GROWTH INTENSITY OF FEMALE CALVES DEPENDING ON THE MILK FEEDING TECHNOLOGY
L. Degola, A. Karps
Pagini: 287-295
Publicat: 1 Jan 2013
Vizualizări: 258
Descărcări: 18
Rezumat: The goal of research was to estimate growth intensity of female calves depending on the milk feeding technology. The trial carried out in Latvia with 14 to 104 days old calves one Holstein breed sires 26 daughters, who were divide into 2 equal groups of 13 animals each. Individual cages held calves were fed milk (individual group – IG) from the buckets 2 times a day (by 2.5 kg milk), but free group held calves (automatic group – AG) of milk machine during small portions (by 300g) all day. The calf feeding milk substitute was used, the amount was limited, depending on the age of calves. During the trial, were accounted the consumption of feed and individual calves live weight each month, calculated daily weight gain and animal growth rate intensity. The results were processed with MS Excel statistical data processing program.The trial results showed that AG calves live weight at the end of the study, was significantly higher (p <0.05) than the IG calves, respectively, 99.3 ± 2.28 and 93.8 ± 1.55 kg. The live weight gain per day differ significantly between groups (p <0.05), and were higher for AG calves, in the trial periods of the 44 – 74 and 74 -104 days, but from 14 – 44 days was no difference. The calves had the highest growth rate intensity during the period of 14 – 44 days in both groups. The significant differences in growth rate intensity of calves (p <0.05) between the IG and AG group was only during the period from 44 – 74 days. This investigation showed that the higher growth rates intensity showed AG group calves at equal feed after 44 days age, but till this age the milk feeding technology did not significantly influence calves growth.
Cuvinte cheie: cow, female calf, milk feeding technology, live weight gain, growth
Citează acest articol: L. Degola, A. Karps. GROWTH INTENSITY OF FEMALE CALVES DEPENDING ON THE MILK FEEDING TECHNOLOGY. Journal of International Scientific Publications: Agriculture & Food 1, 287-295 (2013). https://www.scientific-publications.net/en/article/1002925/
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