Tsiplakou Eleni, Mitsiopoulou Christina, Karaiskou Chrysoula, Simoni Marica, Pappas Athanasios C, Righi Federico, Sotirakoglou Kyriaki, Labrou Nikolaos E
Laboratory of Nutritional Physiology and Feeding, Department of Animal Science, Agricultural University of Athens, Iera Odos 75, GR-11855 Athens, Greece.
Department of Veterinary Science, University of Parma, Via del Taglio, 10, 43126 Parma, Italy.
Antioxidants (Basel). 2021 Mar 5;10(3):392. doi: 10.3390/antiox10030392.
This study aimed to determine the impact of sesame meal, selenium (Se), and vitamin E (VitE) on goats' oxidative status. Thirty mid-lactation crossbred goats were divided into five homogeneous groups, and were fed 1 kg of alfalfa hay and 1.2 kg of concentrates daily. The control group (C) received a basal diet. In the concentrates of the treated groups, 10% of the soybean meal was replaced by sesame meal and no extra VitE or Se (SM), or an extra 60 mg of VitE (SME), or 0.1 mg organic Se (SMSe), or their combination (60 mg VitE and 0,1 mg organic Se/kg of concentrate (SMESe). In the plasma of the goats, the dietary treatments did not affect glutathione reductase, glutathione peroxidase, glutathione transferase, catalase, superoxide dismutase activities, malondialdehyde (MDA) content, or the total antioxidant capacity. A reduction and a trend for lower protein carbonyls content was found in goats fed SM ( = 0.03) and SME ( = 0.06) compared to SMESe. In the milk, the lactoperoxidase activity decreased with SMSe and SMESe. A numerical decrease in the total antioxidant capacity and an increase in the MDA content in the milk of the SMESe group compared with the other treated groups was found. In mid-lactation goats, SM improves the oxidative status of both the organism and the milk.
本研究旨在确定芝麻粕、硒（Se）和维生素E（VitE）对山羊氧化状态的影响。30只处于泌乳中期的杂交山羊被分为五个同质组，每天饲喂1千克苜蓿干草和1.2千克精饲料。对照组（C）接受基础日粮。在处理组的精饲料中，10%的豆粕被芝麻粕替代，且不添加额外的VitE或Se（SM），或额外添加60毫克VitE（SME），或0.1毫克有机硒（SMSe），或它们的组合（60毫克VitE和0.1毫克有机硒/千克精饲料（SMESe））。在山羊血浆中，日粮处理对谷胱甘肽还原酶、谷胱甘肽过氧化物酶、谷胱甘肽转移酶、过氧化氢酶、超氧化物歧化酶活性、丙二醛（MDA）含量或总抗氧化能力没有影响。与SMESe相比，饲喂SM（P = 0.03）和SME（P = 0.06）的山羊蛋白质羰基含量降低且有降低趋势。在牛奶中，SMSe和SMESe组的乳过氧化物酶活性降低。与其他处理组相比，SMESe组牛奶的总抗氧化能力数值降低，MDA含量增加。在泌乳中期的山羊中，SM可改善机体和牛奶的氧化状态。
