Título

Carcass and non-carcass components of pelibuey ewes subjected to three levels of metabolizable energy intake

Autor

JORGE ANTONIO RUIZ RAMOS

ALFONSO JUVENTINO CHAY CANUL

JUAN CARLOS KU VERA

JUAN GABRIEL MAGAÑA MONFORTE

ARMANDO GOMEZ VAZQUEZ

ALDENAMAR CRUZ HERNANDEZ

ROBERTO GONZALEZ GARDUÑO

ARMIN JAVIER AYALA BURGOS

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

BIOLOGÍA Y QUÍMICA - (CTI) MEDICINA Y CIENCIAS DE LA SALUD - (CTI) Hair ewes - ([urn:issn:2007-9028]) Carcass characteristics - ([urn:issn:2007-9028]) Energy balance - ([urn:issn:2007-9028]) Undernutrition - ([urn:issn:2007-9028])

Resumen o descripción

ABSTRACT. The aim of this study was to evaluate carcass and non-carcass components of adult Pelibuey ewes subjected to three levels of metabolizable energy intake (MEI). Eighteen 3-year-old Pelibuey ewes with body weight (BW) of 37.6 ± 4.0 kg and body condition of 2.5 ± 0.20 were randomly assigned to three groups of six ewes each in a completely randomized design. Ewes were housed in metabolic crates and fed three levels of MEI: low (L), medium (M), and high (H) for 65 d. Feed o ered was adjusted every 15 d based on ewe BW. The MEI was 0.247, 0.472 and 0.532 MJ/ kgBW0.75d −1 for L, M and H levels, respectively. Data recorded at slaughter were weights of viscera, o al and carcass. Carcass was split at the dorsal midline into two equal halves, weighed, and chilled at 6◦C for 24 h. The left half carcass was then divided into ve cuts, each of which was dissected into fat, muscle and bone, and weighed separately. Hot and cold carcass weight and hot carcass dressing were greater for the H group than for the L group (p < 0.05). The weights of rib/ ank and shoulder were di erent among groups (p < 0.05). Weights of empty rumen, liver, lungs and trachea, skin and internal fat were greater for the H group than for the L group (p < 0.05). A high level of MEI improves commercial dressing percentage due to increased lean meat and fat deposition with a lower proportion of bone in the carcass of adult Pelibuey ewes.

Fecha de publicación

30 de abril de 2016

Tipo de publicación

Artículo

Recurso de información

http://redi.uady.mx:8080/handle/123456789/1126

Formato

application/pdf

Fuente

urn:issn:2007-9028

Idioma

Inglés

Cobertura

Generación de conocimiento

Audiencia

Investigadores

Repositorio Orígen

Repositorio Digital Institucional de la Universidad Autónoma de Yucatán

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