The effects of dietary supplementation with red grape pomace treated with ozone gas on ruminal fermentation activities, nutrient digestibility, lactational performance, and blood metabolites in dairy ewes

This study aimed to investigate the effect of red grape pomace (RGP) treated with ozone (O3) gas as a substitute of low-quality alfalfa hay on the ruminal fermentation, nutrient digestibility, and milk production performance of fat-tailed, fed RGP substituted high fibrous alfalfa hay. Present study...

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Bibliographic Details
Published in:Journal of agriculture and food research 2024-12, Vol.18, p.101452, Article 101452
Main Authors: Asadnezhad, Behzad, Pirmohammadi, Rasoul, Alijoo, Yonesali, Khalilvandi-Behroozyar, Hamed, Abdi-Benmar, Hossein, Tirado-González, Deli Nazmín, Hernández Ruiz, Pedro Enrique, Ordoñez, Valente Velazquez, Lackner, Maximilian, Salem, Abdelfattah Z.M.
Format: Article
Language:English
Subjects:
Dairy ewes
Fermentation activities
Milk production
Ozone gas
Red grape pomace
Secondary metabolites
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Summary:This study aimed to investigate the effect of red grape pomace (RGP) treated with ozone (O3) gas as a substitute of low-quality alfalfa hay on the ruminal fermentation, nutrient digestibility, and milk production performance of fat-tailed, fed RGP substituted high fibrous alfalfa hay. Present study was performed in two experimental phases: 1) In situ and in vitro phase: Four Ghezel ewes in their third gestation (30 months old; weighing 51 ± 2 kg) with surgically implanted cannulas in their rumen were used to assess the in situ degradability and to obtain ruminal fluid to assay the in vitro gas production; the treatments were RGP not-processed (control; T0), and RGP processed with O3 for 6 (T1), 12 h (T2), and 24 h (T3). Processing RGP with O3 gas reduced (P 
ISSN:2666-1543
2666-1543
DOI:10.1016/j.jafr.2024.101452