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Archivos de Zootecnia

versión impresa ISSN 0004-0592

Resumen

ROIS, D. et al. Growth of Mos chickens in various seasons of the year: comparison with an industrial chicken strain. Arch. zootec. [online]. 2011, vol.60, n.231, pp.329-332. ISSN 0004-0592.  http://dx.doi.org/10.4321/S0004-05922011000300003.

In this work we study the growth and feed intake of male Galiña de Mos breed to reach the socalled minimal commercial weight stipulated by many authors and the market at around 2.1 kg weight, in two different seasons of the year, winter and spring, compared with a blonde chicken strain commonly used in Galicia, Sasso T-44. A hundred and thirty male, sexed, chicken T-44 and 400 Mos chicken unsexed (until to 4 weeks of age, when males were separated for the study) were raised in the Centro de Recursos Zooxenéticos de Galicia under extensive conditions. It was observed a significantly higher feed intake, both in the native breed and the industrial hybrids, in chicken reared in winter compared to those of spring, due to the influence of different temperatures observed. There were no major differences in the age at which reached 2.1 kg weight, since Mos's reached the 87 and 89 days in spring and winter respectively and 68 and 70 days in the T-44.

Palabras clave : Poultry; Native breeds; Animal genetic resources; Body weight; Feed efficiency.

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