Zeranol implants were administered to 250 crossbred heifer calves at 1, 6 or 9 mo of age to evaluate growth, reproduction and calving performance. Heifers were assigned to eight treatment groups with 25 animals per group. Two additional groups of 25 heifers each were used to study the effects of multiple implants at two levels of nutrition on heifer performance. Implants at 1 mo of age (brandin...

In our previous study, it was demonstrated that the administration of anion salts, which slightly lower the dietary cation-anion difference (DCAD), in the prepartum period is safe and effective for preventing milk fever in multiparous cows. In the present study, several clinico-pathological constituents in serum and urine, which might be related to milk fever, were analyzed using stored samples...

The term fibropapilloma is used to refer to a papilloma virus induced benign tumor in the skin. A 6 month old Holstein calf was referred to the veterinary hospital of this school having multiple masses in the vaginal roof. The animal had 4-5 pinkish closely associated masses attached to the dorsal commissure of the vaginal roof about 5 cm deep into the vagina. Histopathological examination reve...

description of a rare recurrent gartner’s duct cyst associated with yeast infection in a crossbred heifer isreported. the recurrence was caused by uncontrolled yeast infection that showed in vitro sensitivity tooxytetracycline. administration of local clotrimazole and systemic oxytetracycline as per recommendedtherapeutic dose regime resulted in complete recovery.

The National Dairy Heifer Evaluation Project was a cooperative, USDA-sponsored project involving state agricultural departments, the Cooperative Extension Service, the National Agricultural Statistics Service, and the Animal and Plant Health Inspection Service. A series of retrospective and prospective descriptive surveys using a multiple list and area frame sampling technique were conducted. I...

Fascioloides magna from a Brahman heifer recently imported from the USA is recorded for the first time in South Africa. The pathological findings are briefly described. The possibility of this parasite becoming established in this country is also discussed.

A 3-yr study was conducted with heifers (n = 170) whose dams were used in a 2 x 2 factorial arrangement of treatments to determine the effects of late gestation (LG) or early lactation (EL) dam nutrition on subsequent heifer growth and reproduction. In LG, cows received 0.45 kg/d of a 42% CP supplement (PS) or no supplement (NS) while grazing dormant Sandhills range. During EL, cows from each l...