Asian-Australasian Journal of Animal Sciences

  • 제15권5호
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  • Pages.633-636
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  • 2002
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  • 1011-2367(pISSN)
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  • 1976-5517(eISSN)
아세아태평양축산학회 (Asian Australasian Association of Animal Production Societies)
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Production of Crossbred Lambs through Artificial Insemination of Non-prolific Medium Size Malpura and Avikalin Ewes Using Fresh Diluted Semen of Prolific Micro Size Garole Rams

  • Naqvi, S.M.K. (Division of Animal Physiology, Central Sheep and Wool Research Institute) ;
  • Maurya, V.P. (Division of Animal Physiology, Central Sheep and Wool Research Institute) ;
  • Joshi, Anil (Division of Animal Physiology, Central Sheep and Wool Research Institute) ;
  • Sharma, R.C. (Division of Animal Physiology, Central Sheep and Wool Research Institute) ;
  • Mittal, J.P. (Division of Animal Physiology, Central Sheep and Wool Research Institute)
  • 투고 : 2001.07.30
  • 심사 : 2001.12.10
  • 발행 : 2002.05.01
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초록

Six adult Garole rams maintained under a semi-intensive system were used as semen donors for this study. Semen was collectied daily during the monsoon season with the help of an artificial vagina and examined for its quality characteristics. Ejaculates of thick consistency, rapid wave motion, ${\geq}80%$ motility and intense movement of motile spermatozoa were diluted at the rate of 1:1 with egg yolk McIllvaine glucose diluent at $30^{\circ}C$ in water bath. Estrus in ewes was detected by parading aproned rams of proven vigour at 12 h intervals. The ewes (54 Malpura and 23 Avikalin) in estrus were artificially inseminated with fresh diluted ram semen. The overall conception rate was 94.8%, (range 91.7 to 100%). The overall lambing percent was 80.5 with a range of 75.0 to 84.6%. There was no significant (p>0.05) difference in lambing and conception rate because of individual rams. Fertility was significantly lower (p<0.05) in ewes of less than two years and more than six years of age. Breed (Malpura and Avikalin) effect was not observed in conception and lambing rate (p>0.05). No significant difference (p>0.05) in birth weight and 12 month weight was observed between Garole${\times}$Avikalin and Garole${\times}$Malpura crossbred lambs but there was significant (p<0.05) difference at three month and six months body weight of both the crossbred lambs.

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참고문헌

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피인용 문헌

  1. Objective assessment of sperm motion characteristics of Malpura ram lambs raised under intensive management system in semiarid tropical environment vol.42, pp.4, 2010, https://doi.org/10.1007/s11250-009-9472-y