EFFECT OF HUMIC ACID AND BIO-MOS SUPPLEMENTATION ON EGG PRODUCTION AND QUALITY PARAMETERS IN LOCAL HENS
Journal of Animal and Poultry Production
This study was designed to investigate the inclusion effect of humic acid (HA) and mannanoligosaccharide (Bio-Mos) into laying hen diets on egg production and egg quality. Gimmizah layers (n=210) 30 wk of age were fed a control diet , 0.1 , 0.2 and 0.3% humic acid and 0.1 , 0.2 and 0.3 % Bio-Mos for 90 days . Feed consumption was measured weekly and feed conversion was calculated.. Mortality was recorded daily. The number of eggs and egg weight were recorded daily throughout the experimental
... the experimental period. Also a sample of 30 eggs from each group was collected randomly to determine egg quality every 30 days. The results were summarized as follow: egg weight and egg production for hens supplemented with humic acid and Bio-Mos were significantly increased compared with the control group. Dietary treatments had insignificant effect on feed intake. No significant effect of humic acid or Bio-Mos had insignificantly effect on egg shape index, albumin (%), Haugh unit and egg yolk index. Whereas, egg shell thickness was significantly (p<0.05) increased compared with the control group. In conclusion, supplementation of humic acid and Bio-Mos during laying period significantly increased egg production, egg weight and improved egg shell quality.