Relationship of Testicular Weight to Age and Scrotal Circumference of Holstein Bulls

Scrotal Circumference and Its Relationship with Testicular Growth, Age, and Body Weight in Tho Tho (Bos indicus) Bulls

The present study was undertaken to assess the relationship between the scrotal circumference and testicular parameters with body weight and age in Tho Tho bulls (Bos indicus), which were maintained at around the villages of National Research Centre on Mithun (ICAR), Jharnapani, Nagaland, India. A total of 32 Tho Tho bulls were selected and divided into four groups according to their age and ea...

Relationship of body weight to testicular size and consistency in growing Holstein bulls.

The relationship between 1,203 measurements of scrotal circumference and testicular consistency, usually made at 6-month intervals, and body weight in 411 Holstein bulls, primarily 6 to 72 months of age, were analyzed. All bulls were weighed within 14 days of testicular measurement. The relationship between body weight in kg (Y) and bull age in months (X) is described by the regression equation...

Relationship between Scrotal Circumference, Quantitative Testicular Traits and Growth Performance in Tropically Adapted Yearling Beef Bulls Differing in Age

Immunohistochemical Localization of Ghrelin in Testicular Tissues of Holstein Bulls

Ghrelin, a 28-amino acid acylated peptide, was identified as the endogenous ligand for the growth hormone (GH) secretagogue receptor and its role in reproduction has recently been established. It is believed that the site of ghrelin expression in testes may indicate its role in local regulation. This study investigated the immunohistochemical (IHC) localization of ghrelin in Holstein bull testi...

Growth Rates of Hip Height, Scrotal Circumference and Weight for Purebred Hereford and Angus Bulls

Story in Brief Seasonal differences and growth rates were studied on 60 Hereford and Angus bulls born in the spring and fall calving seasons at Oklahoma State University. Hip height, scrotal circumference and weight measurements were taken over the two IO-month experiments. Season of birth had no influence on scrotal circumference for either Hereford or Angus bulls. Season of birth in Angus bul...