Effects of Flaxseed Oil and Vitamin E Supplementation on Digestibility and Milk Fatty Composition and Antioxidant Capacity in Water Buffaloes

Animals

Erica Machado¹  LuciaM. Zeoula¹  NadineW. Santos¹  BrunaC. Agustinho¹  MarianaR. Stemposki¹  JanainaM. Bragatto¹  EmersonH. Yoshimura¹  JessycaC. R. Ribas¹  AntonioP. Faciola²  VanessaJ. dos Santos³ 

[1] Department of Animal Science, State University of Maringa, Maringa PR 87020-900, Brazil;Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA;Department of Chemistry, State University of Maringa, Maringa PR 87020-900, Brazil;

关键词: dairy;    digestibility;    fat;    oxidation;    tocopherol;   

DOI  :  10.3390/ani10081294

来源: DOAJ

【 摘 要 】

This study aimed to evaluate the effects of the supplementation of flaxseed oil and/or vitamin E on dry matter (DM) and nutrient digestibility, milk composition, fatty acid composition, and antioxidant capacity in buffalo milk. Four crossbred female dairy water buffaloes (97 ± 22 days in milk; 6.57 ± 2.2 kg of milk/day, mean ± SD) were distributed in a 4 × 4 Latin square design, with a 2 × 2 factorial arrangement (with or without flaxseed oil at 25 g/kg dry matter; with or without vitamin E at 375 IU/kg dry matter). The experimental period was divided into four periods of 21 days each (16 days for adaptation; five days for data collection). There were four treatments: control diet (no flaxseed oil and no added vitamin E); flaxseed oil diet (flaxseed oil at 25 g/kg DM); vitamin E diet (vitamin E at 375 IU/kg DM), and a combination of both flaxseed oil and vitamin E. The animals were fed total mixed ratios. For all response variables, there was no interaction between flaxseed oil and vitamin E. Flaxseed oil supplementation reduced neutral detergent fiber (NDF) and acid detergent fiber (ADF) apparent total tract digestibility, increased the n-3 fatty acid concentration in milk approximately three-fold while reducing the n-6/n-3 ratio from 9.3:1 to 2.4:1. Vitamin E supplementation increased NDF apparent total tract digestibility and milk total antioxidant capacity. Although there was no interaction between the treatments; flaxseed oil supplementation in lactating buffaloes increased polyunsaturated fatty acid, while vitamin E supplementation increased antioxidant capacity and decreased oxidation products.

【 授权许可】

Unknown