Efficiency evaluation of two estrus synchronization protocols in estrus response and conception rate of dairy cows in the Dalocha district, Ethiopia

Haile, Sharew Mekonnen; Abebe, Belete Kuraz; Tesfa, Tigst Wendala

doi:10.1016/j.heliyon.2022.e12781

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…The treatment response obtained in this study was in agreement with previous reports (Aydaiso et al, 2020;Shanku, 2022;Haile et al, 2023) but relatively higher than rates reported by Fantahun and Admasu (2017) and Gizaw et al (2016). Estrus detection efficiency was one of the major limiting factors for the success of ES programs (Sveberg et al, 2011;Roelofs and Van Erp-van der Kooij, 2018), which goes in line with the present report.…”

Section: Community Outreachsupporting

confidence: 93%

Dairy village: the role of veterinary services in unlocking dairy industry potential through assisted reproductive technologies

Ali,

Dire,

Degefa

et al. 2024

Ethiop. Vet. J.

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The “Dairy Village” concept was designed to overcome the constraints of estrus synchronization and AI particularly associated with eletion of the breeding animals and subsequent management of estrous cows in Ethiopia. All necessary inputs, including sexed semen, were acquired before the fieldwork. The knowledge and skill gaps were identified and addressed with the active involvement of veterinarians and AI technicians who underwent specialized training to ensure proper physical and gynecological examinations during the selection of cows and heifers. Accordingly, a refresher training was delivered on topics of reproductive anatomy and physiology, assessment of ovarian status, semen handling, and insemination at the optimal time to establish pregnancy. Besides, awareness creation seminars were held every year on topics of benefits of reproductive technologies and management of breeding cows to 99 smallholder dairy farmers. Only 578 cows/heifers were found fit for breeding out of the 1262 cows/heifers that were brought for evaluation; including 81 animals that spontaneously showed estrus. A total of 497 cows/heifers were synchronized using a single IM injection of Lutalyse. Animals responding to the treatment (404 cow/heifers) and those spontaneously in estrus (81cows/ heifers) were inseminated using sex- sorted HF semen 18-24hrs into the standing estrus. Pregnancy rate was 80% (388/485) and 287 calves were born (96% female). Results of this project indicate that rigorous gynecological examination during the selection of cows prior to estrus synchronization and judicious application of hormonal treatments can yield improve the success of ES/AI projects under field conditions. Furthermore, the dairy village approach to enhanced milk production through efficient use of sex-sorted semen has generated replacement heifers from superior breed that will substantially improve the livelihoods of village farmers.

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Section: Community Outreachsupporting

confidence: 93%

Dairy village: the role of veterinary services in unlocking dairy industry potential through assisted reproductive technologies

Ali,

Dire,

Degefa

et al. 2024

Ethiop. Vet. J.

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“…Recent studies reveal common pre-service/post-partum ovarian issues, including energy intake and postpartum diseases, with only 51% of high-producing dairy cows showing normal cyclicity 50 days postpartum ( Opsomer et al , 2000 ; Abraham, 2017 ). Hormonal synchronization and reproductive management have been associated with differences in reproductive performance in previous studies ( Negrón-Pérez et al , 2019 ; Civiero et al , 2021 ; Pfeifer et al , 2021 ; Fricke and Wiltbank, 2022 ; Fury and Trevor, 2022 ; Mounir and Aspinas, 2022 ; Haile et al , 2023 ). The duration of follicular dominance, diestrus progesterone, proestrus length, and estradiol exposure have been found to impact ovarian dynamics, fertilization, embryo quality, and uterine environment ( Crowe, 2008 ; Chauhan et al , 2021 ; Sayid, 2021 ).…”

Section: Introductionmentioning

confidence: 87%

Customized modified therapies for ovarian cyst and persistent follicle followed with TAI in early postpartum dairy cows

