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Crossbreeding in Beef Cattle using Terminal Sires: Evaluation of Beef Breeds Aberdeen-Angus, Hereford, Gelbvieh, Brangus, Salers and Simmental - Couverture souple

Pala, Akin

 
9783639235241: Crossbreeding in Beef Cattle using Terminal Sires: Evaluation of Beef Breeds Aberdeen-Angus, Hereford, Gelbvieh, Brangus, Salers and Simmental
Couverture souple
ISBN 10 : 363923524X ISBN 13 : 9783639235241
Editeur : VDM Verlag Dr. Müller, 2010

Synopsis

Calves sired by Gelbvieh were the heaviest at weaning. Gelbvieh-Hereford dams had the heaviest calves at weaning, heaviest calves at birth and the highest milk yield. Calves of Brangus-Hereford dams were the heaviest at weaning and calves of Brangus sires were the heaviest at birth. The differences between Gelbvieh and Brangus were never significant. Angus ranked last in all weight traits. In thickness, however, Angus ranked after Gelbvieh with 80 per cent thickness one calves instead of Brangus. Angus calves were not heavier than Brangus calves in any of the data sets but had thicker muscles. Angus crossbred dams and purebred sires had the highest calving ease. This is expected because they ranked lowest for birth weight. Although Angus ranked last for weight traits, it became the most productive dam breed when reproduction rate was taken into consideration. Angus had the highest weaning weight per cow exposed in all data sets evaluated. Gelbvieh-Hereford and Brangus-Hereford produced more milk than Angus-Hereford. This result is consistent with results of weight trait analyses; cows producing more milk had heavier calves.

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Présentation de l'éditeur

Calves sired by Gelbvieh were the heaviest at weaning. Gelbvieh-Hereford dams had the heaviest calves at weaning, heaviest calves at birth and the highest milk yield. Calves of Brangus-Hereford dams were the heaviest at weaning and calves of Brangus sires were the heaviest at birth. The differences between Gelbvieh and Brangus were never significant. Angus ranked last in all weight traits. In thickness, however, Angus ranked after Gelbvieh with 80 per cent thickness one calves instead of Brangus. Angus calves were not heavier than Brangus calves in any of the data sets but had thicker muscles. Angus crossbred dams and purebred sires had the highest calving ease. This is expected because they ranked lowest for birth weight. Although Angus ranked last for weight traits, it became the most productive dam breed when reproduction rate was taken into consideration. Angus had the highest weaning weight per cow exposed in all data sets evaluated. Gelbvieh-Hereford and Brangus-Hereford produced more milk than Angus-Hereford. This result is consistent with results of weight trait analyses; cows producing more milk had heavier calves.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2010
Langue
anglais
ISBN 10 
363923524X
ISBN 13 
9783639235241
Reliure
Broché
Nombre de pages
112
Coordonnées du fabricant
non disponible
Personne responsable
non disponible