0.906
IF5
0.875
IF
Q3
JCR
1.0
CiteScore
0.374
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

Efficacy of different levels of a cholecalciferol 25-OH-derivative in diets with two limestone forms in laying hen nutrition

J. Koreleski 1  ,  
 
1
National Research Institute of Animal Production, Department of Animal Nutrition, 32-083 Balice, Poland
J. Anim. Feed Sci. 2005;14(2):305–315
Publish date: 2005-03-18
KEYWORDS
ABSTRACT
An experiment was conducted on 180 Hy-Line Brown hens (from 26 to 70 weeks of age) in a 5 × 2 factorial arrangement with five levels of vitamin D3 and 25-OH-D3 derivative rations and two forms of limestone in the diet. Diets were supplemented with 1500 IU of vitamin D3; vitamin 25-OH-D3 derivative was substituted for cholecalciferol in amounts equivalent to 0, 25, 50, 75 and 100%. Limestone (8.5% in the diet) was supplied in fine pulverized (LF, 0.1-0.4 mm) or mixed: fine + grit (LG, 2-4 mm) form as a 1:1 mixture of LF:LG. Eggshell quality, tibia bone breaking strength and performance indicators were studied. Supplementation of the diet with LF + LG limestone decreased feed intake and, at 70 weeks of age, increased eggshell breaking strength and tibia bone strength in comparison with group LF. At 66 weeks of age, hens fed 25% of vitamin D3 as 25-OH-D3 laid eggs with thicker and denser shells. At 66 and 70 weeks of age, partial or complete substitution of cholecalciferol with 25-OH-D3 increased eggshell breaking strength. The effect of 25-OH-D3 on bone breaking strength was not confirmed statistically. Under the conditions of this experiment, simultaneous use of LF + LG and 25-OH-D3 in the diet for older layers appears to be the most efficient combination for achieving high resistance of eggshells and tibia bones.
CORRESPONDING AUTHOR
J. Koreleski   
National Research Institute of Animal Production, Department of Animal Nutrition, 32-083 Balice, Poland
 
CITATIONS (6):
1. Productive performance of broiler breeder hens fed 25-hydroxycholecalciferol
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Revista Brasileira de Zootecnia
2. Effects of commercial in ovo injection of 25-hydroxycholecalciferol on bone development and mineralization in male and female broilers12
A. Bello, P. Y. Hester, P. D. Gerard, W. Zhai, E. D. Peebles
Poultry Science
3. Dietary factors improving eggshell quality: an updated review with special emphasis on microelements and feed additives
S. ŚWIĄTKIEWICZ, A. ARCZEWSKA-WŁOSEK, J. KRAWCZYK, M. PUCHAŁA, D. JÓZEFIAK
World's Poultry Science Journal
4. Improving the Safety and Quality of Eggs and Egg Products
I. Bouvarel, Y. Nys, P. Lescoat
5. Efficacy of dietary vitamin D and its metabolites in poultry - review and implications of the recent studies
S. ŚWIĄTKIEWICZ, A. ARCZEWSKA-WŁOSEK, D. BEDERSKA-LOJEWSKA, D. JÓZEFIAK
World's Poultry Science Journal
6. Infectious and non-infectious factors associated with leg disorders in poultry – a review
Bartosz Kierończyk, Mateusz Rawski, Damian Józefiak, Sylwester Świątkiewicz
Annals of Animal Science
ISSN:1230-1388