| Autor: |
da Silva, Caroline Pessoa, Fernandes, César Carneiro Linhares, Alves, Juliana Paula Martins, de Oliveira, Felipe Brener Bezerra, Silva, Aline Maia, de Souza, Francisco Carlos, Cavalcante, Camila Muniz, Conde, Alfredo José Ferreira, do Rego, Anibal Coutinho, Rondina, Davide |
| Předmět: |
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| Zdroj: |
Ruminants; Dec2023, Vol. 3 Issue 4, p445-456, 12p |
| Abstrakt: |
We investigated the effects of short-term glycerin supplementation on follicular dynamics and pregnancy rates. Twenty-five goats with synchronized estrus and follicular waves with three injections of a prostaglandin analog every 7 days were used. Two days after the second injection, 13 goats were randomly chosen to receive an oral drench of 200 mL of glycerin (glycerin group [GG], n = 13) for 6 days, whereas the remaining 12 animals received an oral drench of saline (control group [CG], n = 12). At 24 and 48 h after the third injection, the goats mated. The animals were kept in a collective stall and received the same diet. The GG had higher blood glucose levels during the supplementation period than the CG (76.4 ± 1.9 vs. 50.3 ± 0.7 mg/dL; p < 0.01). The glycemic peak was recorded 4 h after the glycerin administration (102.3 ± 5.1 mg/dL) and remained higher than that in the CG 8 and 12 h later. The GG goats had a higher rectal temperature, heart rate, and respiratory rate than the CG goats and showed an increase in these parameters 4, 8, and 12 h after glycerin drenching. The GG animals also exhibited increased stress, urination, and drinking behaviors and reduced rumination. The ultrasonographic analysis showed a higher number of follicles with a diameter >4 mm (p < 0.05) and a greater follicular diameter (p < 0.01) in the waves before and after ovulation induction. The pregnancy and twinning rates and litter size at parturition were not different between the groups. Short-term supplementation with glycerin positively affects ovarian stimulation but has no effect on the reproductive response after mating. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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