scholarly journals The Effects of Short Term Feeding of Aflatoxin on Egg Production and Some Plasma Constituents of the Laying Hen ,

1973 ◽  
Vol 52 (6) ◽  
pp. 2206-2211 ◽  
Author(s):  
J.D. Garlich ◽  
Hsi-Tang Tung ◽  
P.B. Hamilton
Keyword(s):  
Egg Production ◽  
Laying Hen ◽  
Short Term

Duckweed as a Feed Ingredient in Laying Hen Diets and its Effect on Egg Production and Composition

2010 ◽  
Vol 10 (1) ◽  
pp. 4-7 ◽  
Author(s):  
K.E. Anderson ◽  
Z. Lowman ◽  
Anne-Marie Stomp ◽  
Jay Chang
Keyword(s):  
Egg Production ◽  
Laying Hen ◽  
Feed Ingredient

scholarly journals Feather Pecking and Cannibalism in Non-Beak-Trimmed Laying Hen Flocks—Farmers’ Perspectives

Animals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 43 ◽  
Author(s):  
Eija Kaukonen ◽  
Anna Valros
Keyword(s):  
Risk Factors ◽  
Drinking Water ◽  
Egg Production ◽  
Laying Hen ◽  
Economic Losses ◽  
Online Questionnaire ◽  
Negative Attitudes ◽  
Feather Pecking ◽  
Intervention Measures ◽  
Beak Trimming

Pecking-related problems are common in intensive egg production, compromising hen welfare, causing farmers economic losses and negatively affecting sustainability. These problems are often controlled by beak trimming, which in Finland is prohibited. An online questionnaire aimed to collect information from farmers about pecking-related problems in Finnish laying hen flocks, important risk factors and the best experiences to prevent the problems. Additionally, the farmers’ attitudes towards beak trimming were examined. We received 35 responses, which represents about 13% of all Finnish laying hen farms with ≥300 laying hens. The majority of respondents stated that a maximum of 5–7% incidence of feather pecking or 1–2% incidence of cannibalism would be tolerable. The majority of respondents (74%) expressed that they would definitely not use beak-trimmed hens. Only two respondents indicated that they would probably use beak-trimmed hens were the practice permitted. Among risk factors, light intensity earned the highest mean (6.3), on a scale from 1 (not important) to 7 (extremely important). Other important problems included those that occurred during rearing, feeding, flock management and problems with drinking water equipment (mean 5.9, each). The most important intervention measures included optimal lighting and feeding, flock management, and removing the pecker and victim. Concluding, Finnish farmers had strong negative attitudes towards beak trimming. The study underlines the importance of flock management, especially lighting and feeding, in preventing pecking problems and indicates that it is possible to incorporate a non-beak-trimming policy into sustainable egg production.

Long- and Short-Term Studies with Free Amino Acid Diets for the Laying Hen

1961 ◽  
Vol 75 (4) ◽  
pp. 402-408 ◽  
Author(s):  
J. S. Adkins ◽  
A. E. Harper ◽  
M. L. Sunde
Keyword(s):  
Amino Acid ◽  
Free Amino Acid ◽  
Free Amino ◽  
Laying Hen ◽  
Short Term

Control of Energy Balance during Egg Production in the Laying Hen

1987 ◽  
Vol 117 (3) ◽  
pp. 605-611 ◽  
Author(s):  
Colin G. Scanes ◽  
Robert Campbell ◽  
Paul Griminger
Keyword(s):  
Energy Balance ◽  
Egg Production ◽  
Laying Hen

scholarly journals Effect of yeast cell wall supplementation in laying hen feed on economic viability, egg production, and egg quality

2018 ◽  
Vol 27 (1) ◽  
pp. 116-123 ◽  
Author(s):  
N.T.G. Koiyama ◽  
N.B.P. Utimi ◽  
B.R.L. Santos ◽  
M.A. Bonato ◽  
R. Barbalho ◽  
...  
Keyword(s):  
Cell Wall ◽  
Yeast Cell ◽  
Egg Production ◽  
Egg Quality ◽  
Laying Hen ◽  
Yeast Cell Wall ◽  
Economic Viability
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