The effects of dietary oleuropein and organic selenium supplementation on performance and heat shock protein 70 response of brain in heat-stressed quail

Sarica S., ÖZDEMİR D., ÖZTÜRK H.

ITALIAN JOURNAL OF ANIMAL SCIENCE, cilt.14, sa.2, ss.226-232, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 2
  • Basım Tarihi: 2015
  • Doi Numarası: 10.4081/ijas.2015.3737
  • Dergi Adı: ITALIAN JOURNAL OF ANIMAL SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.226-232
  • Anahtar Kelimeler: Japanese quail, Heat stress, Natural antioxidant, Blood H/L ratio, Hsp70 gene expression, LOW-DENSITY-LIPOPROTEIN, VITAMIN-E, LIPID-PEROXIDATION, ANTIOXIDANT STATUS, BROILER-CHICKENS, CARCASS CHARACTERISTICS, TRANSCRIPTION FACTORS, BLOOD PARAMETERS, POULTRY, DIGESTIBILITY
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The study aimed to investigate whether dietary supplementation of oleuropein (O) alone or with organic selenium (OSe) will show the similar effects as the dietary supplementation of a-tocopherol acetate (TA) on performance, blood Heterophil/Lymphocyte ratio (H/L ratio) and brain Hsp70 gene in Japanese quails reared under heat stress (34 degrees C). A total of 800 Japanese quails were kept in wire cages in a temperature-controlled room at either 22 degrees C (thermoneutral, TN) or 34 degrees C (heat stress, HS) for 8 h/days and fed 5 different dietary treatments. Quails were fed on a basal diet (NC) or the diets supplemented with TA (TA200) or O (O200) at 200 mg/kg alone or with OSe (TA200+OSe and O200+OSe) to NC. HS decreased the final body weights (BWs) (P< 0.05), the body weight gains (BWGs) (P< 0.01) and feed intake (FI) (P< 0.05) and also deteriorated feed conversion ratio (FCR) (P< 0.05) of quails from 21 to 35 d of age. Moreover, feeding with the TA200, O200, TA200+OSe and O200+OSe diets increased final BWs and BWGs and FI of quails from 21 to 35 d of age (P< 0.05). While HS increased blood H/L ratio (P< 0.05) and brain Hsp70 gene expression (P< 0.001). All dietary treatments except the NC diet on blood H/L ratio and O200+OSe on brain Hsp70 gene expression had positive effects. Consequently, the present study showed that supplementation of O alone or with OSe eliminated the deleterious effects of heat stress on growth performance, blood H/L ratio and brain Hsp70 gene expression of Japanese quails.