scholarly journals Effects of edible environmental enrichments during the rearing and laying periods in a littered aviary—Part 2: physical development of pullets and performance, egg quality, and carcass composition in laying hens

2020 ◽  
Vol 99 (12) ◽  
pp. 6685-6696 ◽  
Author(s):  
Ruben Schreiter ◽  
Klaus Damme ◽  
Michael Klunker ◽  
Camille Raoult ◽  
Eberhard von Borell ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Physical Development ◽  
Carcass Composition ◽  
And Performance

scholarly journals Effects of Feed Supplementations for Fermented Apple Pomace and Cinnamon on Egg Quality and Performance in Laying Hens

2010 ◽  
Vol 37 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Hwan-Ku Kang ◽  
Ok-Suk Seo ◽  
Hee-Chul Choi ◽  
Hyun-Seok Chae ◽  
Jae-Cheon Na ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Apple Pomace ◽  
And Performance

scholarly journals Effects of Caffeine on Egg Quality and Performance of Laying Hens

2020 ◽  
Vol 7 ◽  
Author(s):  
Mailson da Silva Teixeira ◽  
Marcela Viana Triginelli ◽  
Thaís de Ataíde Costa ◽  
Leonardo José Camargos Lara ◽  
Benito Soto-Blanco
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
And Performance

scholarly journals The effects of space allowance on egg yield, egg quality and plumage condition of laying hens in battery cages

2008 ◽  
Vol 53 (No. 8) ◽  
pp. 345-353 ◽  
Author(s):  
M. Sarica ◽  
S. Boga ◽  
U.S. Yamak
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Stocking Density ◽  
Experimental Period ◽  
Egg Mass ◽  
Quality Traits ◽  
Body Parts ◽  
Battery Cages ◽  
And Performance

This study was conducted to investigate the effects of cage stocking density on egg yield, some egg quality traits and plumage condition in laying hens. Eighteen weeks-old 264 ISA-Brown pullets were divided into four cage density groups. The densities were 2 000, 1 000, 667 and 500 cm<sup>2</sup> per hen (by allocating 1, 2, 3 and 4 hens per cage; floor area 40 × 50 cm) with 48, 30, 24 and 21 replicate cages, totally 123 three-tier battery cages. During the experimental period from 18 to 53 weeks of age, all birds were provided illumination for 16 hours a day. The hens were fed a diet containing 11.7 MJ ME/kg and 180 g CP during the period of 18 to 40 weeks of age and 11.3 MJ ME/kg and 170 g CP during the period of 41 to 54 weeks of age. Feed and water were available for <I>ad libitum</I>. Egg yield, mortality, live weights at 50% egg production age and at the end of experiment, pecking related mortalities, some egg quality traits and plumage condition were recorded weekly. Hen-housed egg production, egg mass, viability, and live weights were significantly decreased by higher densities. Most of the egg quality traits were not affected by cage densities. Pecking related mortalities increased in cage densities of 667 cm<sup>2</sup> and 500 cm<sup>2</sup> per hen compared to the other densities (<I>P</I> < 0.05) while plumage scores were higher in all body parts of hens kept in cages of 2 000 cm<sup>2</sup> and 1 000 cm<sup>2</sup> densities compared to the higher densities. The results showed that brown laying hens should be kept in cages having 1 000–2 000 cm<sup>2</sup> densities in order to improve their welfare and performance.

scholarly journals Effects of Dimethyl Anthranilate-Based Repellents on Behavior, Plumage Condition, Egg Quality, and Performance in Laying Hens

2020 ◽  
Vol 7 ◽  
Author(s):  
Dušan Terčič ◽  
Mojca Pančur ◽  
Dušanka Jordan ◽  
Manja Zupan Šemrov
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
And Performance

Providing laying hens in group-housed enriched cages with access to barley silage reduces aggressive and feather-pecking behaviour

2016 ◽  
Vol 96 (2) ◽  
pp. 161-171 ◽  
Author(s):  
S.G. Johannson ◽  
C. Raginski ◽  
K. Schwean-Lardner ◽  
H.L. Classen
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Free Access ◽  
Feather Pecking ◽  
Nest Boxes ◽  
And Performance ◽  
Barley Silage ◽  
Effect Of Feeding ◽  
Bird Weight

Two trials were conducted to study the effect of feeding barley silage on the behaviour and performance of beak-trimmed laying hens. In each trial, 20 hens and 2 roosters were housed in each of eight group-housed enriched cages, with four cages provided a laying hen diet and four cages additionally given free access to barley silage. Egg production and quality, and hen behaviour were assessed throughout the trials (Trial One 20–30 weeks; Trial Two 19–28 weeks). Data were analysed using Proc Mixed of SAS 9.4 and differences were significant when P ≤ 0.05. Silage-fed hens consumed 41 (13.9 g DM) and 50 (13.5 g DM) grams of silage per hen per day in Trials One and Two, respectively, while consuming less layer diet. Birds fed silage spent less time expressing aggressive and feather-pecking behaviours and in nest boxes, and more time feeding than control birds. Egg production, egg quality, and bird weight were not affected by treatment; yolk colour was darker for the silage treatment. Feathering quality was improved in silage-fed birds compared to control birds. It was concluded that providing hens with access to barley silage can improve welfare indicators without negatively affecting the egg production and egg quality.

