Effect of live body weight and method of synchronization on ovulation, pregnancy rate and embryo and fetal loss in buffalo heifers

Autor: Francesca Licitra, Anna Balestrieri, Gianluca Neglia, Georgios Petrovas, Donato de Nicola, Angela Salzano, Luigi Esposito
Přispěvatelé: Esposito, Luigi, Nicola, Donato de, Balestrieri, Anna, Petrovas, Georgio, Licitra, Francesca, Salzano, Angela, Neglia, Gianluca
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Animal Reproduction
Animal Reproduction, Volume: 16, Issue: 4, Pages: 859-863, Published: 25 NOV 2019
Popis: This study aimed to assess the influence of live body weight (LBW) and age on reproductive performance in buffalo heifers synchronized by different treatments. The study was carried out on 146 Mediterranean buffalo heifers (mean age 25.3 +/- 13.4 months, LBW 424 +/- 47 kg), divided into 2 homogeneous groups and synchronized by Ovsynch-TAI Program (OVS; n = 72) or double prostaglandin administered 12 days apart (PGF; n = 74). All the buffaloes were inseminated twice and follicle dimensions and ovulation rate (OR) were assessed by ultrasound 24 and 48 h post-insemination. Pregnancy was assessed on day 25, 45 and 90 post-insemination and the incidence of late embryonic (LEM) and fetal (FM) mortality were respectively recorded. Data were analyzed by ANOVA, Chi-square test and multiple logistic regression. The LBW was significantly (P
Databáze: OpenAIRE