| Autor: |
Gül ET; Department of Animal Science, Faculty of Agriculture, University of Selcuk, Konya 42130, Turkey., Olgun O; Department of Animal Science, Faculty of Agriculture, University of Selcuk, Konya 42130, Turkey., Yıldız A; Department of Animal Science, Faculty of Agriculture, University of Selcuk, Konya 42130, Turkey., Tüzün AE; Kocarlı Vocational School, University of Aydın Adnan Menderes, Aydın 09970, Turkey., Sarmiento-García A; Área de Producción Animal, Department of Construcción y Agronomía, Facultad de Ciencias Agrarias y Ambientales, Universidad de Salamanca, 37007 Salamanca, Spain. |
| Jazyk: |
angličtina |
| Zdroj: |
Veterinary sciences [Vet Sci] 2022 Aug 08; Vol. 9 (8). Date of Electronic Publication: 2022 Aug 08. |
| DOI: |
10.3390/vetsci9080418 |
| Abstrakt: |
Using additives can reduce the negative effects of aging on factors affecting profitability, such as the availability of nutrients, production, and egg quality. Maca is an herbaceous plant rich in protein, crude oil, essential acids, and pharmacological compounds. Maca has positive effects on different health parameters. In this study, the effect of adding Maca powder to the diets of young and old laying quails at the end of the 10-week trial was investigated. In total, 150 laying Japanese quails (Coturnix japonica) (209.1 ± 10.0 g) were randomly distributed to a 2 × 3 factorial arrangement with two ages (10 weeks and 30 weeks) and three Maca powder levels (0, 1, or 2 g/kg), with five subgroups per treatment. According to the study, eggshell quality, total cholesterol, triglyceride, progesterone, and testosterone concentrations of serum were lower in old quail than in young quail, while egg weight, feed intake, and follicle-stimulating hormone increased significantly as quail aged. (p < 0.05). Furthermore, aging negatively affected the histomorphology of the ileum and cortical bone thickness (p < 0.05). Additional findings show that adding 1 g/kg Maca powder to the diet of quail significantly improved eggshell, ileum, and bone traits that deteriorate with age, without affecting performance, and adding 2 g/kg Maca powder to the diet significantly reduced serum total cholesterol levels (p < 0.05). Incorporating Maca powder into the diet of aged birds could reduce the negative effects of aging. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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