FEEDING VALUE OF RAPESEED FOR LAYING HENS

1972 ◽  
Vol 52 (3) ◽  
pp. 563-566 ◽  
Author(s):  
A. J. LESLIE ◽  
J. D. SUMMERS
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Experimental Period ◽  
Quality Parameters ◽  
Feed Consumption ◽  
Feeding Value ◽  
And Performance ◽  
Feeding Diets ◽  
Haugh Unit

An experiment was conducted to determine the effects of feeding diets containing 0, 5, 10, and 15% ground raw rapeseed to three replicates of 14 laying hens each. Isocaloric isonitrogenous diets were fed for a 28-day experimental period and performance and egg quality parameters were measured. Egg production was depressed at the two higher levels of rapeseed inclusion but was not affected at the 5% level of inclusion. Haugh unit, albumen height, and shell deformation were not affected significantly (P > 0.05) but egg weight decreased progressively as rapeseed inclusion increased. Feed consumption was significantly depressed (P < 0.05) at the 15% level of rapeseed and slightly reduced at the other levels.

scholarly journals Feeding Corn Distillers Dried Grains With Solubles (Ddgs) And Its Effect On Egg Quality And Performance Of Laying Hens / Zastosowanie DDGS z kukurydzy w żywieniu kur niosek i jego wpływ na jakość jaj i wyniki produkcyjne

2013 ◽  
Vol 13 (1) ◽  
pp. 97-107 ◽  
Author(s):  
Jan Niemiec ◽  
Julia Riedel ◽  
Tadeusz Szulc ◽  
Małgorzata Stępińska
Keyword(s):  
Feed Intake ◽  
Laying Hens ◽  
Egg Quality ◽  
Feed Mixture ◽  
Egg Weight ◽  
Distillers Dried Grains ◽  
Laying Performance ◽  
And Performance ◽  
Corn Distillers ◽  
Corn Ddgs

Abstract The purpose of this experiment was to determine the effect of corn DDGS as a feed ingredient on egg quality and performance of laying hens. The experiment was conducted in three feeding groups of 100 hens each (10 replicates of 10 layers). ISA Brown laying hens were administered a feed mixture containing 15% (E1) or 20% (E2) corn DDGS for 18 weeks. The hens from the control group (C) received a standard diet based on soybean meal as the main protein source only. Laying performance, average egg weight, average daily feed intake and feed conversion ratio were recorded over the study period. Egg quality traits (egg weight, thick albumen quality, yolk colour, yolk content, shell content and shell thickness) were evaluated twice: at the start and at the end of the experiment. On both dates, all daily laid eggs from each group were analysed, i.e. 90, 93 and 92 eggs from groups C, E1 and E2, respectively at 31 weeks, and 92, 94 and 81 eggs, respectively at 48 weeks of age. Compared to the other groups, the hens from group E2 (20% DDGS) were characterized by a slight - though statistically significant (P≤0.01) - decrease in laying performance and by a higher FCR value. The content of DDGS in the feed mixture had no significant effect on mean egg weight nor on daily feed intake. At the end of the experiment, the eggs laid by the hens from group E2 were characterized by significantly poorer (P≤0.01) albumen and shell quality. Yolk colour in both experimental groups was significantly darker (P≤0.01) than in the C group. The 15% addition of corn distillers dried grains with solubles to feed mixtures for commercial flocks of laying hens is advisable. At corn DDGS addition exceeding 15%, a slight decrease in production results and deterioration in selected parameters of egg quality shall be expected.

scholarly journals Effects of Feeding Rhus verniciflua Extract on Egg Quality and Performance of Laying Hens

2008 ◽  
Vol 28 (5) ◽  
pp. 610-615 ◽  
Author(s):  
Hwan-Ku Kang ◽  
Geun-Ho Kang ◽  
Jae-Cheon Na ◽  
Dong-Jo Yu ◽  
Dong-Wook Kim ◽  
...  
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Rhus Verniciflua ◽  
And Performance

scholarly journals Effects of cottonseed meal supplemented with lysine and enzyme (Hydroenzyme XP) on egg quality and performance of laying hens

2012 ◽  
Vol 41 (10) ◽  
pp. 2225-2231 ◽  
Author(s):  
Ali Asghar Saki ◽  
Khashayar Pournia ◽  
Mohamad Mehdi Tabatabaie ◽  
Pouya Zamani ◽  
Mojtaba Haghighat ◽  
...  
Keyword(s):  
Cottonseed Meal ◽  
Laying Hens ◽  
Egg Quality ◽  
And Performance

scholarly journals Effects of Energy and Protein Levels on Egg Quality and Performance of Laying Hens at Early Second Production Cycle

2006 ◽  
Vol 15 (1) ◽  
pp. 110-115 ◽  
Author(s):  
O.M. Junqueira ◽  
A.C. de Laurentiz ◽  
R. da Silva Filardi ◽  
E.A. Rodrigues ◽  
E M. Casartelli Casartelli
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Production Cycle ◽  
Protein Levels ◽  
And Performance
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