A COMPARATIVE MORPHOLOGICAL STUDY ON URETHRAL PASSAGE AND PENIS OF UNCASTRATED AND CASTRATED BUCK OF BLACK BENGAL GOAT

Abstract

The urethra and penis of 50 black Bengal goat ( 25 uncastrated and 25 castrated ) were studied for the investigation of length and diameter of urethra and penis.The length and diameter of the different segment of urethra and penis of uncastrated buck were significantly higher than the castrated buck. The lengths of the pelvic urethra were 5.88 ± 0.111 and 4.58 ± 0.15 in uncastrated and castrated buck respectively. The length of the neck of the urinary bladder, root, body, sigmoid plexus, glans penis and urethral process of the penis in the uncastrated and castrated buck were 0.688 ± 0.156 and 0.38 ± 0.048, 5.02 ± 0.09 and 4.24±0.10, 23.48 ± 0.37 and 22.74 ± 0.43, 9.2 ± 0.107 and 8.18 ± 0.29, 1.92 ± 0.032 and 1.44 ± 0.10, 2.32 ± 0.029 and 1.78 ± 0.07 respectively. The diameter of the neck of the urinary bladder,root,body,sigmoid plexus,glans penis and urethral process of the penis in uncastrated buck and castrated buck were 1.94 ± 0.041 and 1.44 ± 0.05, 06 ± 0.049 and 3.3 ± 0.144, 2.63 ± 0.066 and 1.86 ± 0.08, 2.77 ± 0.90 and 2.18 ± 0.07, 1.81 ± 0.034 and 1.4 ± 0.06 , 0.66 ± 0.014 and 0.56 ± 0.05 respectively.The total length of penis in uncastrated and castrated buck were 30.42±0.459 and 28.42±0.553 respectively. The length and diameter of the urethral process, sigmoid plexus, and urethra at root of the penis and neck of the urinary bladder are clinically more important in both uncastrated and castrated black Bengal buck.