scholarly journals Effect of Dietary Phosphorus Level and Source on Productive Performance and Egg Quality of Two Commercial Strains of Laying Hens

1984 ◽  
Vol 63 (10) ◽  
pp. 2007-2019 ◽  
Author(s):  
N.W. SAID ◽  
T.W. SULLIVAN ◽  
M.L. SUNDE ◽  
H.R. BIRD
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Productive Performance ◽  
Phosphorus Level ◽  
Dietary Phosphorus

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

Productive Performance and Egg Quality of Laying Hens Raised in Conventional and Furnished Cages

2013 ◽  
Vol 1 (2) ◽  
pp. 108-112
Author(s):  
F. Iannaccone ◽  
F. Bovera ◽  
F. Rossi ◽  
C. Di Meo ◽  
G. Piccolo ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Productive Performance

scholarly journals Performance and egg quality of commercial laying hens fed with various levels of protected sodium butyrate

2021 ◽  
Vol 50 (5) ◽  
Author(s):  
M.F. Pires ◽  
N.S.M. Leandro ◽  
D.V. Jacob ◽  
F.B. Carvalho ◽  
H.F. Oliveira ◽  
...  
Keyword(s):  
Sodium Butyrate ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Block Design ◽  
Productive Performance ◽  
Quadratic Effect ◽  
Randomized Block Design ◽  
Commercial Poultry

Two experiments were conducted to evaluate the effect of including protected sodium butyrate (PSB) in the diets of laying hens of advanced age on productive performance and egg quality. In experiment 1, a total of 320 Dekalb White 61-week-old laying hens were distributed in a randomized block design to four treatments (0, 105, 210, and 300 g/ton of PSB) with eight replicates of 10 birds. The experiment was conducted over 112 days, divided into four periods of 28 days each. Productive performance and egg quality were evaluated. In experiment 2, a total of 58 000 Dekalb White 70-week-old laying hens were assigned to diets containing either 0 or 105 g/ton of PSB with two replicates of 14 500 birds. The experiment was conducted on a commercial poultry farm. Egg production and the percentages of broken eggs and dirty eggs were evaluated. The PSB levels did not influence the productive performance of laying hens. A quadratic effect was observed for eggshell thickness, percentage of eggshell and eggshell strength, reaching maxima at 193, 136 and 198 g/ton of PSB, respectively. A quadratic effect on yolk index reached a minimum at 181 g/ton of PSB. The percentages of dirty eggs and broken eggs were lower in laying hens fed 105 g/ton of PSB. In conclusion, the addition of PSB to the diets of old laying hens improved the eggshell quality and decreased the percentage of broken and dirty eggs Keywords: egg quality, laying hens, organic acids, performance, protected sodium butyrate

scholarly journals Effects of the Levels of Methionine, Linoleic Acid, and Added Fat in the Diet on Productive Performance and Egg Quality of Brown Laying Hens in the Late Phase of Production

2008 ◽  
Vol 87 (8) ◽  
pp. 1595-1602 ◽  
Author(s):  
H.M. Safaa ◽  
M.P. Serrano ◽  
D.G. Valencia ◽  
X. Arbe ◽  
E. Jiménez-Moreno ◽  
...  
Keyword(s):  
Linoleic Acid ◽  
Laying Hens ◽  
Egg Quality ◽  
Late Phase ◽  
Productive Performance

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 The effect of linear lighting systems on the productive performance and egg quality of laying hens

2020 ◽  
Vol 99 (3) ◽  
pp. 1369-1378
Author(s):  
Juliana de S.G. Barros ◽  
Tárcio A. dos S. Barros ◽  
Karina Sartor ◽  
Janaína A. Raimundo ◽  
Luiz A. Rossi
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Productive Performance ◽  
Lighting Systems

scholarly journals Performance and egg quality of laying hens fed pequi pulp flour

2021 ◽  
Vol 17 (5) ◽  
pp. 16-22
Author(s):  
Marllon José Karpegianne de Oliveira ◽  
Adriano Geraldo ◽  
Sara Santana Ramos Lemke ◽  
Diogo Alvarenga Miranda ◽  
Jean Kaique Valentim ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Laying Hens ◽  
Egg Quality ◽  
Additional Research ◽  
Productive Performance ◽  
Quadratic Regression ◽  
Different Levels

The objective of this study was to evaluatethe effects of including pequi pulp flour (PPF) in laying hendiets onperformance and egg quality.A total of 240 Hisex Brown strain were randomly assigned into 5 groups and were fed diets containing PPF at the level of 0%, 0.125%, 0.250%, 0.375%, and 0.5%. The experiment lasted63 days (3 periods of 21 days).The variables of performance andeggquality were submitted to linear and quadratic regression analysis at the level of 5% probability.Theoutcomes suggest that neither performance nor egg quality wasaffected (p > 0.05) by different levels of PPF.Dietary inclusion ofPPFtested in the present study wasnot sufficient to demonstrate improvement in the productive performance of birdsas well as in egg quality.Because of the lack of responses, additional research is needed to evaluate higher levels of PPF in the diets for laying hens.

Sign in / Sign up

Export Citation Format

Share Document