EurekaMag
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Tabanidae
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

A study of the optimum amount of vitamin A added to diets for layer chickens


A study of the optimum amount of vitamin A added to diets for layer chickens



Jiangsu Agricultural Sciences 2: 61



In a trial with laying chickens, diets were supplemented with retinol 8000, 12 000 or 16 000 IU/kg. Before feeding retinol, protein production rates were 70.28-71.93% and during the supplementation period they were 86.92% with 8000 IU, 92.93% with 12 000 IU and 91.22% with 16 000 IU. Food intake was increased by the treatments and the food:protein ratio was 2.75:1 for 8000 IU, 2.64:1 for 12 000 IU and 2.66:1 for 16 000 IU. Death rates decreased as the level of retinol increased.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 003027511

Download citation: RISBibTeXText

Related references

Nutrient digestibility and intestinal viscosities in broiler chickens fed on wheat diets, as compared to maize diets with added guar gum. British Poultry Science 42(1): 102-110, 2001

The optimum amount of vitamin D for osteoporosis: in case of activated vitamin D treatment. Clinical Calcium 14(1): 56-59, 2004

Identification of amino acids by thin-layer chromatography in plasma, liver and muscles of the leg (peroneus longus, gastrocnemius and soleus) of chickens fed on diets deficient in methionine, choline and vitamin C. Clinica Veterinaria 110(4): 225-233, 1987

Optimum amount of selenium in premixtures for meat chickens kept in batteries. Buletinul Institutului Agronomic Cluj Napoca, Zootehnie si Medicina Veterinara 35: 55-59, 1981

Influence of residual lipids on the nutritive value of fish meal. 3. Antioxidant stabilized and solvent extracted fish meal in diets for broiler chickens with different levels of added vitamin E and 1, 2-dihydro-6-ethoxy, 2, 2, 4-trimethylquinoline. Acta Agriculturae Scandinavica 21(2): 125-143, 1971

Rye as a component of poultry diets. 3. Rye in layer diets for chickens and pullets. Archives of Animal Nutrition 44(2): 139-146, 1993

Optimum Designs for Estimation of Optimum Amount and Proportions in a Mixture-Amount Model. Communications in Statistics. Theory and Methods 41(10-12): 1989-1999, 2012

Carotene Utilization and Cholesterol Metabolism as Influenced by Added Choline and Vitamin B12 to Diets Containing Yeast or a Synthetic Vitamin Mixture. The Journal of Nutrition 64(4): 571-586, 1958

Carotene utilization and cholesterol metabolism as influenced by added choline and vitamin B12 to diets containing yeast or a synthetic vitamin mixture. Journal of Nutrition 64(4): 571-586, 1958

Protein requirements and value of added fat and antibiotics in diets of broiler chickens. Poultry Science 50(5): 1590, 1971

Optimum amount of vitamin E for young and breeding sheep. Lucrarile Stiintifice ale Institutului de Biologie si Nutritie Animala 12: 147-155, 1983

Vitamin A and carotene in the liver of chickens in vitamin A deficiency induced experimentally by different diets. Folia Veterinaria 17(1/2): 21-26, 1973

Biological effect on chickens of lactic and acetic acids added to the diets. Mikrobiologiya i biotekhnologiya proizvodstva kormov: 64-71, 1990

The effects of added fat in layer diets. Progress in poultry "through research": 80 (20), 1980

The effect of vitamin C on performance of coccidia-infected chickens fed complete and vitamin-deficient semi-purified diets. Poultry Science 50(1): 26-34, 1971