Effects of dietary supplementation with vitamin E, selenium yeast or both on egg incubation response, embryonic development, keet quality, and posthatch growth of helmeted guinea fowl breeders
| Autor: | O A Lala, E O Oke, A G Taiwo, Z O Ogunsola, Abimbola Oladele Oso, G A Williams |
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| Rok vydání: | 2020 |
| Předmět: |
Male
Selenium yeast animal structures food.ingredient medicine.medical_treatment Embryonic Development Nigeria Biology Feed conversion ratio Nesting Behavior Selenium chemistry.chemical_compound Animal science food Yeast Dried Food Animals Yolk medicine Animals Vitamin E Animal Husbandry Galliformes Yolk sac Incubation Hatchling Egg incubation Vitamins Animal Feed Diet medicine.anatomical_structure chemistry Dietary Supplements embryonic structures Female Animal Science and Zoology |
| Zdroj: | Tropical Animal Health and Production. 52:2667-2675 |
| ISSN: | 1573-7438 0049-4747 |
| DOI: | 10.1007/s11250-020-02294-7 |
| Popis: | This study investigated the effects of dietary supplementation with vitamin E (vit. E), selenium yeast (Se yeast), or both on egg incubation response, embryonic development, keet quality, and posthatch growth of helmeted guinea fowls. Two hundred and forty 24-week old helmeted guinea fowl hens (average weight 1.75 + 0.22 kg) and cocks (average weight 2.15 + 0.20 kg) were assigned into 24 pens; each pen housed 10 hens and 2 cocks. There were four dietary treatments consisting of a basal diet (control), basal diet supplemented with vit. E (30 IU/kg), Se yeast (0.3 mg/kg Se), or both. Six pens were assigned to each treatment. Egg incubation response were estimated using 504 settable eggs sampled from each treatment collected during 15 to 17 weeks in lay. A total of 72 fertile eggs sampled from each treatment were used for the estimation of embryonic development. Quality of day-old keets hatched was scored based on physical conditions, while posthatch growth was measured for 21 days. Guinea fowl breeders fed diet supplemented with both vit. E and Se yeast produced the highest (P |
| Databáze: | OpenAIRE |
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