| Autor: |
C. DeLeon, M.L. Wiersema, M. Araba, T. Lohrmann, D.A. Koltes |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Journal of Applied Poultry Research, Vol 32, Iss 3, Pp 100361- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1056-6171 |
| DOI: |
10.1016/j.japr.2023.100361 |
| Popis: |
SUMMARY: Egg production and quality decline as laying hens age. To mitigate performance decline, direct-fed microbials are commonly used as feed additives; however, results are not consistent. This study examined the effects of feeding Q-biotic 1DP, a Bacillus subtilis strain, to hens on egg production and egg quality during late lay (>60 wk of age). Data from this study revealed that dietary supplementation of Q-biotic 1DP increased hen-day egg production and egg weight but did not alter feed conversion ratio, hen body weight, mortality, or hen microbial communities. Egg quality was significantly declined; however, all values were found to be within line standards. Therefore, Q-biotic 1DP could be a viable method of maintaining production in late lay hens. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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