Folic acid requirements of broilers
| Autor: | M. Frigg, C C Whitehead, J S Rennie, Heather McCormack |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Male
biology Nutritional Requirements food and beverages Phosphoribosyl Pyrophosphate General Medicine Tetrahydrofolate Dehydrogenase Food conversion chemistry.chemical_compound Folic Acid Starter chemistry Biochemistry Folic acid Dietary folate Dihydrofolate reductase biology.protein Animals Choline Female Animal Science and Zoology Food science Chickens Biomarkers Food Science |
| Zdroj: | British Poultry Science. 36:113-121 |
| ISSN: | 1466-1799 0007-1668 |
| DOI: | 10.1080/00071669508417757 |
| Popis: | 1. Dietary folic acid requirements of broilers were studied in three experiments using wheat‐ and maize‐based practical diets. Requirements were assessed on the basis of performance and metabolic criteria. 2. Growth and food conversion efficiencies were optimised with supplements of 1.5 mg folic acid/kg added to basal mash starter diets. The dietary folic acid requirement of broilers was estimated to be in the range of 1.7 to 2.0 mg/kg. 3. Red blood cell phosphoribosylpyrophosphate concentrations and dihydrofolate reductase activites did not show consistent changes over the range of dietary folate concentrations studied but plasma folate concentrations responded markedly to dietary folate supplementation. 4. Adding choline to diets in amounts greater than the normal requirement did not spare the requirement for folic acid. 5. It is suggested that minimum folic acid supplements for pelleted practical diets should be in the order of 2.5 to 3 mg/kg. |
| Databáze: | OpenAIRE |
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