Allometric growth of non-carcass components in crossed lambs

Ciência Rural

Iraides Ferreira Furusho Garcia¹  Tharcilla Isabella Rodrigues Costa Alvarenga¹  Juan Ramon Olalquiaga Perez¹  Amelia Katiane De Almeida¹  Sarita Bonagurio Gallo¹  Idalmo Garcia Pereira¹  Nadja Gomes Alves¹  Flávio Augusto Pereira Alvarenga¹ 

关键词: allometry;    growth;    crossbreed;    body development;    sheep;    alometria;    crescimento;    desenvolvimento corporal;    cruzamento;    ovinos;   

DOI  :  10.1590/0103-8478cr20130489

来源: SciELO

【 摘 要 】

Males and females, including purebred Santa Inês lamb (SI) and crosses between Santa Inês dams and Texel (TxSI), Ile de France (IFxSI) and Bergamasca (BxSI) sires were feedlot finished and slaughtered at 15, 25, 35 and 45kg live weight. After slaughter, the following non- carcass components were weighed and calculated the allometric growth. Lungs of BxSI males grew faster than those of SI and TxSI. Trachea/esophagus in SI and TxSI males grew slower than IFxSI and BxSI. Kidneys BxSI males grew faster than TxSI and IFxSI. Livers of female TxSI lamb grew more rapidly than those of females in the other genetic groups. In both males and females, the rumen/reticulum grew faster in the TxSI group than SI and BxSI groups.

【 授权许可】

CC BY   
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