Yumurtacı Tavuklarda Kekik (Oregano) ve L-karnitin’in Yem Katkısı Olarak Alternatif Zorlamalı Tüy Dökümü Programında Kullanılması

Abstract

This research was carried out in order to determine the effects of forced molting programs induced by feeding the hens an alfalfa based and low Na-Ca induction feed as an alternative to forced molting program with feed withdrawal and the effect of L-carnitine and Oregano plant in powder form as feed additives on the induction period parameters. A total of 1170 birds were divided into 13 groups. The trial was continued for a total of 36 days, with the first 14 days of adaptation and 22 days of force molting. A negative control group ( K ) which was neither forced molted nor provided with any feed additive substances in their diets Moreover, other three treatment groups ( M : Marbel powder, Y : Alfalfa, F : Low Ca-Na diet), were forced molted and one withhold feeding group was used for the study; the forced molted groups were supplied L-carnitine ( C ) (100 ppm) and dried oregano leaves ( O ) (5%) as a feed additive in designed individual diets ( MC, AC , FC, MO, AO, FO ) alone and in combination (50 ppm; 2.5%) in groups ( MCO, ACO, FCO ). In the light of this data it could be said that the live weight loss achieved with qualitative alfalfa meal feed restriction exceeds 30% and exceeds the live weight loss ensured by an 11 day feed withdrawal. Based on these parameters it is concluded that supplementing feed additives into alfalfa meal could be an alternative to the feed withdrawal method and alfalfa meal with a combination of L-carnitine and oregano plant has a positive impact on performance.