The performance and dressing value of broiler rabbits in relation to Akomed R and weaning age | Užitkovost a jatečná hodnota brojlerových králíků v závislosti na přípravku Akomed R a době odstavu
2010
Zita, L., Česká zemědělská univerzita, Praha (Czech Republic).Fakulta agrobiologie, potravinových a přírodních zdrojů, Katedra speciální zootechniky
The aim of the study was to evaluate the effect of the Akomed supplement, containing acids of medium chain length, the age of weaning, and their interactions on growth, feed consumption, mortality and some parameters of carcass value in broiler rabbits. Hyplus rabbits were weaned at 21 and 34 days of age (20 ones per group; grcup 21 and 34). Within each weaning rabbits were then divided into two groups according to feed mixtures (group C and P). Control feed mixture (K) contained 9.5 MJ ME and 17.7% crude protein. Experimental feed mixtures (P) had the same composition and was supplemented by 1% Akomed R and 0.5% lipase. Rabbits were then divided into four groups (21P and 21K, 34K and 34P). At 77 days of age a complete carcass dissection was performed. Live weight was affected neither by the addition Akomed R and lipase, nor the age of weaning. Rabbits weaned at 34 days of age fed with experimental feed mixture had the highest live weight at the end of the experiment (3063 g). Feed consumption in later weaned rabbits was higher in comparison with the early weaned rabbits. There was a positive effect of Akomed R and lipase on feed consumption. In the experiment no mortality was recorded. Some parameters of carcass values were more affected by weaning age than by the addition of Akomed R and lipase. Higher dressing percentage was in rabbits weaned at 34 days of age (55.9 and 56.8%). On the contrary, the proportion of the hind part and thighs was higher in early weaned rabbits. The share of kidney fat was positively influenced by the supplement of Akomedu R and lipase.
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