maisons-Alfort, France, 182 pp

ROUGEOT J., THEBAULT R.G., 1989. Le Lapin Angora, sa toison, son élevage. Le Point Vétérinaire ed., Maisons-Alfort, France, p.93

SINGH B., SINGH N., 1986. Effect on wool production of supplementing black locust (Robinia pseudoacacia) and biul ( Grewia optival) leaves ad libitum to a concentrate diet of Angora rabbits. J. Appl. Rabbit Res., 6, 43.

SINGH D., GULYANI R., MALHI R.S., KISHOR K., SINGH R.N., 1989. Effect of castration on wool production in Angora rabbits. Indian J. Anim. Sci., 59 (9), 1185-1187.

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