Testicular sizes of animals are important for identification of those with adequate sperm production. The aim of this study was to define the testicular and related size estimates that would be associated with optimal cauda epididymal sperm counts (ESC) in Sahel goats based on postmortem evaluations. A stratified quota sample population of 125 male goats inclusive of all testicular sizes was ta...

the effect of subcutaneous injections of vitamin c on the seminal characteristics of markhoz bucks (2–4-year-old) was studied. the bucks, trained to serve an artificial vagina, were randomly allotted into three equal groups (n = 4) and received daily either zero (1 ml normal saline; control group), or 20 (vitc20 group) or 40 (vitc40 group) mg per kg body weight vitamin c from july 06, 2006 to o...

The effect of subcutaneous injections of vitamin C on the seminal characteristics of Markhoz bucks (2–4-year-old) was studied. The bucks, trained to serve an artificial vagina, were randomly allotted into three equal groups (n = 4) and received daily either zero (1 mL normal saline; control group), or 20 (VitC20 group) or 40 (VitC40 group) mg per kg body weight vitamin C from July 06, 2006 to O...

OBJECTIVES Varicocele results from the abnormal dilation of the veins of the pampiniform plexus and is the most common identifiable cause of male infertility. It can develop during puberty and thus affect the testicular growth and function. The aim of this study was to determine the prevalence and the risk factors for the development of the varicocele among Bulgarian boys. METHODS In a prospe...

A total of 5,909 scrotal circumference and 5,373 tesricular consistency (tonometer) measurements were made on Holstein bulls in seven artificial insemination studs. Comparable measurements were made on 339Angus bulls. The multiple regression equation, Y = -4.67 + 47.26 log X 1 1 . 7 4 (log X)2), where ~f is scrotal circumference in cm and X is bull age in months, described the high rate of test...

AIM The present study compared the testicular cytology and histology between crossbred (Holstein-Friesian [HF] × Tharparkar) and purebred (HF and Tharparkar) bulls to find out differences if any. MATERIALS AND METHODS Four peripubertal bulls from each breed were utilized for the study. Through percutaneous needle aspiration biopsy, Sertoli and spermatogenic cells were extracted, and morphomet...

The breeding soundness evaluation (BSE) was used to evaluate Senepol (Bos taurus) bulls (n = 495) on St. Croix over a 7-year period. Young, unproven bulls (10-26 months of age) and breeding bulls (16 months to 8.5 years) were tested prior to sale or use in breeding. Inbreeding coefficients were determined for a subset of bulls (n = 290). The percentage of bulls passing the BSE increased (P < 0....

The objective of this study was to assess the effects of milk replacer and rumen inert fat on growth, testicular development, puberty, semen production and sperm motion characteristics of ram lambs reared under intensive management in semi-arid climatic conditions. Seven-day-old male lambs of Malpura breed (n=20) were divided equally into two groups. Up to weaning, the lambs in G1 group (contro...

Abstract Context A close link between body mass index (BMI) and female pubertal onset is well established. However, observations in boys remain inconclusive. Objective We aim to determine whether BMI as total central adiposity prepubertal Chilean associated with timing. Methods performed a longitudinal study which 494 from the Growth Obesity Cohort Study were followed starting birth throughout ...