LACTATION PERFORMANCE OF HOLSTEIN AND HOLSTEIN X GYR CATTLE UNDER INTENSIVE CONDITION IN A SUBTROPICAL ENVIRONMENT
Data from 289 milk yield records of purebred Holstein, ¾ Holstein ¼ Gyr and ½ Holstein ½ Gyr were used to compare milk production traits of these genotypes in an intensive operation in a subtropical region of northwestern Mexico. The performance traits studied were: 305-d milk yield days (P305),...
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Format: | Article |
Language: | English |
Published: |
Universidad Autónoma de Yucatán
2011-08-01
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Series: | Tropical and Subtropical Agroecosystems |
Subjects: | |
Online Access: | http://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/964 |