18-Title: Study on comparison of different oestrus synchronization/induction protocols in anoestrus buffaloes
Authors: Ankesh Kumar and Ajeet Kumar
Source: Ruminant Science (2021)-10(2):333-336.
How to cite this manuscript: Kumar Ankesh and Kumar Ajeet (2021). Study on comparison of different oestrus synchronization/induction protocols in anoestrus buffaloes. Ruminant Science 10(2):333-336.
Abstract
Different oestrous synchronizing protocols like CIDR-controlled internal drug-releasing, Ovsynch and Co-synch are used for enhancing the reproductive efficiency of buffaloes but the conception rates are variable. A total of 32 true anoestrous buffalo were selected for the study and were divided into four groups (T1, T2, T3 and T4) each group comprising eight anoestrous buffaloes. T1 group was kept as control. The blood plasma progesterone (P4) was estimated on day ‘0’ (just before treatment), day 7 (at the time of PGF2 alpha administration), day 9 and day 21 post-AI. The overall higher conception rate of 62.5% was observed in the CIDR protocol followed by Ovsynch and Co synch. The mean progesterone level was significantly (p<0.05) higher in CIDR protocol on day 21 post-AI and on day 7 followed by days 0 and 9.
References:
Ali A and Fahmy S (2007). Ovarian dynamics and milk progesterone concentrations in cycling and non-cycling buffalo cows (Bubalus bubalis) during Ovsynch program. Theriogenology 68:23-28.
Bulman DC and Lamming GC (1978). Factor influencing ovarian activity in postpartum dairy cows. Animal Breeding Abstract 46:4881.
Dhami AJ, Nakrani BB, Hadiya KK, Patel JA and Shah RG (2015). Comparative efficacy of different estrus synchronization protocols on estrus induction response, fertility and plasma progesterone and biochemical profile in crossbred anestrus cows. Veterinary World 8(11):1310-1316.
Dudi V, Mehta JS, Chaudhary AK, Kumar Pramod, Kumar Amit and Ruhil Swati (2017). Efficacy of different estrus synchronizing protocols on estrus induction in postpartum lactating dairy cows. Ruminant Science 6(2):337-340.
EL-Zarkouny SZ, Cartmill JA, Hensley BA and Stevenson JS (2004). Pregnancy in dairy cows after synchronized ovulation regimens with or without pre-synchronization and progesterone. Journal of Dairy Science 87:1024-1037.
Keskin A, Yilmazbas-Mecitoglu G, Gumen A, Karakaya E, Celik Y, Okut H and Wiltbank MC (2011). Comparison of responses to Ovsynch between Holstein-Friesian and Swedish Red cows. Journal of Dairy Science 94:1784-1789.
Kubasic NP, Hallauer GD and Brodows RG (1984). Evaluation of direct solid-phase RIA for progesterone, useful for monitoring luteal function. Clinical Chemistry 30:284-286.
Kumar Amit, Mehta JS, Ruhil Swati and Purohit GN (2018). Effects of different estrous synchronization protocols on estrus and subsequent fertility in cycling cows. Ruminant Science 7(1):83-86.
Mohan Krishna, Mishra UK, Mishra OP, Khan JR and Prakash BS (2010). Efficacy of Ovsynch protocol with fixed time insemination in anestrous Sahiwal cows and heifers. Indian Veterinary Journal 87:297-298.
Shukla MK and Garg Abhishek (2012). Efficacy of different route of administration and doses of dinoprost in estrus induction/ synchronization in subestrus Murrah buffaloes. Ruminant Science 1(1):63-65.
Patel KR, Dhami AJ, Hadiya KK, Savalia KK and Sarvaiya NP (2013). Effect of CIDR and Ovsynch protocols on estrus response, fertility and plasma progesterone and biochemical profile in true anoestrus crossbred cows. Indian Journal of Animal Production and Management 29(3-4):50-58.
Rasool F, Lone FA and Banday MN (2020). Reproductive response and progesterone profile of aged Corriedale ewes following different hormone based oestrous synchronization schemes. Ruminant Science 9(1):77-82.
Ribadu AY, Ward WR and Dobson H (1994).Comparative evaluation of ovarian structures in cattle by palpation per rectum, ultrasonography and plasma progesterone. Veterinary Record 135:452-457.
Singh S, Shukla SN and Gupta KK (2019). Fertility response to insulin modified Ovsynch protocol in postpartum acyclic buffaloes. Ruminant Science 8(1):45-48.