The Influence of Feed Energy and Protein Level on Meat Quality at „Hubbard F15” Broiler Chickens

Adela Marcu, Ioan Vacaru-Opriş, Adrian Marcu, Marioara Nicula, Dorel Dronca, Bartolomeu Kelciov

Abstract


In this paper was studied the influence of feed energy-protein level on the carcasses characteristics (participation ofthe cut parts from the whole carcasses structure and meat/bone ratio) and meat chemical composition from differentanatomical regions at broiler chickens belonging „Hubbard F15” hybrid, slaughtered at 42 days old. Broilers weredivided in three groups: control group (Lc) and two experimental groups, which had received feed compound withdifferent level of energy and protein (Lc-according standard; Lexp1-higher by 10% and Lexp2-lower by 10%). Afterslaughter, on each group were determined carcass characteristics, using gravimetric measurements and chemicalcomposition of meat, using STAS methods. For participation quota of the cut parts from the whole carcassesstructure were registered the highest values at Lexp1 group for thighs and breast, and at the Lexp2 group were thelowest values for these parts and the highest values for the other remaining parts from carcasses. The meat/bonesratio has registered values from 3.66/1, at Lexp2 group up to 4.07/1, at Lexp1 group. For chemical composition ofmeat, in the breast muscles was a greater amount of proteins, and the situation was reversed in the muscles of thethighs and drumsticks. Consequently, after chemical composition assessment in the studied muscles at Lexp1 groupwas found the highest protein content and lowest lipids content, as compared with Lc and Lexp2 groups. At the Lexp1group, feed with higher content protein and energy level have positively influenced participation quota of the cutparts in the whole carcasses structure (breast and thighs), the meat/bone ratio and the chemical composition of meat(proteins and lipids).

Keywords


broiler chicken; carcasses; chemical composition of meat; meat/bones ratio

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

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