Superovulatory Responses and Embryo Recoveries in Rathi (<i>Bos indicus</i>) Cattle with Different Doses of Folltropin-V

Purohit, G. N.; Barolia, Yogesh; Solanki, Kanika; Kumar, Pramod; Joshi, Rajiv; Mehta, Jitendra

doi:10.5958/j.2277-3371.3.2.007

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Previous studies on Bos indicus under Indian climatic conditions showed lesser superstimulatory response in Sahiwal cattle compared to results of current study (Mishra et al 1997), Ongole (Kasiraj et al 2000), Nellore (Silva et al 2009), and in a recent study in Rathi (Purohit et al 2013) cattle. Similarly, lower superstimulatory response and ovulations (12.2 and 9.4, respectively) were observed by Barati et al (2006) using 200 mg Folltropin and there exists no beneficial effect on further reducing the dose to 160 or 120 mg while 250 mg of FSH resulted in higher incidence of anovulatory follicles.…”

Section: Resultscontrasting

confidence: 50%

Curtailing the conventional dose of Folltropin-V for superstimulation and embryo recovery in Sahiwal cattle (Bos indicus)

Singhal

Singh

et al. 2021

Indian J of Anim Sci

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High cost of the follicle stimulating hormone (FSH) impacted embryo transfer technology (ETT) work in India. The experiment evaluated effects of reduced (200 mg vs 400 mg) FSH (Folltropin-V) dose on superovulation and embryo recovery in Sahiwal cattle. Animals treated with conventional dose of Folltropin, i.e. 400 mg (G1, n=6) were compared with another group administered with half dose (i.e. 200 mg) of Folltropin (G2, n=6). Superstimulatory response (number of follicles >8 mm) during estrus; unovulatory follicles, superovulatory response (one day prior to embryo flushing) using trans-rectal ultrasonography were recorded. Embryos were collected nonsurgically on day-7 post insemination and total recovered and transferable embryos were noted. Results revealed that number of follicles during estrus and subsequent ovulations were significantly higher in the G1 compared to G2 (30.0±1.37 and 26.3±0.99 vs. 20.3±0.21 and 17.7±0.42, respectively). Unovulatory follicles per animal were lower (2.6±0.21 vs. 3.7±0.49) in G2 than G1. The group receiving lower dose of Folltropin (G2) had significantly higher average embryo recovery compared to G1 (12.0±0.63 vs 8.7±0.76, respectively). Additionally, average number of transferable embryos were non-significantly higher in G2 (7.0±0.37) than G1 (5.7±0.88). The study indicated that lower dose of Folltropin-V (200 mg compared to 400 mg) is more effective in superovulation and embryo production in Sahiwal cows.

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Section: Resultscontrasting

confidence: 50%

Curtailing the conventional dose of Folltropin-V for superstimulation and embryo recovery in Sahiwal cattle (Bos indicus)

Singhal

Singh

et al. 2021

Indian J of Anim Sci

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“…In this study, the superovulatory response was not significantly different between donor breeds which agrees to previous reports by Batista et al (2016), Degefa et al (2016), andDegefa et al (2018). However, other authors (Purohit et al, 2013;Guerreiro et al, 2014) showed that Bos indicus have an inherently low ovarian follicular population and respond less than the Taurus breeds.…”

Section: Discussionmentioning

confidence: 99%

Influence of breed on the quality of in vivo produced embryos from Boran and Holstein Friesian cross dairy breed in Ethiopia

Jemal¹,

Degefa²,

Ali³

et al. 2021

Ethiop. Vet. J.

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The variation of the dairy breed can determine the success of bovine embryo transfer by influencing the quantity and quality of in vivo embryo production. In this experiment, output and quality of in vivo produced embryos using semen of progeny tested Holstein Friesian (HF) sire in Boran and HF*Boran F1 cross cows, and semen from purebred Boran sire in HF*Boran F1 cross and Boran cows were evaluated. Boran (n=18) and HF*Boran cross (n=18) breed donor dams were superovulated using a previously optimized follicular stimulating hormone (FSH) (Pluset®) dose regimen: 650 IU for HF*Boran cross and 250 IU for Boran breeds. Each cow was flushed on Day-7 post insemination and embryos were evaluated for their developmental stages and quality. Superovulatory response rates were 88.9% and 83.3%, respectively, for Boran and HF*Boran with no significant (P>0.05) breed differences. Total recovery rates were relatively lower (56.5%) in Boran compared to in HF*Boran (67.4%). The mean (±SE) embryo flush outputs were 6.5±0.8 for Boran and 6.9±0.7 forHF*Boran with no significant breed difference. Recovery of a transferrable embryo was significantly higher (68.0%; P<0.05) in HF*Boran dam inseminated with HF sire semen. Boran cows yielded a significantly higher (P<0.05) proportion of unfertilized ovum (57.6 %) irrespective of the sire breeds. Comparatively, a higher number of degenerated embryos were produced by HF*Boran cows. This study demonstrated that the presence of breed-related differences in both the quality and quantity of in vivo produced Bovine embryos.

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Superovulatory Responses and Embryo Recoveries in Rathi (Bos indicus) Cattle with Different Doses of Folltropin-V

Cited by 2 publications

References 9 publications

Curtailing the conventional dose of Folltropin-V for superstimulation and embryo recovery in Sahiwal cattle (Bos indicus)

Curtailing the conventional dose of Folltropin-V for superstimulation and embryo recovery in Sahiwal cattle (Bos indicus)

Influence of breed on the quality of in vivo produced embryos from Boran and Holstein Friesian cross dairy breed in Ethiopia

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