| Penulis/Author |
Ir. Panjono, S.Pt., MP., Ph.D., IPM., ASEAN Eng. (1) ; Prof. Dr. Ir. Ali Agus, DAA., DEA., IPU., ASEAN Eng. (2); Prof. Ir. Tety Hartatik, S.Pt., Ph.D., IPM (3); Dr. Ir. Sigit Bintara, M.Si., IPU., ASEAN Eng. (4); Prof. Ir. Ismaya, M.Sc., Ph.D. (5); Prof. Dr. Ir. Budi Prasetyo Widyobroto, DESS., DEA., IPU., ASEAN Eng. (6); Prof. Ir. I Gede Suparta Budisatria, M.Sc., Ph.D., IPU., ASEAN Eng. (7); Prof. Pascal Leroy (8); Nicolas Antoine-Moussiaux (9) |
| Abstrak/Abstract |
This study was conducted to observe characteristics and preweaning growth traits of calves born from crossbreeding between Wagyu and
Belgian Blue (BB) bulls with Brahman Cross (BX) dams. The experiment
was conducted to compare two different crosses Belgian Blue (BB) x BX,
Wagyu x BX and also with BX pure breed (BX x BX). In the first two
crosses, we used Artificial Insemination (AI), while in the third natural
mating occurred. The number of calves in the experiment was 18 from the
first cross (BB-crossed), 17 from the second cross (Wagyu-crossed), and 15
from the third (BX).BB The calves were raised together with their dams until
they reached weaning age in 180 days. The data collected was analyzed by
Kruskal-Wallis Test and Mann-Whitney Test for significant differences. The
coat colors of BB-crossed calves were predominantly black (77.22%), and
all Wagyu-crossed calves were red; whereas BX calves' coat colors vary:
37.5% black, 31.25% red, and 31.25% white. There was no significant
difference among groups in body size (except the withers height) and weight
at birth. The BB-crossed, Wagyu-crossed and BX calves showed the preweaning growth on body length of 0.15±0.03, 0.17±0.03 and 0.11±0.03
cm/day; withers height of 0.18±0.02, 0.14±0.02 and 0.10±0.02 cm/day; heart
girth of 0.32±0.05, 0.24±0.03 and 0.16±0.03 cm/day and daily body weight
of 0.74±0.13, 0.62±0.06 and 0.39±0.11 kg/day respectively. The average
daily gain of body length on BB-crossed and Wagyu-crossed calves was
higher (P<0.05) than that of BX calves. The average withers height, heart
girth, and body weight daily gain of BB-crossed calves were higher (P<0.05)
than those of Wagyu-crossed calves and Wagyu-crossed calves were higher
(P<0.05) than those of BX calves. It is concluded that crossing Brahman
Cross dams with Belgian Blue and Wagyu bulls improves body size and
weight gain of calves; further, crossbreeding with Belgian Blue bulls gives
better improvement than that with Wagyu bulls. |
