Effects of a slow-release nutritional bolus on growth performance, oxidative status, and carcass traits in fattening Holstein bulls.

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Yildirim F., Yildirim B. A., Kesen A. O., Yildiz A.

Tropical animal health and production, cilt.58, sa.8, 2026 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Sayı: 8
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1007/s11250-026-05342-w
  • Dergi Adı: Tropical animal health and production
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, CAB Abstracts, Chemical Abstracts Core, EMBASE, Environment Index, MEDLINE, Natural Science Collection (ProQuest), Biological Science Database (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO), Health Research Premium Collection (ProQuest), Pharma Collection (ProQuest)
  • Anahtar Kelimeler: Antioxidant status, Beef cattle, Carcass yield, Holstein bulls, Oxidative stress, Slow-release bolus
  • Atatürk Üniversitesi Adresli: Evet

Özet

This study investigated the effects of a commercial slow-release bolus supplement (“Dietevit™ Tonic”) on growth performance, carcass characteristics, and oxidative stress biomarkers in fattening Holstein bulls. Twenty-four Holstein bulls (443.34 ± 25.47 kg) were randomly allocated into control and treatment groups (n = 12/group) and were fed the same basal ration under commercial farm conditions. Animals in the treatment group received a single oral bolus administration at the beginning of the trial. Body measurements, body weight, salivary oxidative stress biomarkers, and slaughter characteristics were evaluated during the 121-day trial period. On day 121, body weight, chest circumference, and chest depth were significantly higher in the bolus-treated group compared with the control group (P < 0.05). Antioxidant enzyme activities (SOD, CAT, and GPx) were significantly increased, whereas MDA and IMA concentrations were significantly decreased in the treatment group (P < 0.001). was higher in the supplemented group (61.76%) than in the control group (58.92%). The findings suggest that Dietevit™ Tonic bolus supplementation may improve growth performance, carcass characteristics, antioxidant status, and welfare-related parameters in fattening Holstein bulls under commercial production conditions.