Evaluation of scrotum development of charolais bulls of different ages in performance tests

J. Tözsér, M. Mézes, N. Nagy, Z. Domokos

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Abstract

The investigations were carried out in two (a, b) farms in the years 1992-1994. Charolais bulls (n=375) of different ages were involved in the investigations. The scrotal circumference of the young bulls (sire candidates) was measured at the widest point of the scrotum. The average scrotal circumferences of the Charolais bulls were the following at the various places: A: in 1992, age 6-7 months n=50, x=19.3 cm; in 1993, age 13 months n=15, x=33.8 cm; B: in 1992, age 7-7.5 months n=51, x=19.8 cm; in 1993, n=21, age 14 months x=35.4, age 18 months x=34.2; n=40, age 9 months x=24.2; in 1994, age 11 months x=30.0, age 13.5 months x=33.4 cm; n=97, age 13.5 months x=33.8 cm. The relationships of the scrotal circumference to body weight and to age were as follows: herd A r=0.24-0.65, r=0.11-0.46; herd B r=0.22-0.71, r=0.21-0.72, respectively. The correlation coefficients between subsequent scrotal circumferences were also calculated: herd A, r=0.57-0.91; herd B, r=0.37-0.87. This correlation between subsequent scrotum measurements suggested the possibility of reducing the costs of performance tests.

Original languageEnglish
Pages (from-to)291-296
Number of pages6
JournalActa Agronomica Hungarica
Volume46
Issue number3
Publication statusPublished - Dec 1 1998

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Keywords

  • Reducing the costs of performance test
  • Scrotal circumference
  • Subsequent scrotum measurements
  • Young bulls

ASJC Scopus subject areas

  • Agronomy and Crop Science

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