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标题：Effect of modelled stress and adaptogens on microstructural characteristics of pork from fast-growing hybrid animals
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作者：Anastasia Semenova ; Tatyana Kuznetsova ; Victoria Nasonova 等
期刊名称：Potravinarstvo : Scientific Journal for Food Industry
印刷版ISSN：1338-0230
电子版ISSN：1337-0960
出版年度：2020
卷号：14
页码：656-663
DOI：10.5219/1388
出版社：Association HACCP Consulting
摘要：This research aimed to study the effect of modelled technological stress and the introduction of selenium and dihydroquercetin (DHQ) into pig diets on the microstructure of M. longissimus dorsi muscle tissue. The in vivo experiment was carried out on 36 hybrid young barrows (Large White x Landrace) x Duroc) with an initial live weight of 34 – 36 kg until they reached a weight of not less than 110 kg. The animals were divided into four groups: 1 (C-) – pigs did not receive adaptogens and were not subjected to modelled technological stress; 2 (C ) – pigs did not receive adaptogens but were subjected to stress via relocation of animals; 3 (С Se) – pigs were subjected to stress and received 0.2 mg Se.kg -1 feed as selenium proteinate in addition to their diet; 4 (С DHQ) – pigs were subjected to stress and received 32 mg DHQ.kg -1 feed in addition to their diet. The best results regarding the muscle tissue condition were recorded in the m usle L. dorsi samples were taken from the carcasses of group 4 (С DHQ). Analysis of variance using the Fisher–Snedecor test confirmed that addition of adaptogens led to an improvement of the pH 24 value (at p = 0.05, f observed = 5.90 > f critical = 4.17) and moisture-holding capacity (at p = 0.05, f observed = 3.04 > f critical = 2.92). The effect of long-term addition of DHQ to pig diets (78 days) on the condition of muscle tissue was studied for the first time, which allowed us to conclude its role in the prevention of myopathic changes in the muscle fibre structure.
关键词：pork;muscle tissue;myopathy;adaptogen;stress
其他关键词：stress