THE PERFORMANCE OF LAYING HENS FED DIFFERENT CALCIUM SOURCE

Nutritional and Metabolic Parameters in Laying Hens Fed with Different Levels of Calcium, Phosphorus and Phytases

The experiment was made on a Lohmann Brown classic hybrid from 32 to 42 weeks of age. There were used feeds containing various levels of Ca, P or phytase: NC1 and NC2 were commercial recipes, NC3 was supplemented with Phyzyme (500 TFU/kg), NC4 was supplemented with monosodium phosphate and NC5 with dicalcium phosphate according to nutrient requirements (NRC 1998). There was tested the possibili...

Efficacy of Feeding Various Calcium Source and Concentration on Egg Quality, Some Blood Variables, and Performance of Aged Laying Hens

The primary aim of this study was to assay the influence of dietary Ca sources and levels on performance, egg quality indices, and selected blood variables of laying hens. A total of 192 Bovanz commercial layers were distributed to 6 dietary treatment groups with 4 replicates and 8 birds in each replicate. The experimental diets were iso-caloric and iso-nitrogenous, but they were different in t...

Performance of laying hens fed on practical diets containing different levels of supplemental biotin during the rearing and laying stages.

1. The effect of biotin supplementation of low-biotin practical diets during rearing and laying stages on performance was studied in White Leghorn-type laying hens. 2. Biotin supplementation during rearing did not have any apparent effect on the condition of the bird at point-of-lay or on subsequent laying performance. 3. Biotin supplementation during lay did not have any beneficial effect upon...

Productive Performance of Laying Hens Fed Different Levels of Distillers Dried Grains with Solubles with or without Certain Feed Additives

The objective of this work was to evaluate the inclusion of distillers dried grains with solubles (DDGS) as substitution for soybean meal in Hisex Brown laying hen diets with or without enzyme or vitamin E supplementation on productive performance. A total number of 180 Hisex Brown laying hens at 26 weeks of age were randomly divided into 15 treatment groups in a 5 × 3 factorial design experime...

Reesponse of laying hens fed on different dietary sulphur amino acid supplemented with maize oil