A new approach in production system of local layer in Iraqi Kurdistan Region

Abstract

The study was conducted to investigate the effect organic system on performance of local layer as a first attempt to apply organic system in the area. A total 360 one-day-old local mixed colored hatched at Evan hatchery- Erbil from eggs brought agricultural research Baghdad chicks were reared in 18 pen s indoor 2×2 m for the first 18 weeks of bird’s age and each box represented a replicate contains of 20 chicks At beginning of birds assigned to the same condition and fed the weekly requirement according to Isa Brown guide (2018) on two types of fees as commercial and organic .Birds were randomly divided into six (6) treatment groups and three (3) replicates per treatment- first treatment (T1): as control their full requirements according to Isa Brown layers guide (2018) fed commercial feed reared indoor house, second treatment (T2): birds fed organic feed full requirements according to Isa Brown layers guide (2018) reared indoor house, third treatment (T3): birds fed 75% of full requirements commercial feed + pasture indoor and outdoor, fourth treatment (T4): birds fed 75% full requirement organic feed + pasture indoor and outdoor, fifth treatment (T5): birds fed full requirements according to Isa Brown layers guide (2018) commercial feed + pasture indoor and outdoor housed, while sixth treatment (T6): birds fed full requirements according to Isa Brown layers guide (2018) organic feed + pasture indoor and outdoor housed. At the beginning of week 19 all birds had free access to pasture through a hole from indoor to the outdoor except control T1 and T2 birds housed indoor. The outdoor area measured 2 × 10 m (1 m2/bird) for each box and separated by fence. The outdoor area designed to provide bird a natural behavior and covered with alfalfa (Medicago sativa).The results of this study indicates that haugh unit was (67.14). Total UFA and n-3 in T2 of local egg were higher (P<0.01) than other treatments. T3 had higher content of n-6 (21.13). Birds in T6 of local strain had higher (P<0.01) percentage of amino acids among treatments. The significant difference found between treatments of local strains profit for both eggs and hen with eggs. Significant differences found among treatments for sensory evaluation of local egg. T6 had higher (P<0.01) score of overall acceptances. . in this study results showed that local strain able to perform under organic and commercial condition. The egg properties and fatty, amino and sensory evaluation of local eggs under different production system were differed. Profits from eggs and eggs with hens were different depending on the production systems.