Open AccessDistillers feeds and feed fractions of barley in the diets of laying hens
Author(s) -
Matti Näsi
Publication year - 1990
Publication title -
agricultural and food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.347
H-Index - 35
eISSN - 1795-1895
pISSN - 1459-6067
DOI - 10.23986/afsci.72916
Subject(s) - yolk , distillers grains , laying , feed conversion ratio , zoology , food science , biology , starch , egg albumen , chemistry , body weight , physics , astronomy , endocrinology
Two experiments using 551 and 537 LSK-61 WL laying hens in the tests were conducted to evaluate hen performance and egg quality when graded levels of barley or wheat distillers feeds (BDDGS, WDDGS) from conventional process and barley protein and fibre (BP, BF) from integrated starch-ethanol production were incorporated into the diets. In the first exp. hens were fed diets containing 200 g/kg diet of WDDGS or 100 or 200 g BDDGS either with or without cellulase addition, respectively. In the second trial hens were fed diets with 50 or 100g BP as protein supplement or 100 or 200g/kg diet BF with or without multienzyme (Avizyme) addition. Each diet with similar contents of ME, CP, lysine and S-amino acids was fed to hens from 34 to 58 wk of age following 4-wk pretreatment and 2-wk transition periods. There were only small dietary effects and no significant differences in performance due to treatment in either trial. The production level was rather high; on average the laying rate was 82.3 and 84.5 %, feed intake 119 g and 118 g/d and FCR 2.42 and 2.37 kg feed/kg eggs in exp. 1 and 2, respectively, indicating no adverse effects of the supplements used. A linear decrease (P < 0.01) in egg weight and yolk colour intensity (P