This thesis investigated the effect of addition of garlic oil extract to the diet 72 brojlerovým Ross 308 taps on their live weight This thesis investigated the effect of additions of garlic oil extract to the diet 72 broilers Ross 308 on their live weight, the proportion of the carcase, yields of breast and thigh muscle content of selected components of the meat, which was dry matter, crude protein and fat, and in particular sensory properties of breast and thigh muscles. Cockerels were divided into 3 groups (one control and two experimental), the compound feed containing 0 g; 5 g and 10 g of garlic oil extract per 1 kg of compound feed. The main objective was to determine carcass yield of breast and thigh muscle and especially the sensory evaluation of breast and thigh muscle from control and experimental groups. The addition of garlic oil extract had a positive statistically significant effect (P > 0.05) on the yield of breast and thigh muscle. Within the sensory evaluation of breast muscles was statistically significant positive effect demonstrated only for the addition of 10 g of garlic extract oil per 1 kg of the mixture and its chewiness (P < 0.01) and juiciness (P < 0.05). Within evaluation thigh muscle was statistically significant positive effect demonstrated only for the addition of 10 g of garlic extract oil per 1 kg of the mixture and its juiciness (P < 0.01). Additions of garlic oil extract had a negative effect on the valuation parameters except insignificantly lower values (P > 0.05) in the context of nitrogen in both muscle, dry matter content of breast muscle and thigh muscle yield percentages . The addition of garlic oil extract did not cause a negative sensory evaluation of breast and thigh muscle suggests that a dose of 10 g garlic oil extract per 1 kg of compound feed achieve better results in comparison with a lower addition of this extract.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:250653 |
| Date | January 2014 |
| Creators | Janíčková, Tereza |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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