巴西猪肉行业商业日粮中微量矿物质和维生素当前使用水平的调查——一项比较研究。
A survey of current levels of trace minerals and vitamins used in commercial diets by the Brazilian pork industry-a comparative study.
作者信息
Dalto Danyel Bueno, da Silva Caio Abércio
机构信息
Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Quebec, Canada.
Universidade Estadual de Londrina, Animal Science Department, Londrina, Paraná, Brazil.
出版信息
Transl Anim Sci. 2020 Oct 28;4(4):txaa195. doi: 10.1093/tas/txaa195. eCollection 2020 Oct.
This study identified the levels of trace minerals and vitamins used in commercial diets by the Brazilian pork industry and compared these levels against the Brazilian reference tables and those from the North American pork industry. Animal feed companies ( = 15) and cooperatives/agro-industries ( = 15) from the Brazilian pork sector participated in this study. Levels of vitamin A, D, E, and K, thiamine, riboflavin, niacin, pantothenic acid, pyridoxine, biotin, folic acid, vitamin B, choline, vitamin C, cobalt, copper, chromium, iodine, iron, manganese, selenium, and zinc were collected. Data were compiled by feeding phase to determine descriptive statistics. Ratios were calculated comparing the observed levels to those from the Brazilian reference tables and those from the North American pork industry. Average levels of trace minerals and vitamins used by the Brazilian pork industry were between 40% and 240% higher than the recommendations of the Brazilian reference tables. Compared to the North American pork industry, Brazilian levels for trace minerals were overall higher but for water-soluble vitamins they were significantly lower. Large between-companies variations were observed for most of the studied nutrients, especially for water-soluble vitamins. In conclusion, the Brazilian pork industry adds a significant margin of safety for trace minerals and vitamins supplementation. The large between-companies variations, especially for water-soluble vitamins, reflect the limited knowledge available on precise levels of supplementation for trace nutrients for pigs.
本研究确定了巴西猪肉行业在商业日粮中使用的微量矿物质和维生素水平，并将这些水平与巴西参考表以及北美猪肉行业的水平进行了比较。来自巴西猪肉行业的动物饲料公司（n = 15）和合作社/农业产业（n = 15）参与了本研究。收集了维生素A、D、E、K、硫胺素、核黄素、烟酸、泛酸、吡哆醇、生物素、叶酸、维生素B12、胆碱、维生素C、钴、铜、铬、碘、铁、锰、硒和锌的水平。数据按饲喂阶段进行整理以确定描述性统计量。计算了观察到的水平与巴西参考表以及北美猪肉行业水平的比率。巴西猪肉行业使用的微量矿物质和维生素的平均水平比巴西参考表中的建议值高40%至240%。与北美猪肉行业相比，巴西微量矿物质的水平总体较高，但水溶性维生素的水平显著较低。对于大多数研究的营养素，尤其是水溶性维生素，观察到公司之间存在很大差异。总之，巴西猪肉行业在微量矿物质和维生素补充方面增加了显著的安全余量。公司之间的巨大差异，尤其是水溶性维生素方面的差异，反映了关于猪微量营养素精确补充水平的现有知识有限。
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