Performance of Ayrshires and Ayrshire x Zebu Crosses in Iringa Region

Authors

  • P. M. J. Katyega Livestock Training Institute Buhuri, P. 0 . Box 1483. Tanga

Keywords:

Cow, Breeding, Production, Veterinary

Abstract

Performance results of  Ayrshires,  3/ 4 (0.75) Ayrshire  1/4  (0.25) TSZ (Tanzania  Shorthorn Zebu) and 1 / 2 (0.5) Ayrshire 1/ 2 (0.25) TSZ reared  at Livestock Experimental Station, Sao Hill are presented. Mean age at first calving was 51 months for Ayrshires and 48 months for Ayrshire X TSZ crosses. Mean calving intervals were 489, 381, and 467 days for Ayrshires,  3/ 4 (0.75) Ayrshire  1/ 4 (0.25) TSZ, and 1/2 (0.25) Ayrshire 1/ 2 (0.25) TSZ, respectively.  As for milk production, all genotypes produced less than 1,550 kg per lactation

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Published

31-10-1982

How to Cite

Katyega, P. M. J. . (1982) “Performance of Ayrshires and Ayrshire x Zebu Crosses in Iringa Region”, Tanzania Veterinary Journal, 4(4), pp. 50–53. Available at: https://tvj.sua.ac.tz/vet2/index.php/TVJ/article/view/293 (Accessed: 4 June 2026).

Issue

Vol. 4 No. 4 (1982)

Section

RESEARCH ARTICLES

License

All articles are available under the terms of the Creative Commons Attribution License (CC BY). You are free to use, reproduce, redistribute in any medium or format provided the original publication in this journal is cited. This License will be applicable for all articles including those published before May, 2025