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Hakan,KB; Gultekin,Y; Ozge,S. |
In this study, the effects of boric acid and humate supplementation into hen diets on egg production and quality parameters and blood cholesterol levels were examined. For this aim, totally 160, 40 weeks of age, Hyline-White 98 layers were randomly divided into control and 3 treatment groups each containing 40 birds and 10 replicates (each with 4 birds). There was no boric acid or humate supplementation to control group diets (basal diet) where as treatment groups were supplemented with (basal diet plus) 90 ppm boric acid or 1 g/kg humate, or combination of these two feed additives, respectively. The experimental period lasted in 14 weeks. End of the trial there were no significant effects of dietary boric acid and humate inclusion on feed intake, egg... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Boron; Egg production and quality; Humic substance; Performance. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000400008 |
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Şahan,Z; Kutay,H; Çeli̇k,L. |
ABSTRACT In the present study, seventy-two 30-week-old laying hens (Brown Hisex) were separated into two groups (control and treatment) and fed with a standard layer diet. In the treatment group the amount of effective microorganism (EM) added to the drinking water is equal to1000 ppm EM dose. Throughout the 8-week study period, 16 h thermoneutral (20-22 ºC) and 8 h hot (35-37 ºC) environmental temperature regime was applied daily. The results indicated that EM supplementation affected performance and some egg quality characteristics of layers exposed high environmental temperature. Feed intake and conversion ratio, yolk index, albumen index, yolk colour b, Haugh unit were decreased by supplemental EM. Serum glucose, cholesterol, triglycerides, calcium,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Laying hen; Effective microorganisms; High temperature; Performance; Egg production and quality. |
Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2021000100306 |
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