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Dried tomato pomace supplementation to reduce lamb concentrate intake: Effects on growth performance and meat quality

Author:
Valenti, Bernardo, Luciano, Giuseppe, Pauselli, Mariano, Mattioli, Simona, Biondi, Luisa, Priolo, Alessandro, Natalello, Antonio, Morbidini, Luciano, Lanza, Massimiliano
Source:
Meat science 2018 v.145 pp. 63-70
ISSN:
0309-1740
Subject:
alpha-linolenic acid, animal performance, diet, gamma-tocopherol, growth performance, lambs, linoleic acid, lipid peroxidation, meat, meat quality, oxidative stability, raw meat, thiobarbituric acid, thiobarbituric acid-reactive substances, tomato pomace, vitamin A
Abstract:
The effect of dried tomato pomace (DTP) was tested on lamb performances, meat fatty acids and oxidative stability. For 36 days, one group of lambs (n = 7; CON) was fed a commercial concentrate, while the other group (n = 7; DTP) received DTP in addition to CON diet. The administration of DTP reduced (P < .05) concentrate intake, with no effect on animal performances. The DTP treatment tended to increase total polyunsaturated fatty acids (PUFA; P = .075), PUFA n-6 (P = .071), α-linolenic acid (P = .096) and increased linoleic acid (P < .05), γ-tocopherol (P < .001) and retinol (P < .001) in meat. In raw meat, DTP treatment increased L* (P = .059), b* (P < .05), C* (P = .052) and H* (P < .05) values compared to CON, while lipid oxidation was not affected. In meat homogenates incubated with pro-oxidants, DTP tended to reduce 2-thiobarbituric acid reactive substances (TBARS; P = .088). Therefore, DTP supplementation decreased the consumption of commercial concentrate without detrimental effects on animal performances and meat quality traits.
Agid:
5984802