Heritability of Growth Traits of Simmental Cattle in Balai Pembibitan Ternak Unggul-Hijauan Pakan Ternak (BPTU-HPT), Padang Mengatas, West Sumatra, Indonesia
Abstract: This study is
proposed to determine the heritability of growth traits of Simmental cattle in
BPTU-HPT Padang Mengatas, West Sumatra. Data were collected by observations and
measurements of the cattle in the field, completed by the secondary data from
BPTU-HPT recorded from 2010 to 2016. Data for heritability were collected from
455 offsprings belonged to 15 sires. Weight and body size are two parameters
used to estimate the heritability and breeding value, the heritability was
analyzed between weaning and yearling age and breeding value was only
calculated for weaning age. The data were analyzed by using paternal half-sib
correlation method. The heritability between bulls and offspring was varied in
weaning age, ranged from 0.24 to 0.97, and yearling age was showed high
heritability in all parameters, ranged from 0.56 to 0.64. The heritability of
weaning weight was 0.50 ± 0.19, weaning body size (shoulder height, body length
and heart girth) was 0.97 ± 0.31; 0.24 ± 0.13; 0.44 ± 0.19, yearling weight was
0.56 ± 0.08 and yearling body size was 0.58 ± 0.08; 0.64 ± 0.09 and 0.56 ± 0.08
respectively. This result found that the highest heritability was shoulder
height and the lowest heritability was body length. Relative breeding value
above 0 represented by six sires with the highest breeding value was 37.12.
Sires with the highest BV can be selected for future breeding in BPTU-HPT
Padang Mengatas, while the lowest BV is recommended to be culled.
Keywords: heritability,
Simmental cattle, weaning weight, yearling weight
Penulis: D. E. Putra, Sarbaini,
T. Afriani, H. Suhada, F. Arlina
Kode Jurnal: jppeternakandd170298
