Abstract:
This study aimed to determine the response of oxygen supplementation during penetration to
hatching weight and body weight gain in Mojosari. The sample used was 300 fertile eggs of
Mojosari ducks. Sampling by purposive sampling. The research method was an experiment with
a completely randomized design with 3 x 2 factorial patterns and five repetitions. The first factor
was Oxygen (O2) supplementation which consisted of three levels, namely without O2
supplementation (A1), O2 supplementation in incubators up to 21% (A2) levels, O2
supplementation in incubators up to 25% (A3) levels. In comparison, the second factor was the
time of O2 supplementation, which consists of two variations: the first to the 2nd day and the
25th day until hatching (B1) and the 25th day until hatching (B2). Variables considered include
hatch weight and weight gain. The results showed a significant (p < 0.01) interaction between O2
supplementation level and time. Their interactions responded to the hatching weight and weight
gain of Mojosari ducks in the starter period. The highest hatching weight was in the treatment
without supplementation (control), while the highest body weight gain was in the O2
supplementation treatment, up to 21% given on the first, second, and 25th day until hatching. |
