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| Effects of taurine and housing density on renal function in laying hens |
| Zi-li Ma, Yang Gao, Hai-tian Ma, Liu-hai Zheng, Bin Dai, Jin-feng Miao, Yuan-shu Zhang |
| College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China; Department of Orthopaedics, Qilu Hospital, Shandong University, Jinan 250012, China; Animal Husbandry and Veterinary Bureau of Dongyang City in Zhejiang Province, Dongyang 322100, China |
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Abstract This study investigated the putative protective effects of supplemental 2-aminoethane sulfonic acid (taurine) and reduced housing density on renal function in laying hens. We randomly assigned fifteen thousand green-shell laying hens into three groups: a free range group, a low-density caged group, and a high-density caged group. Each group was further divided equally into a control group (C) and a taurine treatment group (T). After 15 d, we analyzed histological changes in kidney cells, inflammatory mediator levels, oxidation and anti-oxidation levels. Experimental data revealed taurine supplementation, and rearing free range or in low-density housing can lessen morphological renal damage, inflammatory mediator levels, and oxidation levels and increase anti-oxidation levels. Our data demonstrate that taurine supplementation and a reduction in housing density can ameliorate renal impairment, increase productivity, enhance health, and promote welfare in laying hens.
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Received: 08 January 2016
Published: 05 December 2016
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