Effect of dietary level and the period of feeding soybean and linseed oil in mixtures on rearing results, slaughter value and meat quality characteristics of broiler chickens
Journal Title: Rośliny Oleiste - Oilseed Crops - Year 2013, Vol 34, Issue 2
Abstract
The feeding experiment has been carried out on three groups of ROSS 308 broiler chickens (K, D-1, D-2), 40 birds in each group (4 replicates of 10 birds). Starter mixtures were fed to the chickens for the first 3 weeks, and they were followed by grower mixtures applied for the next 3 weeks. The mixtures contained wheat and triticale ground (50/50), extracted soybean meal, mineral-vitamin-amino acid supplements as well as soybean and linseed oils. The oils constituted the experimental factor and they were added to the mixtures as follows: group K (control) – 3% soybean oil + 3% linseed oil in both mixtures, D-1 – 3% soybean oil + 3% linseed oil in starter and 6% soybean oil in grower mixtures, D-2 – 6% soybean oil in starter and 3% soybean oil + 3% linseed oil in grower. The feeding did not influence significantly on rearing results and slaughter analysis of chickens, with the exception of adiposity of carcasses. More (P ≤ 0.05) abdominal fat and skin with subcutaneous fat were noticed in the chickens fed the experimental mixtures (group D1 and D2). Significant decrease of the crude ash (P ≤ 0.01) and dry matter in the muscles of experimental birds compared to the control chickens was shown. In both muscles did not prove the subgroups differences in the amounts of saturated and unsaturated fatty acids (P > 0.05), however significant differences (P ≤ 0.05) were observed in the share of monounsaturated fatty acids and polyunsaturated fatty acids as well as PUFA n-6 : PUFA n-3 ratio (P ≤ 0.01). The obtained results allow to recommend the use of the mix of soybean oil and linseed oil on the level of 3% in grower mixture, because it allows to obtain optimal from 4 : 1 to 1 : 1 ratio of n-6 PUFA : n-3 PUFA.
Authors and Affiliations
Maria Osek, Anna Milczarek, Renata Świnarska
Keywords
Related Articles
- EP ID EP59763
- DOI 10.5604/12338273.1101402
- Views 101
- Downloads 0
Efektywność zapyleń pyłkiem traktowanym promieniowaniem gamma u roślin z rodzaju Brassica
W prezentowanej pracy oceniano efektywność zapyleń pyłkiem traktowanym promieniowaniem gamma. Materiał roślinny użyty do badań stanowiły 4 genotypy rzepaku jarego (Brassica napus) oraz gorczyca etiopska (B. carinata). Py...
Occurrence of stem canker symptoms and seed yield of selected cultivars of winter oilseed rape in field experiments in Great Poland
Yield of agricultural crops is determined by numerous factors, such as the choice of suitable cultivar, soil quality and other environmental conditions, selective pressure of pests and diseases, agrotechnical practices,...
Pierwsza podwójnie ulepszona odmiana gorczycy białej (Sinapis alba L.)
W Oddziale IHAR-PIB w Poznaniu prowadzone są prace nad ulepszaniem składu jakościowego nasion gorczycy białej. Zarejestrowana w 2006 roku odmiana Bamberka o niskiej zawartości kwasu erukowego i wysokiej zawartości glukoz...
The effect of sulphur fertilization on chemical composition of seeds of different breeding forms of winter oilseed rape in the conditions of diverse nitrogen rates
The experiment was carried out in order to investigate the effect of sulphur fertilization (0, 15, 30 i 60 kg S·ha-1) in diverse nitrogen (60, 120 i 180 kg N·ha-1) fertilization conditions on the content of fat, protein...
Wykorzystanie krzyżowania oddalonego do poszerzania zmienności genetycznej w rodzaju Brassica sp.
Krzyżowanie roślin genetycznie oddalonych pozwala na wprowadzenie korzystnych cech z form dzikich do form uprawnych. Niezgodność genetyczna występująca między krzyżowanymi gatunkami często uniemożliwia efektywne krzyżowa...