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| Vasta, Valentina; Ventura, Valentina; Luciano, Guiseppe; Andronico, Valeria; Pagano, Renato; Scerra, Manuel; Biondi, Luisa; Arvondo, Marcella; Priolo, Alessandro. |
| This study was designed to assess whether different grazing managements affect the appearance of organic volatile compounds (VOC) in lamb fat. Forty-two lambs were divided into four groups: 9 lambs were restricted in stall and fed concentrate (S group); 12 lambs grazed from 9 am to 5 pm (8 h group); 10 lambs grazed from 9 am to 1 pm (4hAM group) and 11 lambs grazed from 1 pm to 5 pm (4hPM group). After 72 days on feed the animals were slaughtered and the perirenal fat subjected to SPME-GC/MS analysis of VOC; the data were analyzed by stepwise discriminant analysis. The 6-methyl-2-heptanone and furanone, 2,5-dimethyl, 4-hydroxy-3(2H) allowed discrimination between the 4hAM and the 4hPM animals. These are the first results indicating that the time of the day... |
| Tipo: Journal paper |
Palavras-chave: Feeding and growth; Sheep and goats. |
| Ano: 2012 |
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| Vasta, Valentina; Italo Pagano, Renato; Luciano, Guiseppe; Scerra, Manuel; Caparra, Pasquale; Foti, Francesco; Cilione, Caterina; Biondi, Luisa; Priolo, Alessandro; Arvondo, Marcella. |
| The aim of this study was to assess whether different grazing management affect animal performance and meat fatty acid composition. Thirty-five lambs were divided into three groups: 12 lambs grazed from 9 am to 5 pm (8h group); 11 lambs grazed from 9 am to 1 pm (4hAM group) and 12 lambs grazed from 1 pm to 5 pm (4hPM group). The trial was conducted over 72 days. The 8h lambs had greater DMI (P < 0.0005) and final body weight (P < 0.05) than the 4hPM and 4hAM lambs while carcass weight was not different between the three groups. The meat of the 4hPM lambs contained greater (P < 0.05) percentages of polyunsaturated fatty acids, C18:2 cis-9 trans-11 and lower saturated fatty acids and C18:0 than the meat of the 8h and 4hAM lambs. It is concluded that... |
| Tipo: Journal paper |
Palavras-chave: Food security; Food quality and human health Sheep and goats. |
| Ano: 2012 |
URL: http://orgprints.org/19565/1/Vasta_eta%2Dl2012_Fatty_acids.pdf |
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