Effect of proenzyme on digestibility of nutrients by quails at different levels of brewer's dried grain in mixed fodders
DOI:
https://doi.org/10.31548/bio2017.05.018Abstract
The research was conducted in the conditions of the research laboratory of feed additives of the National University of Life and Environmental Sciences of Ukraine. The response of Pharaon quails to supplements of proenzyme with brewer's dried grain was studied during 5 wk post hatching. The basal brewer's dried grain concentration was 40 g/kg in a diet not containing proenzyme. Diets were offered ad libitum. Brewer's dried grain was supplemented in three graded levels up to 120 g/kg. Proenzyme was implemented in graded levels to 0.35-0.9 g/kg. Group of 100 quails were allocated to each brewer's dried grain level. Feed digestibility study was conducted with separate quails of the same hatch beginning on d 16 and d 30 (4 quails per treatment). It was proved that the feed digestibility of depended on the age and did not significantly depended on the level of brewer's dried grain in combination with proenzyme. Data from the balance study showed basically the same response of quails, but the estimated
optimum in brewer's dried grain concentration was lower (80 g/kg). The addition of proenzyme to mixed fodders increased the digestibility of fibre in quails of the second and third groups by 2.7 % (p <0.05) and 2.2 % (p <0.05) compared with the control. Quails of the fourth group were digested better by 1.1%.
Keywords: quail, mixed fodder, brewer's dried grain, proenzyme, feed digestibility, organic matter, protein, fat, cellulose, nitrogen free extract
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