Performance, feeding behavior and digestibility of nutrients in lambs with divergent efficiency traits

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Minas Gerais (UFMG)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade Federal de Lavras (UFLA)-
Autor(es): dc.contributorUniversity of New England-
Autor(es): dc.creatorLima Montelli, Natália Ludmila Lins [UNESP]-
Autor(es): dc.creatorAlmeida, Amélia Katiane de [UNESP]-
Autor(es): dc.creatorRibeiro, Carolina Resende de Freitas-
Autor(es): dc.creatorGrobe, Morgana Dayane-
Autor(es): dc.creatorAbrantes, Melina Aparecida Felipe-
Autor(es): dc.creatorLemos, Guilherme Silva-
Autor(es): dc.creatorFurusho Garcia, Iraides Ferreira-
Autor(es): dc.creatorPereira, Idalmo Garcia-
Data de aceite: dc.date.accessioned2022-02-22T00:23:16Z-
Data de disponibilização: dc.date.available2022-02-22T00:23:16Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.smallrumres.2019.07.016-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198010-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198010-
Descrição: dc.descriptionThe aim was to evaluate the performance, feeding behavior and nutrient digestibility of lambs ranked according to residual feed intake (RFI) and residual intake and gain (RIG). A total of 102 male lambs (½ Dorper ½ Santa Inês; 70 d; 24.6 ± 3.71 kg) were used. The mean values of the RFI classes were -0.101, 0.0, and 0.091, and those of the RIG classes were 1.980, -0.032 and -2.369, for efficient, medium and inefficient lambs, respectively. Average daily gain was not correlated to RFI, but was correlated to RIG. Physiological parameters (i.e., respiratory frequency and heart rate), ruminal movement and rectal temperature were similar between efficient and inefficient lambs (i.e., for RFI and RIG; P > 0.05). Efficient RFI and RIG lambs spent less time ruminating and drinking water and more time eating (P < 0.05). Rumination time is a good feeding behavior marker to distinguish efficient and inefficient lambs (i.e., RFI and RIG). Inefficient feedlot lambs exhibited greater dry matter intake; this difference was not reflected in digestibility traits. These results may assist in the identification of more efficient animals to lower production costs and mitigate the environmental impact of lamb production systems.-
Descrição: dc.descriptionDepartment of Animal Science Veterinary School Federal University of Minas Gerais (UFMG)-
Descrição: dc.descriptionDepartment of Animal Science São Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences-
Descrição: dc.descriptionDepartment of Animal Science Federal University of Lavras (UFLA)-
Descrição: dc.descriptionDepartment of Animal Science Environmental and Rural Science University of New England-
Descrição: dc.descriptionDepartment of Animal Science São Paulo State University (UNESP) School of Agricultural and Veterinarian Sciences-
Formato: dc.format50-56-
Idioma: dc.languageen-
Relação: dc.relationSmall Ruminant Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectFeed-
Palavras-chave: dc.subjectNutrients-
Palavras-chave: dc.subjectPerformance-
Palavras-chave: dc.subjectRumination-
Título: dc.titlePerformance, feeding behavior and digestibility of nutrients in lambs with divergent efficiency traits-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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