Correlation between estrus onset and ovarian parameters in dairy goats
نویسندگان
چکیده
Abstract This study assessed the effects of social dominance on behavioral estrus and ovarian parameters dairy goats subjected to synchronous induction during non-breeding season. Synchronous was induced in 23 allocated collective pens. Ovarian ultrasonography performed at 12 h intervals from device removal ovulation. Upon onset (EO) detection, were immediately removed Dominance scored according EO relation each pen, with HD - high dominants (<36 h; n = 8), MD medium (36 48 10) LD low (>48 5). Goats underwent flexible time artificial insemination (FxTAI) EO. The response 100.0%. interval longer (P<0.05) (53.7 ± 6.5 h) than (37.9 5.5 (32.3 6.6 h), while ovulation similar (P>0.05) among all groups. FxTAI compared other groups (P<0.05). In conclusion, although hierarchy influenced EO, parameters, including ovulation, not affected.
منابع مشابه
Reproductive parameters of dairy goats submitted to estrus synchronization with prostaglandin F2α associated or not to hCG at estrous onset
The objective of this study was to evaluate the efficiency of two doses of PGF associated or not to hCG on the associated reproductive parameters in dairy goats. A total of 29 goats received two doses of 30μg d-cloprostenol latero-vulvar at a 10 day intervals (Day 1 and Day 10). The does were allocated according to body weight and body condition score into two treatments, to receive hCG (250IU)...
متن کاملOvarian function and estrus in dairy cows during early lactation.
The onset of ovarian function and occurrence of estms were monitored in two groups of Holstein cows over the first 90 days postpartum. Group 1 consisted of 36 animals housed in a free stall area and observed continuously for estrus with closed circuit television and a time lapse videorecorder. Group 2 consisted of 33 cows housed in tie stalls with estrus detected by the herdsmen. Blood samples ...
متن کاملInduction of estrus in non-lactating dairy goats with different estrous synchrony protocols.
The objective of this study was to evaluate two protocols of estrous synchronization in non-lactating Toggenburg goats. Nineteen goats were allocated, according to body condition score and weight, into two groups (A and B) and evaluated utilizing two treatments (T1 and T2). Animals in the T1 and T2 groups received an intravaginal sponge (day 0) containing 60 mg medroxyprogesterone acetate for 6...
متن کاملCorrelation between antisperm antibody and Semen parameters
Introduction: The precise mechanism for antisperm antibody (ASA) mediated fertility impairment is unclear. In the male reproductive tract, ASA may have an adverse impact on sperm maturation and function or overall semen quality. In this study, the percentage of ASA-IgA was determined by the direct Mixed Agglutination Reaction (MAR) test in men from infertile couples in Khorramabad city. Further...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ciência Animal Brasileira
سال: 2022
ISSN: ['1518-2797', '1809-6891']
DOI: https://doi.org/10.1590/1809-6891v22e-70813e