Heifers become sexually mature and breedable when buffalo heifers and crossbred cow heifers gain body weight of 250-300 and 225-250 kg, respectively. This stage should be attained at approximately 24-30 and 18 months in buffalo and crossbred heifers, respectively.
Buffaloes/cows come in estrus after every 20-21 days and length of estrous cycle varies between 18-24 days.
During estrus cycle, buffaloes and crossbred cows remain in estrus for 12-24 and 24-36 hours, respectively.
In bovine, mating/insemination should be performed during mid to end of estrus phase.
Artificial insemination (AI) is the best and successful way to get a buffalo/cow pregnant.
No. The person doing AI should have thorough knowledge about reproductive organs and true estrus signs. He/she must be well experienced in performing AI in animals.
No. It does not indicate presence of uterine infection if blood comes couple of days post-estrus commencement. It reflects the end of estrus phase or occurrence of ovulation.
Pregnancy diagnosis should be done at approximately 30 and 60-90 days post-insemination by ultrasound and per-rectal examination, respectively.
Immediately separate the animal from rest of the herd and seek expert advice to diagnose the cause of abortion. Animal shed and surroundings should be washed and cleaned properly.
There is relaxation of pelvic ligaments and let down of milk about 1-2 days before parturition. Animal becomes little anxious and passes mucus string from vulva.
