Vitamin supplementation of cereal diets for poultry

Whitehead, C. C.

doi:10.1016/0377-8401(93)90073-s

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…12,16,28 Broiler vitamin requirement decreases with ageing; for instance, Ruiz and Harms 29 reported that broiler niacin requirement at 0-3 weeks of age is 35 g kg −1 diet while this vitamin requirement at 3-7 weeks of age is only 22 mg kg −1 diet. Whitehead 30 reported that the available amounts of thiamine, pyridoxine, biotin and choline in practical diets are enough to overcome chicken requirements. Dudley-Cash 31 reported that the vitamin A, vitamin E, biotin, folic acid and pyridoxine content of corn-soybean meal diets provide broiler requirements to these vitamins and there is no need to add extra to premixes.…”

Section: Resultsmentioning

confidence: 99%

Effect of dietary nutrient density and vitamin premix withdrawal on performance and meat quality of broiler chickens

Mirshekar

Dastar

Shábanpour

et al. 2013

J. Sci. Food Agric.

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Section: Resultsmentioning

confidence: 99%

Effect of dietary nutrient density and vitamin premix withdrawal on performance and meat quality of broiler chickens

Mirshekar

Dastar

Shábanpour

et al. 2013

J. Sci. Food Agric.

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Composition of vitamin supplements in Spanish poultry diets

Villamide

Fraga²

1999

British Poultry Science

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1. The composition of 106 vitamin supplements used in about 85% of the Spanish poultry production diets were studied. Vitamin supplements were grouped by production classes and, for broilers and pullets, also by feeding periods. 2. Four vitamins (niacin, alpha-tocopherol, pantothenic acid, and riboflavin) comprised over 87% of the vitamin supplements by weight (choline excluded), whereas alpha-tocopherol and retinol represented from 51% to 60% of the total vitamin cost. 3. The highest and lowest vitamin supplementation rates were for broilers in the starter and withdrawal periods (106 and 44 mg/kg, respectively) and the mean values for breeders, pullets and layers were 104, 58, and 48 mg/kg, respectively. 4. Supplements with higher vitamin contents showed less variability in their composition. Retinol, cholecalciferol, riboflavin and pantothenic acid showed the lowest variability within supplements (6% to 36% CV), whereas alpha-tocopherol, menadione, thiamin and biotin showed the highest (40% to 224% CV). 5. Vitamin supplementation rates were compared with requirements, taking into account the dietary contribution. In general, vitamin fortification exceeded the NRC recommendations, using a high safety margin for some vitamins such as vitamin A (from 2.6 to 7.8) and for some poultry classes such as breeders (3.2).

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Effect of Composite Vitamin Supplementation on Broilers

Coelho

McNaughton²

1995

Journal of Applied Poultry Research

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Vitamin supplementation of cereal diets for poultry

Cited by 3 publications

References 18 publications

Effect of dietary nutrient density and vitamin premix withdrawal on performance and meat quality of broiler chickens

Effect of dietary nutrient density and vitamin premix withdrawal on performance and meat quality of broiler chickens

Composition of vitamin supplements in Spanish poultry diets

Effect of Composite Vitamin Supplementation on Broilers

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