Mariol,

Mahdy,

Amer

et al. 2024

Open Vet J

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Background: Postpartum ovarian dysfunction (ovarian cyst and persistent follicle) has been an important issue. Finding effective hormonal treatments to improve reproductive performance in dairy cows has become a necessity. Aim: Improve reproductive performance and ovarian activity in postpartum cows with specific customized treatment for ovarian cyst and persistent follicle. Methods: The study included 48 cows at 14 days P.P, which received two dosages of 500 μg IM cloprostenol, 14 days apart as presynchronization protocol. Ultrasound ovarian scans 14 days after the last injection for four weeks. The cows were divided into three groups according to ovarian status: OC (n=14), PF (n=12) and NE (n=22). In the OC group, received 500 μg IM cloprostenol and 100 μg IM cystoriline, a second dose of cloprostenol 14 days later and a second dose of cystoriline 36 hr. later, and AI after 24 hr. (GnRH+PG/PG/GnRH). In the PF group, were fitted with PRID for 9 days; the same day, they received 100 μg cystoreline then 500 μg cloprostenol 7 days later, after PRID removal AI 56 hours later (PRID+GnRH/PG). In the NE group, the artificial insemination was implemented until 28 days depended on estrus detection. Results: The ovarian activity was greatly affected by the customized treatments, leading to enhanced follicular and luteal activity, particularly after the PGF2α injection. The OC and PF groups showed substantial estrus responses of 71.43% and 75.02% respectively, during AI time. While the NE group had an ovulation rate of 54.5% and a pregnancy rate of 31.8%, the treatment groups showed marked improvements in reproductive performance. The ovulation rates in the OC and PF groups were 71.43 and 75% and the pregnancy rates at the 1st TAI were 64.28 and 66.7%. Conclusion: Improving reproductive performance and minimizing the time to first service are possible advantages of early case-specific treatment for postpartum cows with ovarian cysts and persistent follicles.

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“…Prostaglandin can be administered in single or double injection systems, alone or in combination with other hormones. Prostaglandin double injections were performed at intervals of 10-14 days [1] and responded better than single injections [2,3,4,5], but they required more cost and labor. The modifications to both protocols can improve response and efficiency in application.…”

Section: Introductionmentioning

confidence: 99%

Estrus response to estrus synchronization using prostaglandin nanoparticle in beef cattle in Majalengka regency

Kusumaningrum,

Sopiyana,

Gustiani

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The study was conducted to determine the estrus response to the applying of prostaglandin nanoparticles (PNp) in two different estrous synchronization protocols. The estrus synchronization occurred in the Majalengka Regency in different years at the same location. The first study (study 1), estrus synchronization was carried out using a single PNp injection protocol, which was preceded by corpus luteum (CL) selection (21 cows). The second study (study 2), double PNp injections were carried out at day-0 and day-11 without prior CL selection (23 cows). The observation of estrus: onset of estrus and estrus quality (score 0-3) were observed 1-5 days after the PNp injection. Results of the study showed that 100% of the cattle were in estrus 2-3 days after the injection of PNp (study 1). The study 2, the estrus response appeared 2-3 days after the PNp injection: 17.35% showed an estrus response after the first PNp injection, 78.26% showed an estrus response at the second PNp injection, and 4.35% showed no estrus response. The pregnancy rate after estrus synchronization is 66.7% and 68.2% for studies 1 and 2. It can be concluded that there is a good response to estrus and pregnancy rate in the application of PNp in both single injections preceding CL selection and double injections with two periods of insemination. Both methods can be applied for estrus synchronization for more savings in PNp hormone administration. The application of that method depends on hormone availability and technician expertise in CL detection.

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Efficiency evaluation of two estrus synchronization protocols in estrus response and conception rate of dairy cows in the Dalocha district, Ethiopia

Cited by 6 publications

References 14 publications

Dairy village: the role of veterinary services in unlocking dairy industry potential through assisted reproductive technologies

Dairy village: the role of veterinary services in unlocking dairy industry potential through assisted reproductive technologies

Customized modified therapies for ovarian cyst and persistent follicle followed with TAI in early postpartum dairy cows

Estrus response to estrus synchronization using prostaglandin nanoparticle in beef cattle in Majalengka regency

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