Author:
SINGH MAHAK,MOLLIER R TALIMOA,SHARMA P H ROMEN,CHAUDHARY J K
Abstract
Genetic advancement for the modern swine industry is primarily accomplished through the use of reproductive biotechnology, mainly artificial insemination (AI). The objective of the present study was to compare the fertility outcome by cervical and post-cervical artificial insemination (PCAI) using normal (three billion) and reduced (one billion) number of spermatozoa in pig. Pluriparous weaned sows were grouped into 4 groups, i.e. Group- 1, AI with three billion spermatozoa by intra-cervical insemination; Group-2, AI with one and half billion spermatozoa by intra-cervical insemination; Group-3, AI with three billion spermatozoa by PCAI and Group-4, AI with one and half billion spermatozoa by PCAI. Non-significantly higher farrowing rate was recorded in Group-3 compared to Group-1. Post-cervical AI with lower number of spermatozoa (Group-4) resulted into farrowing rate which was similar to cervical insemination with higher number of spermatozoa (Group-1). There was significant difference in litter size at birth and litter size at weaning between Group-1 and 2. Litter size at birth and litter size at weaning was significantly higher in Group-4 compared to Group-2. Also, litter size at birth and litter size at weaning was significantly higher in PCAI animals (Group-2 and 4) compared to cervical inseminated animals (Group-1 and 2). In conclusion, PCAI with liquid boar semen was found to have improved farrowing rate, litter size at birth and litter size at weaning compared to cervical insemination.
Publisher
Indian Council of Agricultural Research, Directorate of Knowledge Management in Agriculture
Subject
General Veterinary,Animal Science and Zoology
Reference18 articles.
1. Bortolozzo F P, Menegat M B, Mellagi A P G, Bernardi M L and Wentz I. 2015. New artificial insemination technologies for swine. Reproduction in Domestic Animal 50: 80–84.
2. Bracken C J, Safranski T J, Cantley T C, Lucy M C and Lamberson W R. 2003. Effect of time of ovulation and sperm concentration on fertilization rate in gilts. Theriogenology 60: 669–76.
3. Cassar G, Kirkwood R N, Poljak Z, Bennett-Steward K and Robert M. 2005. Effect of single or double insemination on fertility of sows bred at an induced estrus and ovulation. Journal of Swine Health 13: 254–58.
4. Fontana D L, Ulguim R R, Sbardella P E, Bernardi M L, Wentz I and Bortolozzo F P. 2014. Fixed-time post-cervical artificial insemination in sows receiving porcine luteinising hormone at oestrus onset. Animal Reproduction Science 144: 109–14.
5. Hernandez-Caravaca I, Izquierdo-Rico M J, Matas C, Carvajal J A, Vieira L and Abril D et al. 2012. Reproductive performance and backflow study in cervical and post-cervical artificial insemination in sows. Animal Reproduction Science 136: 14– 22.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献