Hubungan luruh bulu primer dan sekunder dengan peningkatkan produksi telur

Abstract

The objective of the experiment is to study the correlation between primary and secondary feathers fall with the increasing pattern of egg production in chicken subjected to forced molting program. The research used 180 medium type chickens, strain Dekalb Warren, aged 84 weeks old. The research applied 2x2x2 factors and used complete randomized design in 5 times n;;plicatrons with 4 chickens for each repeat. The first factor was water supplying and without water supply.The second factor was the duration of no feeding for 10 and 5 days.The third factor was the amount of feed given during recovery period, that was 50% and 25% ofthe normal consumption. So, the total of the treatment offorced molting program applied were 9 treatments. Data obtained were analysed using analysis of variance (ANOVA), orthogonal comparison test and regression analysis. The result obtained showed that the fluctuation of the egg prosuction after forced molting program could be predicted to be based on the amount ofthe primary feather number 1 to 5, the secondary feather number 12 to 14 that fall at the day 11 to 25 after treatmen. Egg production could be predicted by using regression equation: Y = 44.06 + 4.60X 1 + 1.19 X 2 => r2=0.75.