scholarly journals EFFECT OF DIETARY CALCIUM LEVEL ON THE PRODUCTIVE PERFORMANCE OF NAKED NECK (SHARKASI) LAYING HENS

2006 ◽  
Vol 43 (1) ◽  
pp. 237-249
Keyword(s):  
Calcium Level ◽  
Laying Hens ◽  
Dietary Calcium ◽  
Productive Performance ◽  
Naked Neck

scholarly journals Influence of Different Phosphorus Phase-Feeding Programs and Dietary Calcium Level on Performance and Body Phosphorus of Laying Hens

1987 ◽  
Vol 66 (9) ◽  
pp. 1524-1530 ◽  
Author(s):  
JERRY L. SELL ◽  
SHEILA E. SCHEIDELER ◽  
BARBARA E. RAHN
Keyword(s):  
Calcium Level ◽  
Laying Hens ◽  
Dietary Calcium ◽  
Feeding Programs

The effects of dietary calcium iodate on productive performance, egg quality and iodine accumulation in eggs of laying hens

2018 ◽  
Vol 102 (3) ◽  
pp. 746-754 ◽  
Author(s):  
R. Bakhshalinejad ◽  
A. Hassanabadi ◽  
H. Nassiri-Moghaddam ◽  
H. Zarghi
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Dietary Calcium ◽  
Productive Performance

ПРЕРЫВИСТОЕ ОСВЕЩЕНИЕ ПОВЫШАЕТ ЭФФЕКТИВНОСТЬ ИСКУССТВЕННОГО ОСЕМЕНЕНИЯ КУР В КЛЕТКАХ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Egg Production ◽  
Laying Hens ◽  
Electric Energy ◽  
Productive Performance ◽  
Feed Conversion ◽  
Scientific Center ◽  
Academy Of Sciences ◽  
Egg Fertility

Intermittent Lighting Improves the Efficiency of Artificial Insemination in Cage Housed Laying Hens Kavtarashvili A.Sh., Kolokolnikova T.N. Federal Scientific Center “All-Russian Research and Technological Poultry Institute” of Russian Academy of Sciences Omsk Agrarian Scientific Center Summary: The effects of different lighting regimes on the oviposition schedule, productive performance, and reproductive efficiency in cage housed laying hens of layer parental flock (Hisex White-R) were studied; the reasonable regime of artificial insemination (AI) under intermittent lighting is proposed. It was found that intermittent lighting regime 1L:4D:4L:1D:4L:10D compared to the constant lighting significantly alters oviposition schedule: under this regime 82.3% of all daily eggs were laid until 9 am (vs. 66.6% in control). This regime and AI at 10 am improved the productive and reproductive performance compared to control (constant lighting 16L:8D and AI at 12 am): mortality by 1.9%, egg production per initial hen by 3.8%, egg weight by 1.1%, percentage of eggs suitable for incubation by 1.9%, egg fertility by 0.9%, hatchability by 2.3%, hatch of chicks by 2.9%, feed conversion ratio (kg of feed per 10 eggs) by 5.3%, the expenses of electric energy for lighting (per 1000 eggs suitable for incubation) by 54.5%. Key words: INTERMITTENT LIGHTING, CAGE HOUSED LAYERS, ARTIFICIAL INSEMINATION (AI), OVIPOSITION SCHEDULE, AI TIMING, PRODUCTIVE PERFORMANCE, REPRODUCTIVE PERFORMANCE

Response of Early-Weaned Pigs to Variations in Dietary Calcium Level with and without Lactose

1963 ◽  
Vol 22 (2) ◽  
pp. 501-505 ◽  
Author(s):  
L. A. Menahan ◽  
P. A. Knapp ◽  
W. G. Pond ◽  
J. R. Jones
Keyword(s):  
Calcium Level ◽  
Dietary Calcium ◽  
Weaned Pigs
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