Crosses between Korean Native Cattle and Hereford

Performance of Hereford and two-breed rotational crosses of Hereford with Angus and Simmental cattle: I. Calf production through weaning.

Cow size, reproductive traits and calf performance through weaning were evaluated in a range environment for Simmental (S) x Hereford (H) and Angus (A) x H crosses in two-breed rotations and straightbred H. Data were grouped into seven dam breed categories: straightbred Hereford (H), crossbred F1 S x H cows (SH), S x H cows of low percentage H (SHS), S x H cows of high percentage H (HSH), F1 A ...

Effects of Heterosis in Hereford, Angus, and Shorthorn Rotational Crosses

National Genetic Evaluation (System) of Hanwoo (Korean Native Cattle)

Hanwoo (Also known as Korean native cattle; Bos taurus coreanae) have been used for transportation and farming for a long time in South Korea. It has been about 30 yrs since Hanwoo improvement began in earnest as beef cattle for meat yield. The purpose of this study was to determine the trend of improvement as well as to estimate genetic parameters of the traits being used for seedstock selecti...

Eosinophilic myositis in a slaughtered Korean native cattle

Histopathological findings of eosinophilic myositis in the carcass of a slaughtered Korean native cow are presented. Lesions contained massive fibrous septae with vacuolar changes in some lesions, and the hypercontraction and rupturing of muscle bundles, with replacement by eosinophils. Necrosis and severe eosinophil infiltration were observed. Sarcoplasmic fragmentation and atrophy developed. ...

Heterosis on Body Weights in Crosses Among Brahman, Santa Gertrudis and Cheju Native Cattle

SUHHARY Data obtained from 428 calves (59 Cheju native cattle 60 Br hm. ' a an Gertrudis and 269 crossbreds) were analyzed to es t~mate main eff ' d h. f ects of mental factors an eterosis. Nat~ng type, sex 0 .calf, and year of significant sources of variation on most of the we~gh ts at preweani weaning periods. Brah;-.c.,' x Chej u native cat tIe c ro ss showed hetero:~ .... on birth weight. H...