) Abnormalities of semen of Black Bengal Goat in Bangladesh

ABSTRACT The study was conducted at the nuclear breeder farm of black Bengal goat belongs to the Department of Pathology, Faculty of Veterinary Science and Department of Animal breeding and Genetics, Bangladesh Agricultural University, Mymensingh from March to September, 2008. A total of 10 breeding bucks were used as experimental animal. The aim of the investigation was to analyze of goat semen by using Eosin-Nigrosin stain and Rose Bengal stain under differential interference microscope. The study included investigation of the age in month, ejaculation volume (ml), mass activity of the semen, spermatozoa motility (%), viable % spermatozoa and normal spermatozoa, and morphologically abnormal sperm especially in head that included the acrosome, midpiece, and tail. Semen was collected twice in a week from each buck by using Artificial Vagina method. Age of bucks were 14.9±4.1 months, ejaculate volume of semen was 0.5±0.3 ml, motility was 80.8±3.5 (%), mass activity was 4.The percentage of viable spermatozoa was 89.6±5.1 .The percentage of spermatozoa with midpiece was 6.9±2.5 and tail abnormalities was only 7.1±2.6 and that of with head abnormalities was 2.5±1.7. The morphologically normal spermatozoa were 90.84%