Glycerol as source of energy in broiler chicken fattening
2011
Kroupa, L.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Ustav Vyzivy, Zootechniky a Zoohygieny | Suchy, P.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Ustav Vyzivy, Zootechniky a Zoohygieny | Strakova, E.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Ustav Vyzivy, Zootechniky a Zoohygieny | Herzig, I.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Ustav Vyzivy, Zootechniky a Zoohygieny
The objective of this study was to verify the possibility of replacing soybean oil in a diet with glycerol, and investigate the effect of glycerol on performance indicators and health in broiler chickens. The experiment was performed on 122 one-day-old chickens that were divided based on sex into two control (C) groups (30 females and 31 males) and two experimental (E) groups (30 females and 31 males). Half (50%) of the soybean oil in diets used in the experimental groups was replaced with glycerol at a ratio of 1:2. On 15, 32 and 38 day of age E chickens of both sexes that were fed with diets containing glycerol showed significantly higher mean body weight than C birds. At the end of the experiment, the mean weight of C chickens was 2.078 kg, whereas the mean weight of E chickens was 2.341 kg. In females, the overall consumption of diets within 38 days of fattening was 3.588 kg in C and 4.011 kg in E animals, in C males, it was 3.915 kg, in E males, it was 4.366 kg. Feed conversion in E chickens was better, being 1.84 kg in C females and 1.81 kg in E females, and 1.73 kg in C males and 1.72 kg in E males. In conclusion, the optimum amount of glycerol in feed for poultry is 5%. This study presents an original solution to optimize feed formula by replacing plant oil with glycerol.
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