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Broiler (meat) chickens experience the combined acute stressors of food withdrawal, catching and transport (FCT) prior to slaughter as part of normal commercial practice at the end of their lives. This has associated physiological consequences, potentially affecting both welfare and meat quality, some of which are mediated through altered hepatic function. This study compared global hepatic gene expression between control birds and those exposed to commercial FCT using 20K chicken oligonucleotide microarrays. In response to FCT, 733 genes were differentially expressed of which 486 could be mapped onto the genome. The principal molecular and cellular functions thus affected by FCT involved lipid and carbohydrate metabolism with a suppression of mRNA expression for genes involved in lipogenesis, glycolysis and glycogenolysis and an induction of those involved in gluconeogenesis, fatty acid metabolism and ketone synthesis. There was also significant differential expression of genes associated with cellular control and immune function. These stressful events associated with FCT in commercial broiler chickens altered expression of hepatic genes associated with energy metabolism, with exhaustion of stored hepatic and pectoral muscle glycogen. A better understanding of FCT-induced stress through the use of gene expression arrays may in future inform husbandry practices, to improve both welfare and meat quality. 相似文献
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通过整群抽样方法抽取了576名大学生,对其施测父母养育方式量表、亲密关系体验量表和心理困扰量表,运用结构方程模型技术,分别考察了父母养育方式的蒙汉族差异以及成人依恋模式在父母养育方式和心理困扰间的中介作用。结果表明:(1) 蒙古族父母对孩子的关爱程度和给孩子的自主性要显著高于汉族;(2) 汉族的成人依恋模式在父母过度保护与抑郁-焦虑-压力之间起着部分中介作用,而蒙古族成人依恋的中介作用不明显,但母亲的冷漠拒绝和过度保护会导致个体依恋回避和依恋焦虑,父亲的冷漠拒绝和过度保护会影响个体的抑郁和焦虑,母亲的过度保护和父亲的冷漠拒绝会影响个体的压力。 相似文献
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Ling Jin Chiachih DC Wang Danna Bismar Ivan Carbajal Wenzhen Zhu 《Journal of multicultural counseling and development》2024,52(1):64-78
This study examined the role of cognitive flexibility and collective coping in the relationship between adult attachment and life satisfaction while comparing Black, Indigenous, and People of Color (BIPOC; n = 187) and White (n = 135) groups. Result showed that the relationship between attachment anxiety and life satisfaction was mediated via cognitive flexibility and collective coping only in the BIPOC group. This study informs culturally responsive attachment-based counseling and advances literature from a decolonial perspective. 相似文献
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