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The effects of citric acid supplemention to laying hen diets contain different levels of Ca and P on the performances, egg quality, mineral utilization and microbial population of small intestinea  [2006]

Kahraman, Z., Poultry Research Institute, Ankara (Turkey); Çiftçi, İ., Ankara Univ., Faculty of Agriculture, Ankara (Turkey). Div. of Animal Science; General Directorate of Agricultural Research, Ankara (Turkey) [Corporate Author]

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This study was carried out to determine the effects of citric acid supplementation in laying hen rations had different levels of Ca (% 3.0-3.5) and P (% 0.15- 0.35) on some egg quality characteristics, performance, mineral material utilization and microbial populations in the caeca of the hens. The diets used in the experiment were prepared for hens as isonitrojenic and isocaloric respectively % 17 crude protein and 2750 k cal ME/kg in the first period and % 16.5 crude protein and 2700 k cal ME/kg in the first period At the end of the experiment, egg weight, egg mass, feed conversion ratio (FCR), live weight change and livability were not significantly affected by using levels of citric acid supplementation in laying hen rations had different levels of Ca and P. Egg production was affected negatively by the treatments (P0.05), particularly, when the ratio of Ca/P was unbalanced. Egg mass increased significantly affected by the treatment which was sufficient Ca in the second period. Feed intake increased significantly affected by the treatment sufficient Ca in the first period and sufficient P in the second period (P0.05). Egg shell breaking strength, shell weight and shell thickness decreased by the treatments sufficient levels of Ca and P in the first period, but in the second period shell breaking strength increased, when the experiment had insufficient Ca with citric acid supplementation (P0.05). Shell ratio was found significantly by the treatment suff
icient levels of Ca and P but citric acid supplementation was a negative effect on it. When the levels of Ca and P were sufficient, egg shell ashes increased but, including Ca in the shell ashes decreased by the treatment sufficient level of Ca. Albumen height and haugh unite were effected negatively by the treatment insufficient Ca with citric acid supplementation in the first period, they were effected positively by the treatment insufficient Ca and P with citric acid supplementation in the second period (P0.05). Egg yolk color was found significantly high by the treatment insufficient Ca and P in the first period, compared to other treatment (P0.05). In the second period, it increased significantly by the treatment insufficient Ca and P with citric acid supplementation also (P0.05).At the end of the experiment, gizzard and jejunum pH increased significantly by the treatment sufficient Ca and P with citric acid supplementation (P0.05). Tibia ashes increased significantly by the treatment sufficient P. The Ca level of tibia ashes was decreased by the citric acid supplementation statistically (P0.05).

Bibliographic information

Language:
tur
Type:
Directory
In AGRIS since:
2010
Extent:
57 p.
Publisher:
Poultry Research Institute
All titles:
"The effects of citric acid supplemention to laying hen diets contain different levels of Ca and P on the performances, egg quality, mineral utilization and microbial population of small intestinea"@eng
"Farklı düzeylerde Ca ve P içeren yumurta tavuğu yemlerine sitrik asit ilavesinin performans, yumurta kalitesi, mineral madde yararlanımı ve bağırsak mikroflorası üzerine etkileri"@tur
Other:
"Summaries (En, Tr)"
"13 tables"
"41 ref."
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Bibliographic information

Language:
tur
Type:
Directory
In AGRIS since:
2010
Extent:
57 p.
Publisher:
Poultry Research Institute
All titles:
"The effects of citric acid supplemention to laying hen diets contain different levels of Ca and P on the performances, egg quality, mineral utilization and microbial population of small intestinea"@eng
"Farklı düzeylerde Ca ve P içeren yumurta tavuğu yemlerine sitrik asit ilavesinin performans, yumurta kalitesi, mineral madde yararlanımı ve bağırsak mikroflorası üzerine etkileri"@tur
Other:
"Summaries (En, Tr)"
"13 tables"
"41 ref."