Effect of diameter of pre-ovulatory follicle (POF) and body condition score (BCS) of buffaloes on pregnancy rate following ovsynch-TAI were studied in 100 post-partum anestrus buffaloes. The size of POF was determined through sonography on day 10 of protocol. BCS of buffaloes were estimated at the time of AI. Pregnancy was con rmed per-rectally on day 60 post-AI. Pregnancy rate in buffaloes wi...

Background: Ovsynch is one of the most adopted estrus synchronization protocols used for ovulation and fixed-time artificial insemination however, new corpus luteum (CL) induced by first GnRH treatment in inappropriately regressed with a single prostaglandin F2α. Inadequate CL regression reduces fertility. Considering this rationale, present research was implemented effect second F2 alpha durin...

An adrenocortical tumor originating in a female Osborne-Mendel rat was transplanted to intact and adrenalectomized males and to female rats of the same strain. The transplanted tumor grew best in intact males, less in intact females, and least in adrenalectomized males. The following changes characterized the animals bearing this tumor: atrophy of zona fasciculata and zona reticularis of the ad...

Received: Revised: Accepted: November 20, 2013 December 23, 2013 January 03, 2014 A 3-year old pug bitch was presented to the Referral Veterinary Polyclinic, I.V.R.I., Bareilly, with history of anestrus since last one year despite having normal body condition and appetite. Vaginal examination revealed normal genitalia without any abnormalities. For induction of estrus, bitch was treated with ca...

Dairy cattle raising has been developing rapidly although there were some troubles. Total dairy herd was more than 110,000 heads in the whole country, of which there were 59,958 heads in Ho Chi Minh City (June, 2006). It exceeded the Governmental plan for dairy development. However, some provinces could not keep their dairy development program continuously. They had invested on many aspects con...

Response to most estrous synchronization programs is improved in cycling females, compared to pre-pubertal heifers or anestrus cows. Cycling status is often monitored for research purposes by measuring progesterone concentrations in serum. Producers may want to use information on cyclicity status when determining which estrous synchronization program to use or as a component of their heifer sel...

Japanese Dairy Cattle Productivity Analysis is carried out based on Bayesian Network Model (BNM). Through the experiment with 280 Japanese anestrus Holstein dairy cow, it is found that the estimation for finding out the presence of estrous cycle using BNM represents almost 55% accuracy while considering all samples. On the contrary, almost 73% accurate estimation could be achieved while using s...

I NCREASING the number of lambings per year offers an important potential in increasing the efficiency of the sheep industry. Much progress has been made in recent years in inducing pregnancy in the ewe during anestrus. In order to approach two lamb crops per year, either very early weaning will have to be practiced or fertility induced in lactating ewes. Two injections of PMS (pregnant mare se...