scholarly journals Effect of crude protein and fat content of diet on productive performance and egg quality traits of brown egg-laying hens with different initial body weight

2012 ◽  
Vol 91 (6) ◽  
pp. 1400-1405 ◽  
Author(s):  
A. Pérez-Bonilla ◽  
C. Jabbour ◽  
M. Frikha ◽  
S. Mirzaie ◽  
J. Garcia ◽  
...  
Keyword(s):  
Body Weight ◽  
Crude Protein ◽  
Laying Hens ◽  
Egg Quality ◽  
Fat Content ◽  
Egg Laying ◽  
Quality Traits ◽  
Productive Performance ◽  
Initial Body Weight

scholarly journals Effects of energy concentration of the diet on productive performance and egg quality of brown egg-laying hens differing in initial body weight

2012 ◽  
Vol 91 (12) ◽  
pp. 3156-3166 ◽  
Author(s):  
A. Pérez-Bonilla ◽  
S. Novoa ◽  
J. García ◽  
M. Mohiti-Asli ◽  
M. Frikha ◽  
...  
Keyword(s):  
Body Weight ◽  
Laying Hens ◽  
Egg Quality ◽  
Egg Laying ◽  
Energy Concentration ◽  
Productive Performance ◽  
Initial Body Weight

scholarly journals Influence of the energy and digestible lysine contents of the diet on performance and egg quality traits of brown-egg laying hens from 19 to 59 weeks of age

2021 ◽  
pp. 101211
Author(s):  
R. Scappaticcio ◽  
J. Garcia ◽  
G. Fondevila ◽  
A.F. de Juan ◽  
L. Cámara ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Egg Laying ◽  
Quality Traits

scholarly journals Long-term effects of choline on productive performance and egg quality of brown-egg laying hens

2013 ◽  
Vol 92 (7) ◽  
pp. 1824-1829 ◽  
Author(s):  
Q.H. Zhai ◽  
X.F. Dong ◽  
J.M. Tong ◽  
Y.M. Guo ◽  
Y.E. Bao
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Egg Laying ◽  
Productive Performance ◽  
Long Term Effects

Effects of dietary supplementation of Kappaphycus alvarezii on productive performance and egg quality traits of laying hens

2018 ◽  
Vol 31 (3) ◽  
pp. 2065-2072 ◽  
Author(s):  
A. B. Mandal ◽  
A. Biswas ◽  
N. A. Mir ◽  
Praveen K. Tyagi ◽  
D. Kapil ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Kappaphycus Alvarezii ◽  
Dietary Supplementation ◽  
Quality Traits ◽  
Productive Performance

scholarly journals Combinations of cholecalciferol and 25-hydroxycholecalciferol as vitamin D sources in white laying hen feed diets

2014 ◽  
Vol 38 (6) ◽  
pp. 573-580
Author(s):  
Diego Fernando Remolina Rivera ◽  
Antonio Gilberto Bertechini ◽  
Tiago Ferreira Birro Oliveira ◽  
Solange de Faria Castro ◽  
Henrique Braga Oliveira ◽  
...  
Keyword(s):  
Vitamin D ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Egg Laying ◽  
Available P ◽  
Egg Mass ◽  
Productive Performance ◽  
Positive Effects ◽  
25 Hydroxycholecalciferol

The effect of cholecalciferol (D3) and 25-hydroxycholecalciferol (25-OHD3) as isolated or associated sources of vitamin D (100%-0%, 75%-25%, 50%-50%, 25%-75%, 0%-100%) on the productive performance, egg quality, and bone characteristics was evaluated in white egg-laying hens fed two levels of calcium (Ca) and phosphorus (P) in the basal diet (BD) (BD1 = 0.38% Ca - 0.36% available P and BD2 = 3.2% Ca - 0.30% available P). Nine hundred and sixty Dekalb White hens (24 weeks old) were distributed into 80 cages, under a completely randomized factorial design for 16 weeks. The use of associated sources of vitamin D reduced the feed intake and feed conversion ratio, as well as BD1, which also increased the egg production and egg mass. The association of vitamin D sources with up to 50% 25-OHD3 increased the eggshell percentage. There was interaction (p<0.05) between the sources of vitamin D and the concentrations of Ca and available P, sources with at least 50% 25-OHD3 increased ash percentage and bone radiographic densitometry (BRD) with BD1; in BD2 the use of 25-OHD3 as isolated vitamin D source increased BRD. The association of D3 and 25-OHD3 improved the productive performance, increased the percentage of eggshell and had different positive effects on the bone characteristics that depend on the concentrations of Ca and available P in the balanced feed of white egg-laying hens.

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