Avaliação do uso do CIDR novo e reutilizado no início e duração do estro em ovinos / Evaluation of the use of new and reused CIDR at the beginning and duration of estrus in sheep
BEZERRA, Francisca Jéssica Silva; LEITÃO, Ingryde Paula Aragão; PEREIRA, Leda Maria Costa; LIMA, Monalisa Sousa Dias; FONSECA, Jeferson Ferreira da; OLIVEIRA, Maria Emilia Franco; TEIXEIRA, Dárcio Ítalo Alves.
Ci. Anim.;
30(04, Supl. 2): 284-288, 2020. graf
Artigo
em Português
| VETINDEX
| ID: vti-32043
Resumo
Study evaluated the use of new and re-utilized CIDR® to increase the reproductive breeding efficiency of the Santa Inês (SI) and Morada Nova (MN). In the synchronization protocol, 40 sheep was divided into four groups: MN with re-utilized CIDR®; MN with new CIDR®; SI with re-utilized CIDR® and SI with new CIDR®. The protocollasted for 15 days. At D0, females received CIDR®. Between D7 and D9, ovarian superstimulation was inducedby two doses application with a 12-hour break of p-FSH. Estrus confirmation was evaluated with ruffians, and the duration determined with the first and last mounts. The ovulation was determined by B-mode ultrasound and color Doppler. All animals of the experiment showed signs of estrus after removal of the device and there was no difference between treatments (p>0.05). In Treatment 1 (T1, CIDR® used), the beginning of estrus was 22.3±1.53h and in Treatment 2 (T2, new CIDR®) was 22.9±1.64h. In estrus duration, T1 and T2 was similar (21.6±1.81 and 22.2±0.63, respectively). Conclusion: the treatments are efficient to induce and synchronize estrus, with satisfactory results in their duration.(AU)
Biblioteca responsável:
BR68.1
Localização: BR68.1
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