TY  - JOUR
T1  - Interactive Effect of Sodium Bentonite with Pigments on Performance and Egg Quality of Laying Hens
AU - Hashemipour, H. AU - Kermanshahi, H. AU - Pilevar, M. 
JO  - Journal of Animal and Veterinary Advances
VL  - 9
IS  - 16
SP  - 2179
EP  - 2184
PY  - 2010
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2010.2179.2184
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2010.2179.2184
KW  - Sodium bentonite
KW  -pigment
KW  -yolk color
KW  -laying hens
KW  -weight
KW  -Iran
AB  - In this experiment sodium bentonite was evaluated for its effect on egg yolk pigmentation and performance when synthetic pigment was added to the diet of laying hens. About 256 Hy-Line W-36 laying hens 35 weeks old were allocated to 8 experimental diets with 4 replicates each. Four levels of sodium bentonite (0.0, 1.0, 2.0 and 3.0%) and 2 levels of synthetic pigment (0.0 and 0.04%) were used for the 12 week experiment with a 4x2 factorial arrangement and a completely randomized design. Pigment was supplied by 20 g of lucantin and 20 g of xanthin that were diluted with 9960 g wheat bran. About 1 week before the experiment, the birds fed dietary treatments for adaptation. The measured records were feed intake, feed conversion ratio, egg production, egg weight, specific gravity, shell percent, shell thickness and yolk color index. The addition of sodium bentonite decreased (p<0.05) the specific gravity and yolk color index compared to the control diet. The addition of pigment significantly increased specific gravity and as expected, increased the yolk color index compared to the control diet.
ER  -