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| Kwiecień,M; Kasperek,K; Tomaszewska,E; Muszyński,S; Jeżewska-Witkowska,G; Winiarska-Mieczan,A; Grela,ER; Kamińska,E. |
| ABSTRACT The aim of the study was to determine the impact of caponisation of Polbar (Pb) and Greenleg Partridge (Zk) breeds on the production performance, carcass composition, and the nutrient content and fatty acid profile in the breast and thigh muscles and abdominal fat. From 18 weeks of age to the end of the experiment, the Zk capons were significantly heavier than the cocks. The Zk capons had higher (p≤0.05) weight and share of breast and leg muscles. At 24 weeks of age, we noted an increase in the total content of n-3 PUFA and linolenic acid C18:3 in the breast muscles of the Zk and Pb capons. The content of PUFA and n-3 PUFA in thigh muscles and the n6/n3 ratio were reduced in the Pb capons at 24 weeks of age, compared with the Zk cocks.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass quality; Muscle; Polbar; Greenleg Partridge; Capon. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000300583 |
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| Tomaszewska,E; Muszyński,S; Dobrowolski,P; Kwiecień,M; Winiarska-Mieczan,A; Świetlicka,I; Wawrzyniak,A. |
| ABSTRACT The aim of this study was to evaluate the effect of adding zinc (Zn) mineral supplements from organic (ZnGly) and inorganic (ZnO) sources to growing male Ross 308 chickens on the mechanical, geometric, and histomorphometrical parameters of long bones. A corn-soybean meal basal diet was supplemented with Zn at 50 or 100 mg·kg-1 of a premix, except the control group (0 suppl). The serum concentration of insulin-like growth factor 1 was higher in the ZnGly50 group compared with the control group. Positive influence of Zn on the femur is highlighted when considering the significant increase in parameters such as mean relative wall thickness, and maximum elastic and ultimate strengths after Zn administration. Zinc supplementation did not affect tibial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone; Chelate; Chicken; Histomorphometry; Zinc. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100159 |
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