Impact of buserelin acetate or hCG administration on day 5 post-ovulation on subsequent luteal profile and conception rate in Murrah buffalo (Bubalus bubalis)

Pandey, Anand Kumar; Dhaliwal, G. S.; Ghuman, S. P. S.; Agarwal, Seema

doi:10.1016/j.anireprosci.2015.09.013

Cited by 4 publications

(1 citation statement)

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“…In fact, during early luteal phase, the elevated progesterone concentrations lead to an adequate development of embryo, which later on secrets enough interferon-tau (IFNs) obligatory for suppressing the luteolytic mechanisms (Mann and Lamming 2001). On selected days of oestrous cycle, the administration of gonadotropin-releasing hormone analogue (GnRH) (Campanile et al 2008;Pandey et al 2015), human chorionic gonadotropin (hCG) (Campanile et al 2007;Pandey et al 2013b) or progesterone (Pandey et al 2013a) has the ability to elevate plasma progesterone and hence prevents luteal insufficiency-induced early embryonic mortality.…”

Section: Introductionmentioning

confidence: 99%

Impact of Buserelin Acetate or hCG Administration on the Day of First Artificial Insemination on Subsequent Luteal Profile and Conception Rate in Murrah Buffalo (Bubalus bubalis)

Pandey

Ghuman

Dhaliwal

et al. 2016

Reprod Domestic Animals

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This study was designed to investigate the impact of buserelin acetate (BA) or human chorionic gonadotropin (hCG) administration on the day of first artificial insemination (AI) on subsequent luteal profile (diameter of corpus luteum (CL) and plasma progesterone) and conception rate in Murrah buffalo. The present experiment was carried out at two locations in 117 buffalo that were oestrus-synchronized using cloprostenol (500 μg) administered (i.m.) 11 days apart followed by AI during standing oestrus. Based on treatment (i.m.) at the time of AI, buffalo were randomly categorized (n = 39 in each group) into control (isotonic saline solution, 5 ml), dAI-BA (buserelin acetate, 20 μg) and dAI-hCG (hCG, 3000 IU) group. Out of these, 14 buffalo of each group were subjected to ovarian ultrasonography on the day of oestrus to monitor the preovulatory follicle and on days 5, 12, 16 and 21 post-ovulation to monitor CL diameter. On the day of each sonography, jugular vein blood samples were collected for the estimation of progesterone concentrations. All the buffalo (n = 117) were confirmed for pregnancy on day 40 post-ovulation. The conception rate was better (p < 0.05) in dAI-BA (51.3%) and dAI-hCG (66.7%) groups as compared to their control counterparts (30.8%). Furthermore, the buffalo of dAI-hCG group had improved (p < 0.05) luteal profile, whereas the buffalo of dAI-BA group failed (p > 0.05) to exhibit stimulatory impact of treatment on luteal profile when compared to control group. In brief, buserelin acetate or hCG treatment on the day of first AI leads to an increase in conception rate; however, an appreciable impact on post-ovulation luteal profile was observed only in hCG-treated Murrah buffalo.

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