Effects of multiphase nutrition during the starter period on production performances of broilers | Efekti multifazne ishrane u starter periodu na proizvodne performanse brojlera
2010
Tolimir, N., Institut za primenu nauke u poljoprivredi, Beograd (Serbia) | Peric, L., Poljoprivredni fakultet, Novi Sad (Serbia) | Milosevic, N., Poljoprivredni fakultet, Novi Sad (Serbia) | Bogdanovic, V., Poljoprivredni fakultet, Beograd - Zemun (Serbia)
The objective of the present study was to investigate the effect of multiphase nutrition, i.,e. different mixtures used in broiler nutrition, whose protein content was reduced in several phases, on production performences of broilers. The study was performed on 1216 individually tagged chickens of the Ross 308 strain, separated by sex, and divided into four groups. The standard fattening technology, with four nutrition treatments, was applied during the trial period (1-21 days). Chickens of the first group (control) were fed diet containing 23 of proteins for the 1st to 21st day, while the protein content in the remaining three trial groups was reduced during the trial period in several phases. Based on processed data it can be concluded that different programmes of multiphase nutrition had resulted in different effects on production performances of male and female chickens. Multiphase nutrition at the end of the starter period (21st day) had no statistically significant effect on a body weight of male and female chickens, i.e. the reduction of the protein level in mixtures for broilers had no effect on the decrease of the body weight compared to control male (723.48 g) and female (680.66 g) chickens. At the same time, programmes of multiphase nutrition (T4) resulted in the most favourable feed conversion in male (1.468) and female (1.502) chickens, which is in favour of the application of multiphase nutrition, considering that the difference in feed conversion can be essential for accomplising positive economical results in the production.
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