000 03203nam a22002177a 4500
005 20160711105321.0
008 160711b2016 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a2469-T
100 _aAbdul Waheed (2009-VA-133)
110 _cDr. Aijaz ali Channa
245 _aEffect Of Bio-Stimulation On Estrus Expression And Pregnancy Rate In Cidr Based Synchronization Protocol In Nili-Ravi Buffalo
260 _c2016.
300 _a80p.;
502 _aOur water buffalo (Bubalus bubalis) has much potential for production of milk. But this animal has some problems regarding reproduction including delayed puberty, poor estrus behavior, silent heat, long postpartum period and low conception rate by artificial insemination. This leads to poor reproduction and hence great economic loss. Therefore, the requirement is to address these problems efficiently and formulate more effective techniques for improvements. Researchers have devised many estrus synchronization protocols (PGF2α, P4, GnRH, eCG, hCG etc.) that help bringing many animals in heat and hence improve the reproductive performance when fixed time artificial insemination is combined with them. But these protocols give inconsistent results when they are applied on buffaloes making it necessary to improve the techniques. This study was planned on the hypothesis that presence of bull (bio-stimulation), at the time of synchronization, may play an important role in enhancement of estrus intensity and fertility rate in Nili-Ravi buffaloes. Seventy one adult buffaloes were randomly selected from different areas of field conditions and LRS (NARC) and subjected to CIDR based heat synchronization in combination of either bio-stimulation or non-stimulation. The animals were observed for behavioral estrus signs twice a day starting after 12 hours of CIDR removal till 96 hours. Pregnancy diagnosis was done by rectal palpation 60 days post CIDR removal. Estrus response and pregnancy rate were analyzed by Chi-square test using MINITAB version 15. Estrus signs and total estrus intensity were compared by Mann Whitney U test. Difference was considered significant at probability level of (P < 0.05). In peri-urban areas, more animals from bio-stimulated group showed better behavioral estrus signs, more total intensity score and significantly higher pregnancy rate as compared to nonSUMMARY 63 stimulated group of animals. At LRS (NARC), more animals from non-stimulated group were found in behavioral estrus but intensity of heat signs was high in bio-stimulated animals. Pregnancy rate was also higher in non-stimulated animals but the difference was not significant. Overall, in this study, we got higher pregnancy rate in bio-stimulated animals than non-stimulated group which indicates a positive response of bull stimulation on reproductive performance of Nili- Ravi buffaloes who were synchronized with CIDR based estrus synchronization protocol.
650 _aDepartment of Theriogenology
700 _aDr. Syed Murtaza Hassan Andrabi
700 _aProf. Dr. Mian Abdul Sattar
700 _aProf. Dr. Aftab Ahmad Anjum
942 _cTH
999 _c8690