Morphometric studies on postnatal development of testis of Indian Murrah buffalo (Bubalus bubalis)

Morphometric studies have been made on the testis of 20 Murrah buffaloes during postnatal development. Testicular weight in relation to body weight and testicular volume, increased from 0.01% to 0.07% and 1.05 to 235.68 cm(3) from 1 day-old to adult (>6 years) buffalo bulls respectively. Tubular volume percentage showed initial decrease from 77.0% at birth to 61.0% at 6 months of age and again increased to 81.0% in adults. Tubular diameter showed increase from birth (50.10 mu) to adult (221.13 mu). Buffalo bulls attained puberty at 3-3.5 years of age. Total seminiferous tubular length, an index of the level of sperm production, was 4186 mu in adults and total surface area was 2.90 mu(2) in adults.