Authors : B.P. Carvalho, M.R.B. Mello, J.M. Baldrighi, J.S. Campanati, R.R.C. Mello and A.J.B. Dias
Abstract: This study evaluated the superovulatory response of Red Sindhi cows to three different doses of FSH. Cows were randomly assigned to three experimental groups in which they received 100, 133 or 200 mg Folltropin-V® as superovulatory treatment, totaling 16, 13 and 14 superovulation per group, respectively. Superovulatory response was determined by the number of corpora lutea present in both ovaries on (D6) after first insemination and the number of recovered structures, percentage of recovered structures (recovered structures/CL), viable and freezable embryos collected on D7. The development stage of recovered structures was also examined. An effect of dose on the number of corpora lutea and number of recovered structures (p<0.05) was observed and the 200 mg dose produced the best results (6.4±0.85 and 3.5±0.95, respectively). Considering the number of viable embryos and the number of freezable embryos, there was no difference (p>0.05) among the three groups. Statistical difference was found between the stages of embryonic development with a greater number of embryos in the stage between compact morulae and blastocyst (p<0.05). Under the conditions of this study the dosage of 200 mg FSH induced higher number of corpora lutea and total recovered structures but the doses of FSH tested did not influence the number of viable and freezable embryos.
B.P. Carvalho, M.R.B. Mello, J.M. Baldrighi, J.S. Campanati, R.R.C. Mello and A.J.B. Dias, 2018. Superovulatory Response of Red Sindhi Cows (Bos Taurus Indicus) Treated with Three Different Doses of FSH. Journal of Animal and Veterinary Advances, 17: 13-18.