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The effect of dietary supplementation of crushed flaxseed and soybean oil on ovarian function in postpartum Jersey crossbred cows was studied. Total 30 postpartum normally calved cows from 2nd to 4th lactation were randomly divided into three equal groups. Cows from group T1 and T2 were fed with dietary supplementation of crushed flaxseed @ 15% of DM requirement from day 25 to day 70 postpartum and with soybean oil @ 3% of DM requirement of animal from day 50 to day 70 postpartum in addition to routine feed respectively, whereas cows from Group T3 was considered as control, supplemented with routine feed. Follicular dynamic study with the help of USG was carried out at 24 hrs interval before the first injection of GnRH of Ovsynch protocol and during Ovsynch protocol (Day 0 to Day 9) of synchronization, which was implemented from day 60 postpartum in all the groups. It was observed that mean number of class I follicles was significantly increased in T2 group, whereas the mean number of class II and total number of follicles were significantly increased in T1 and T2 groups on day 0. During the synchronization period the mean number of class I, class II, total numbers of follicles and preovulatory follicles size were significantly larger in T1 and T2 groups. It was concluded that dietary supplementation of crushed flaxseed and soybean oil helps in increasing class I, class II, total number of follicles and size of preovulatory follicle in crossbred cows. [ABSTRACT FROM AUTHOR]

This study was planned to determine the embryonic developments in 12 Thoroughbred mares. The follicular growths were recorded in mares from day 8 postpartum till ovulation daily by using ultrasound machine with 7.5 MHz transrectal probe. All mares which were detected with largest follicle size and a characteristic uterine pattern of edema (cart-wheel like appearance) were mated with stallion every second day. Ultrasonography was carried out daily from day 14th post-mating till day 40 (ovulation = day 0) for detection of early of pregnancy and to monitor the conceptus. Embryonic vesicle was observed for the first time on day 14 in all mares with mean size of 10.25±0.59 mm. The fixation of vesicle, loss of spherical shape of vesicle, detection of embryo, detection of heart beats, detection of allantoic sac and start of fetal ascent were observed on 16.75±1.52, 20.66±1.86, 25.08±2.23, 28.16±2.45, 27.83±2.43 and 27.83±2.43 days post-mating, respectively. It was concluded that ultrasonic detection of early pregnancy and embryonic developments studies is an accurate tool and simple way for estimating the age of pregnancy in Thoroughbred mares. [ABSTRACT FROM AUTHOR]

The study was conducted in Akola district of Maharashtra with 59 dairy farmers to their socioeconomic status and measure level of knowledge about dairy technology. Socio-economic status of dairy farmers was poor and most of the respondents were observed with average knowledge level regarding dairy technology and from the study it is clear that extension agencies have to be more active to enhance the knowledge level through target oriented extension training programmes. [ABSTRACT FROM AUTHOR]

A Study was conducted to determine the synchronization response with Ovsynch+CIDR protocol in cows. Pre synchronization medicinal treatment was given to the cows before synchronization. Total 10 cows were synchronized with an intravaginal CIDR containing 558 mg of progesterone for 7 days, starting on day 0 at the time of first GnRh injection. Cows were injected with PGF2α (Cloprostinol, 500 µg) IM, on day 7 and the CIDR were removed on day 7 and on day 9 second GnRh injection 2.5 ml I/M was injected. Fixed Time Artificial Insemination was done 16- 24 hr after second GnRh injection. Estrous response was observed 100 per cent. The time required for onset of oestrous was 58.80 ±2.65 hrs., whereas the duration of oestrus observed was 23.80±0.55 hrs. The incidence of intense, intermediate and weak estrus was observed 40, 40 and 20 per cent, respectively and the first service conception rate was 40 per cent. The Ovsynch+CIDR protocol induces better estrus response and first service conception rate in post partum cows. [ABSTRACT FROM AUTHOR]