| Yazarlar |
Hacer Kaya
Türkiye |
|
Musa Karaalp
Türkiye |
Prof. Dr. Özgür KAYNAR
Atatürk Üniversitesi, Türkiye |
|
Emre Tekce
Türkiye |
|
Vecihi Aksakal
Türkiye |
|
Bahri Bayram
Türkiye |
| Özet |
| The study was conducted to determine the effects of stocking density (SD, 5 or 7 layers/cage) and tarragon (Artemisia dracunculus L.) diet supplementation at four levels (0, 1.2, 6 and 12 g/kg feed) on performance, certain egg characteristics, serum, liver, egg yolk and small intestine bacteria parameters in laying hens. The experiment was carried out over a period of 8 weeks, with 192 Lohman Brown commercial hybrids at 50-w-age. The results showed that an increased SD reduced feed intake (FI; p<0.01) and egg production (p<0.05), but had no effect on the weight gain, feed conversion ratio, damaged egg ratio, egg weight and egg quality (p>0.05) parameters. The supplementation of tarragon to the diet reduced the FI and damaged egg ratio (p<0.01), and improved egg production and FCR (p<0.01). While an increased SD reduced serum total antioxidants (p<0.05), it elevated corticosterone (CORT) and total oxidant serum (TOS) (p<0.05). Tarragon was found to enhance total immunoglobulin (p<0.05), but to decreased the CORT and TOS of the serum (p<0.05). An increased SD raised the malondialdehyde (MDA) in the serum (p<0.001), liver (p<0.05) and yolk (p<0.001). Tarragon supplementation reduced MDA of the serum (p<0.05), liver (p<0.001) and yolk (p<0.001). E. coli and total Mesophilic Aerobic Bacteria counts in the small intestine were raised (p<0.001) with increased SD. Tarragon decreased (p<0.05) mesophilic aerobic bacteria. It was thus found that, tarragon supplementation can be considered generally effective in improving performance parameters, alleviating stress-induced negativities, reducing lipid peroxidation, regulating the immune system and controlling some intestinal microorganisms. |
| Anahtar Kelimeler |
| Antioxidant | Bacteria | IgG | Stocking density | Tarragon |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Brazilian Journal of Poultry Science |
| Dergi ISSN | 1806-9061 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | Türkçe |
| Basım Tarihi | 01-2021 |
| Cilt No | 23 |
| Sayı | 1 |
| Sayfalar | 1 / 12 |
| Doi Numarası | 10.1590/1806-9061-2020-1309 |
| Makale Linki | http://dx.doi.org/10.1590/1806-9061-2020-1309 |
| Atıf Sayıları | |
| SCOPUS | 6 |
