Brahman bulls reach sexual maturity

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Bundle and Save with our Exclusive Gift Sets! Shop Now! The Brahma bull was used to create new breeds like the Beefmaster, Braford, and Brangus.

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E Corresponding author. Email: viv. Nutritional perturbation during gestation alters male reproductive development in rodents and sheep.

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The revised standards have resulted from recent advances in understanding as to what constitutes normal scrotal size in the Australian herd based on the "Bull Power" project. Scrotal circumference measurements were mostly taken when bulls were within — kg live weight and — days of age. Measuring scrotal circumference can indicate the likelihood that a bull has reached puberty, and whether testicular development is within the normal range.

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Livestock Research for Rural Development 15 10 Citation of this paper. To study the relationship between testicular growth and semen quality in peripuberal Brahman bulls, records from 37 randomly selected weaned Brahman bulls at two seed-stock farms in Venezuela were used.

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Littlejohn, M. Roberts, M. Bedenbaugh, A.

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The Brahman cattle is mainly used for breeding and the meat industry. Variables such age, weight, and scrotal circumference were equally important in the estimation of sexual maturity in male Bos indicus. An elevation in testosterone levels is an indicator that an acceleration in physical and testicular growth is approaching. The variables body weight and scrotal circumference which are important in the estimation of sexual maturity are dependent on testosterone levels in zebu cattle according to literature.

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In Australia and other parts of the world, there is a trend towards using bulls at yearling age 12—18 months. This allows introduction of superior genetic material into herds a year earlier than normal, resulting in faster genetic improvement. Their introduction has the potential to allow breeders to extend the working lives of bulls by a year or more, lowering the bulls costs of a herd. This extra workload is achieved at the time in their lives when they are young, lean, fit and exuberant.

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