OBJECTIVE To determine prevalence of infection with tritrichomonas fetus in a bull population; assess influence of age, breed, and grouping; assess effects on measures of cow performance (pregnancy rate, weaning percentage, weaning weight); and estimate test sensitivity. DESIGN Epidemiologic study. ANIMALS 1,383 bulls and records for 28,471 cows bred by these bulls in the immediate past bre...

the aim of the present study was to investigate the effect of in vitro supplementation of selenium on fresh and frozen spermatozoa quality of buffalo (bubalus bubalis) bulls. five healthy buffalo bulls (5 ejaculates from each bull) were used. each ejaculate was diluted at 37 ˚c with tris-based extender containing 0 (control), 0.5, 1, 2, 4 and 8 μg ml-1 sodium selenite and the sperm motility and...

BACKGROUND: Bovine leukemia virus (BLV) is an oncogenic deltaretrovirus causing a persistent lifelong infection of B lymphocytes. In addition to the domestic cattle, the virus can also infect water buffaloes. OBJECTIVES: Recent investigations have demonstrated the increasing prevalence of BLV infection among cattle population in Iran. Large popul...

Background: Artificial insemination (AI) has been used for increasing genetic potential of animals in production while application of AI has been restricted in buffalo due to low freezing ability and fertility of frozen-thawed buffalo spermatozoa. So improvement in buffalo sperm cryopreservation may enhance the breeding programs of this valuable farm animal. Semen processing is one of the major...

b a ckground: west nile virus (wnv) and rift valley fever virus (rvfv) are mosquito-borne viral diseases. the objective of this study was to investigate the rvfv and wnv infections as serologically in different mammalian species (cattle, horse, goat, sheep and water buffalo) in the northern turkey. m e t hods: blood samples randomly collected from 70 each cattle, horse, sheep, goat and water bu...

myiasis caused by the larvae of c.bezziana has been reported in man, cattle, cats, water buffalo, sheep, goats, horses, donkeys, dogs, camels and elephants from asia and africa. although human infestation o with this parasite is commonly found in cattle-raising areas, cases of urogenital myiasis are rarely reported. this is the first cases report of urogenital infestation with the larvae of c. ...

conclusions bovine rotavirus presents 6% of calf diarrhea in pakistani cattle and buffalo samples. the vp4 and vp6 genes show closed relationships with bovine rotavirus reported from indian isolates. background group a bovine rotaviruses (brv) are one of the main factors of neonatal calf diarrhea and mortality around the world. the current study was carried out to assess the genetics of brv cir...

Rift Valley fever (RVF) is endemic in many countries in Sub-Saharan Africa and is responsible for severe outbreaks in livestock characterized by a sudden onset of abortions and high neonatal mortality. During the last decade, several outbreaks have occurred in Southern Africa, with a very limited number of cases reported in Botswana. To date, published information on the occurrence of RVF in wi...

Aim: The present study was carried out to examine the relationships among frozen-thawed semen fertility, physical parameters, seminal quality, and testosterone concentration in Murrah buffalo bulls. Materials and Methods: A total of 30 breeding Murrah buffalo bulls (either progeny tested or under progeny testing program) were randomly selected from two government bull farms in Punjab. None of t...

Pregnancy rate evaluation of the profitability of any beef cattle operations, the profit or loss is one of the most important factors determining. Emphasis and focus on adequate nutrition and reproductive management beef cattle herd, but, unfortunately, most placed little emphasis on beef cattle operations kept. However, each beef cattle breeding season during a typical cow-calf operation in 15...