文献类型： 外文期刊

作者： Yuan, P. Q. ¹ ; Lin, S. ¹ ; Peng, J. Y. ¹ ; Li, Y. X. ¹ ; Liu, Y. H. ¹ ; Wang, P. ¹ ; Zhong, H. J. ¹ ; Yang, X. M. ¹ ; Che, L. Q. ¹ ; Feng, B. ¹ ; Batonon-Alavo, D. I. ⁴ ; Mercier, Y. ⁴ ; Zhang, X. L. ¹ ; Lin, Y. ¹ ; Xu, S. Y. ¹ ; Li, J. ¹ ; Zhuo, Y. ¹ ; Wu, D. ¹ ; Fang, Z. F. ¹ ;

作者机构： 1.Sichuan Agr Univ, Anim Nutr Inst, Key Lab Anim Dis Resistance Nutr, Minist Educ, Chengdu 611130, Peoples R China

2.Sichuan Agr Univ, Minist Agr & Rural Affairs, Key Lab Agr Prod Proc & Nutr Hlth Coconstruct Mini, Yaan 625014, Peoples R China

3.Sichuan Agr Univ, Coll Food Sci, Yaan 625014, Peoples R China

4.ADISSEO France SAS, CERN, Commentry, France

5.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Key Lab Urban Agr South China, Guangzhou 510640, Peoples R China

6.Huimin Rd 211, Chengdu 611130, Peoples R China

关键词： DL-Methionine; Drip loss; Hydroxy-methionine; Meat tenderness; Pork quality

期刊名称：ANIMAL （ 影响因子：3.6； 五年影响因子：3.7 ）

ISSN： 1751-7311

年卷期： 2023 年 17 卷 11 期

页码：

收录情况： SCI

摘要： Methionine is indispensable for growth and meat formation in pigs. However, it is still unclear that increasing dietary sulphur-containing amino acid (SAA) levels using different methionine sources affects the growth performance and meat quality of barrows and gilts. To investigate this, 144 pigs (half barrows and half gilts) were fed the control (100% SAA, CON), DL-Methionine (125% SAA, DL-Met)-supplemented, or OH-Methionine (125% SAA, OH-Met)-supplemented diets during the 11-110 kg period. The results showed that plasma methionine levels varied among treatments during the experimental phase, with increased plasma methionine levels observed following increased SAA consumption during the 25- 45 kg period. In contrast, pigs fed the DL-Met diet had lower plasma methionine levels than those fed the CON diet (95-110 kg). Additionally, gilts fed the DL-Met or OH-Met diets showed decreased drip loss in longissimus lumborum muscle (LM) compared to CON-fed gilts. OH-Met-fed gilts had higher pH45min values than those fed the CON or DL-Met diets, whereas OH-Met-fed barrows had higher L45min values than those fed the CON or DL-Met diets. Moreover, increased consumption of SAA, regardless of the methionine source, tended to decrease the shear force of the LM in pigs. In conclusion, this study indicates that increasing dietary levels of SAA (+25%) appeared to improve the meat quality of gilts by decreasing drip loss and increasing meat tenderness.(c) 2023 The Authors. Published by Elsevier B.V. on behalf of The Animal Consortium. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).