The study determined the effects of year and season of birth and sex or parturition on body weight and gain body and milk production of Brown Swiss cattle. It was used records from productive events of 2003-2010; the data are analyzed in factorial arrangements relevant and conducted in Randomized Complete Design. The average birth weight was 46.35 ± 7.01 kg, with differences to year and season of birth and sex factors (P = 0.05). Weight at year reached 252.37 ± 27.11 kg and gains to 180 days and one year of age were 103.68 ± 11.74 and 207.25 ± 27.61 kg, respectively; there were no differences for the factors. During the first year, recording the live weight showed linear and growing trend. Milk production has varied from 2911.96 to 3551.77 kg (P = 0.05); also they showed variations per year and season of calving and lactation number. Real milk production varied considerably (from 28...

The study determined the effects of year and season of birth and sex or parturition on body weight and gain body and milk production of Brown Swiss cattle. It was used records from productive events of 2003-2010; the data are analyzed in factorial arrangements relevant and conducted in Randomized Complete Design. The average birth weight was 46.35 ± 7.01 kg, with differences to year and season of birth and sex factors (P = 0.05). Weight at year reached 252.37 ± 27.11 kg and gains to 180 days and one year of age were 103.68 ± 11.74 and 207.25 ± 27.61 kg, respectively; there were no differences for the factors. During the first year, recording the live weight showed linear and growing trend. Milk production has varied from 2911.96 to 3551.77 kg (P = 0.05); also they showed variations per year and season of calving and lactation number. Real milk production varied considerably (from 28...

El estudio determinó los efectos del año y época de nacimiento y sexo o partos sobre el peso y ganancia corporal y la producción de leche de bovinos Brown Swiss. Se utilizaron registros de eventos productivos del 2003-2010; los datos se analizaron en arreglos factoriales pertinentes y conducidas en Diseño Completo Randomizado. El promedio peso al nacer fue 46.3+-7.01 kg, habiendo diferencias para factores año y época de nacimiento y sexo (P<=0.05). El peso al año alcanzó 252.37+-27.11 kg y las ganancias a 180 días y año de edad fueron 103.68+-11.74 y 207.25+-27.61 kg, respectivamente; no existiendo diferencias para los factores. Durante el primer año el peso vivo mostró tendencia lineal y creciente. La producción de leche ha variado de 2911,96 a 3551,77 kg (P<=0.05); también mostraron variaciones por año y época de parto y número de lactancia. La producción real varió...

The study determined the effects of year and season of birth and sex or parturition on body weight and gain body and milk production of Brown Swiss cattle. It was used records from productive events of 2003-2010; the data are analyzed in factorial arrangements relevant and conducted in Randomized Complete Design. The average birth weight was 46.35 ± 7.01 kg, with differences to year and season of birth and sex factors (P = 0.05). Weight at year reached 252.37 ± 27.11 kg and gains to 180 days and one year of age were 103.68 ± 11.74 and 207.25 ± 27.61 kg, respectively; there were no differences for the factors. During the first year, recording the live weight showed linear and growing trend. Milk production has varied from 2911.96 to 3551.77 kg (P = 0.05); also they showed variations per year and season of calving and lactation number. Real milk production varied considerably (from 28...

The study determined the effects of year and season of birth and sex or parturition on body weight and gain body and milk production of Brown Swiss cattle. It was used records from productive events of 2003-2010; the data are analyzed in factorial arrangements relevant and conducted in Randomized Complete Design. The average birth weight was 46.35 ± 7.01 kg, with differences to year and season of birth and sex factors (P = 0.05). Weight at year reached 252.37 ± 27.11 kg and gains to 180 days and one year of age were 103.68 ± 11.74 and 207.25 ± 27.61 kg, respectively; there were no differences for the factors. During the first year, recording the live weight showed linear and growing trend. Milk production has varied from 2911.96 to 3551.77 kg (P = 0.05); also they showed variations per year and season of calving and lactation number. Real milk production varied considerably (from 28...