EFFECT OF BIO-STIMULATION AND CLOPROSTENOL ON PERCENTAGE OF ESTRUS SYNCHRONY AND CONCEPTION IN EWES
DOI:
https://doi.org/10.33003/jaat.2024.1004.06.376Keywords:
Biostimulation,, estrus synchronization,, percentage conceptionAbstract
This study examined the effects of biostimulation on estrus synchrony rates and conception rates in ewes. Twelve matured pre-partum ewes, weighing between 21 and 31 kg and 1 – 2 years of age were used for this study. The animals were assigned to four treatment groups (A,B,C and D) each consisting of three (n = 3) animals. Estrus manifestations were seen in group A, B, C and D as 100, 66.7, 66.7 and 0% respectively. The percentage conception in the groups confirmed through ultrasound scan were Percentage synchrony was highest in group A, with all the animals being synchronized after the second dose of cloprostenol were administered. In groups B (single dose of cloprostenol with introduction of a ram) and C (double doses of cloprostenol without introduction of ram) percentage synchrony were same. Bio stimulation had a synergistic effect on cloprostenol and their combination will reduce cost of synchronization and is therefore recommended for synchronization programs.
References
Ajala M.K. (2004). Household decision-making in the production of small ruminants in Giwa Local Government Area of Kaduna State of Nigeria. In: Proceedings of the 29th Annual Conference of the Nigerian Society of Animal Production. Sokoto, Nigeria. pp 399 – 402.
Akusu, M.O. (2003). Reproductive Performance of Goats for Maximum Animal Production in Nigeria; Inaugural lecture, University of Ibadan Printery. Pp 9.
Dereje, T., Berhanu, B., & Aynalem, H. (2013). Morphological Characterization of Indigenous Hararghe Highland Goat Breed in their Native Environment, West Hararghe, Ethiopia. American-Eurasian Journal of Scientific Research, 8 (2), 72-79.
Dogan, I., Nur, Z., Gunay, U., Soylu, M.K., & Sonmez, C. (2004). Comparison of flurogestone and medroxyprogesterone intravaginal sponges in oestrous synchronization in Saanen does during the transition period. S. Afr. J. Anim. Sci., 34, 18-22.
FAO (2012). Phenotypic characterization of animal genetic resources. FAO Animal Production and Health Guidelines No.11. Rome, Italy.
Haresign, W. (1992). The physiological basis for variation in ovulation rate and litter size in sheep. A review, Livestock Production Science, 13 (19:5) 3
Kohno, H., Okamoto, C., Iida, K., Takeda, T., & Kaneko, E. (2005). Comparison of estrus induction and subsequent fertility with two different intravaginal devices in ewes during the non-breeding season. J. Reprod. Dev., 51, 805-812.
Leboeuf, B., Forgerit, Y., Bernales, D., pougnard, J.L., Senty, E., & Driancourt, M.A. (2003). Efficacy of two types of vaginal sponges to control onset of estrus, time of preovulatory LH peak and kidding rates in goats inseminated with various numbers of spermatozoa. Theriogenology. 60, 1371-1378
Momoh, O.M., Rotimi, E.A., & Dim, N.I. (2013). Breed effect and non-genetic factors affecting growth performance of sheep in a semi-arid region of Nigeria. Journal of Applied Biosciences, 67, 5302 – 5307. Online at www.m.elewa.org.
Omontese, B.O., Rekwot, P.I., Makun, J.A., Obidi, J.A., Ruwaan, J.S., & Chiezey, S.P. (2010). Synchronization of Estrus using EAZI-Breed™ CIDR® and FGA-30® Intravaginal sponge in Pre-partum Yankasa Ewes. Research Journal of Animal Sciences. 4, 53-57.
Romano, J.E. (2002). Does in Proestrus-estrus hasten estrus in does estrous synchronized during the breeding season. Applied Animal Behaviour Science, 77, 329-334.
Rotimi, E.A., Momoh, O.M., Egahi, J.O. (2020). Relationship between bodyweight and morphological traits in Sahelian goats of Nigeria using path analysis. MKU. Tar. Bil. Derg., 25(3), 455-460. DOI:10.37908/mkutbd.737231
Shaib, B.A., Aliyu, A., and Bakshi, J.B. (1997). Nigeria national agricultural research strategic plan, 1996-2010. Federal Ministry of Agriculture and Natural Resources, Abuja.
Zakari, A.Y., Molokwu, E.C.I,. & Osori, D.I.K. (1981). Effect of season on the estrous cycle of cows (Bos indicus) indigenous for Northern Nigeria. Vet. Rec., 109, 213-215.
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