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Effects of pearl millet silage ammoniation with urea on carcass and meat quality of lambs.
de Carvalho, Gleidson G P; de Freitas, Poliane Meire D; Santos, Edson M; Araújo, Gherman G L; de Oliveira, Juliana S; Rodrigues, Thomaz Cyro G de C; de Araujo, Maria Leonor G M L; de Assis, Dallyson Yehudi C; Roça, Roberto de O; de Delbem, Nara Laiane C; Lomele, Renata L; Leite, Laudi C; Rodrigues, Carlindo S.
Afiliação
  • de Carvalho GGP; Department of Animal Science, School of Veterinary Medicine and Animal Science, Federal University of Bahia, Salvador, Brazil.
  • de Freitas PMD; Department of Animal Science, School of Veterinary Medicine and Animal Science, Federal University of Bahia, Salvador, Brazil.
  • Santos EM; Federal University of Paraíba, Areia, Brazil.
  • Araújo GGL; Embrapa Semiárido , Petrolina, Brazil.
  • de Oliveira JS; Federal University of Paraíba, Areia, Brazil.
  • Rodrigues TCGC; Department of Animal Science, School of Veterinary Medicine and Animal Science, Federal University of Bahia, Salvador, Brazil.
  • de Araujo MLGML; Department of Animal Science, School of Veterinary Medicine and Animal Science, Federal University of Bahia, Salvador, Brazil.
  • de Assis DYC; Department of Animal Science, School of Veterinary Medicine and Animal Science, Federal University of Bahia, Salvador, Brazil.
  • Roça RO; Faculty of Agronomic Sciences (FCA), UNESP, Botucatu, Brazil.
  • de Delbem NLC; Graduate Student in Animal Science, FMVZ, UNESP, Botucatu, Brazil.
  • Lomele RL; Graduate Student in Animal Science, FMVZ, UNESP, Botucatu, Brazil.
  • Leite LC; Federal University of Recôncavo da Bahia, Cruz das Almas, Brazil.
  • Rodrigues CS; Instituto Federal de Educação, Ciência e Tecnologia Baiano (IFBaiano), Uruçuca, Brazil.
J Anim Physiol Anim Nutr (Berl) ; 102(5): 1154-1166, 2018 Oct.
Article em En | MEDLINE | ID: mdl-29959800
This study aimed to evaluate the effect of pearl millet silage ammoniated with urea on lamb carcass characteristics and meat quality. Thirty-two noncastrated crossbred lambs at 4-5 months of age, with an average initial body weight of 17.39 ± 2.16 kg, were distributed into four treatments in a randomized block experimental design with eight animals per treatment. Experimental diets were composed of pearl millet silage ammoniated with four levels of urea (0%, 2%, 4% and 6%, on dry matter basis (DM). Carcass conformation and fatness decreased linearly (p < 0.05). Except for the fat content, the proximate composition was not influenced (p < 0.05) by the diets. Meat lightness and yellowness increased linearly (p < 0.05). There was no effect of diets (p > 0.05) on cooking losses or shear force. The levels of oleic and erucic fatty acid levels in the meat decreased linearly (p < 0.05), whereas linoleic and eicosadienoic acids, polyunsaturated fatty acids, PUFA:SFA ratio and ω6 contents increased (p < 0.05). Pearl millet silage ammoniated with urea allows for the production of good-quality lamb meat, with greater concentrations of polyunsaturated fatty acids. However, lambs fed diets with pearl millet ammoniated with up to 6% lead to a reduction of carcass characteristics without significantly affecting loin-eye area possibly associated with low palatability of the additive used. The lower acceptance of the silages with higher levels of urea is due to the ammonia retention in the material is attributed to the ammonization process. Thus, in spite of the benefits on lamb meat quality, it is suggested that the use of this additive in the ammonization of tropical forages be carried out with care, in limits of up to 6%.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Silagem / Ovinos / Digestão / Carne Limite: Animals Idioma: En Revista: J Anim Physiol Anim Nutr (Berl) Assunto da revista: CIENCIAS DA NUTRICAO / FISIOLOGIA / MEDICINA VETERINARIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Silagem / Ovinos / Digestão / Carne Limite: Animals Idioma: En Revista: J Anim Physiol Anim Nutr (Berl) Assunto da revista: CIENCIAS DA NUTRICAO / FISIOLOGIA / MEDICINA VETERINARIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha