The effect of addition of equine chorionic gonadotropin to a progesterone-based estrous synchronization protocol in buffaloes (Bubalus bubalis) under tropical conditions

Murugavel, K. Kalidasa; Antoine, D.; Raju, M. S.; López‐Gatius, F.

doi:10.1016/j.theriogenology.2008.12.012

Cited by 40 publications

(31 citation statements)

References 31 publications

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“…However, Ovsynch-plus treatment resulted in estrus induction rate of 42-66% and pregnancy rate of 15-30% in buffalo heifers during summer season [30,13] which are much lower than our observations. The better estrus induction and conception rate in present investigation could be due to different season and parity between studies [4,11] apart from better care of individual animals for heat detection/management in field.…”

Section: Resultsmentioning

confidence: 99%

Estrus induction and fertility response following different treatment protocols in Murrah buffaloes under field conditions

Kumar¹,

Phogat²,

Pandey³

et al. 2016

Vet World

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Aim:The aim of this study was to evaluate the efficacy of three different treatment protocols for estrus induction and conception rate in postpartum anestrus buffaloes during breeding season under field conditions.Materials and Methods:The 47 postpartum anestrus buffaloes of the 2nd to 6th parity were divided into three groups. Group 1 (n=16): Buffaloes received cosynch treatment, that is, buserelin acetate 10 µg on day 0 and 9, cloprostenol 500 µg on day 7 followed by fixed-time artificial insemination (FTAI) at the time of second buserelin acetate and 24 h later. Group 2 (n=15): Buffaloes received norgestomet ear implant subcutaneously for 9 days, estradiol benzoate 2 mg on the day of implant insertion (day 0), pregnant mare serum gonadotropin (PMSG) 400 IU and cloprostenol 500 µg on day 9 followed by AI at 48 and 72 h after implant removal. Group 3 (Cosynch-plus, n=16): Buffaloes received Cosynch protocol as per Group 1 except an additional injection of PMSG 400 IU (i.m.) was given 3 days before the start of protocol and FTAI done at the same time of Group 1. Pregnancy diagnosis was performed after 45 days of AI.Results:The estrus induction response following the treatment was 81.3%, 100%, and 93.7% in Group 1, 2, and 3, respectively. The buffaloes of Group 1, 2, and 3 expressed intense (38.4%, 60% and 46.6%, respectively) and moderate estrus (46.1%, 26.6%, and 40%, respectively). The conception rates in Group 1, 2, and 3, at FTAI and overall including subsequent estrus were 37.5% and 62.5%, 53.3%, and 66.6%, 56.3%, and 75%, respectively.Conclusion:All the three treatment protocols can be effectively used for induction of estrus with acceptable conception rate in postpartum anestrus buffaloes during breeding season under field conditions. However, Cosynch-plus (similar to Cosynch protocol except addition of PMSG, 400 IU 3 days before the start of first buserelin acetate administration) protocol results comparatively better pregnancy rate.

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Section: Resultsmentioning

confidence: 99%

Estrus induction and fertility response following different treatment protocols in Murrah buffaloes under field conditions

Kumar¹,

Phogat²,

Pandey³

et al. 2016

Vet World

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“…Despite these qualities, some of the main Most of the oestrous synchronization protocols in buffalo are empirically based on those developed for cattle by inducing premature luteolysis using prostaglandins (Kumaratillake et al, 1977;Pathiraja et al, 1979) or prolonging the luteal phase using progestagens (Martinez et al, 1997;Martinez et al, 2000Martinez et al, , 2002 which ultimately resulted in variable fertility. Among many of these oestrous synchronization protocols the use of CIDR device for reproductive management in buffalo is most prevalent, as few previous studies achieved comparable pregnancy rates in anoestrous buffalo during breeding or non-breeding seasons (Murugavel et al, 2009;Ahmad et al, 2010;Naseer et al, 2011;Carvalho et al, 2013;Barlie et al, 2015). The use of the CIDR has resulted in a resumption of oestrous cycles in anovular cows (Rhodes et al, 2002) and Holstein heifers (Yusuf et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effect of oestradiol benzoate on oestrus intensity and pregnancy rate in CIDR treated anoestrus nulliparous and multiparous buffalo

Yousuf

Martins

Husnain

et al. 2015

Animal Reproduction Science

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“…Previous studies have shown the effectiveness of short protocols that use a GnRH treatment at the day of insertion of the progesterone device (BRIDGES et al, 2008;SANTOS et al, 2010). Nevertheless, to our knowledge, this is the first report evaluating the efficiency of a short 5 d TAI protocol in buffaloes that have not been administered GnRH or EB at the beginning of the protocol.…”

Section: Introductionmentioning

confidence: 87%

“…Earlier studies demonstrated that pregnancy rates were higher after two inseminations (60%) (NASEER et al, 2011), but not satisfactory with a single insemination (27%) (MURUGAVEL et al, 2009), in buffaloes treated using a CIDR-GnRH protocol. In contrast, buffalo cows in seasonal anestrous synchronized with a conventional protocol consisting of 9 d of progesterone exposure along with an equine chorionic gonadotrophin (eCG) injection at CIDR removal achieved a P/AI of approximately 50% (CARVALHO et al, 2014).…”

Section: Treatment Controlmentioning

confidence: 96%

Use of a five-day progesterone-based timed artificial insemination protocol for dairy water buffaloes

Pfeifer¹,

Castro²

2017

SCA

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The objective of this study was to determine the effect of a short five-day (5 d) progesterone-based timed artificial insemination (TAI) protocol on the time of ovulation and fertility in dairy water buffaloes. In experiment 1, 30 dairy buffaloes were subjected to one of two estrous synchronization protocols. Females in the control group (n=17) were administered 2 mg of estradiol benzoate (EB), and an intravaginal progesterone-releasing device (CIDR) was inserted on day -12. On day -3, CIDR inserts were removed and all cows were treated with 150 μg of D-cloprostenol (a PGF2α-analogue). Fortyeight hours after CIDR removal, all cows received 100 µg of gonadotropin-releasing hormone (GnRH). Females assigned to the short 5 d group (n=13) received treatment similar to the control group, except that the CIDR device was inserted on day -8, and the EB treatment was eliminated. In experiment 2, 51 dairy buffaloes were separated into control (n=27) and short 5 d (n=24) groups that received the same treatment as described for cows in experiment 1, except that all females were inseminated 16 to 18 h after GnRH injection. The use of a short 5 d progesterone-based TAI protocol with or without treatment with EB on day 0 did not affect the time of ovulation and pregnancy per artificial insemination in lactating water buffaloes. Thus, we suggest that the short 5 d TAI protocol may be successfully used as an alternative to induce ovulation in dairy buffaloes, with the particular advantages of avoiding EB treatment and a shorter interval from the beginning of the protocol to TAI.

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The effect of addition of equine chorionic gonadotropin to a progesterone-based estrous synchronization protocol in buffaloes (Bubalus bubalis) under tropical conditions

Cited by 40 publications

References 31 publications

Estrus induction and fertility response following different treatment protocols in Murrah buffaloes under field conditions

Estrus induction and fertility response following different treatment protocols in Murrah buffaloes under field conditions

Effect of oestradiol benzoate on oestrus intensity and pregnancy rate in CIDR treated anoestrus nulliparous and multiparous buffalo

Use of a five-day progesterone-based timed artificial insemination protocol for dairy water buffaloes

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