【摘要】 为了探讨锌的生理指标及其对猪生长繁殖的影响,对猪的13种组织锌含量进行了测定,并作了补锌试验。试验共分6组。第1组为对照组,2～6组在基础日粮中分别递加锌20ppm,观察不同锌水平对猪生长发育、生产性能及繁殖能力的影响,从我省不同地区采取猪的肝、脾、心、肾、肌肉、脑、血、毛、初乳、常乳、精液、睾丸、附睾等1023个样品,然后进行了测定。结果表明,在自然饲养情况下,锌含量的范围是(以ppm干重计):肝202～440,脾110～253,肾83～212,心肌66～207,骨骼肌114～267,毛116～350。 饲养试验表明,每千克饲料含锌90～100毫克,对肥育猪的生长发育较为适宜。其组织内锌的适宜含量(以ppm干重计),肝445,脾335,肾227,心肌208,骨骼肌233。每千克饲料含锌100～110毫克,对母猪的生长发育、繁殖性能效果最好。更多还原

【Abstract】 In order to investigate the effect of the physiological indices of zinc on the growth and reproduction of pigs, the amounts of zinc in 13 different tissues of pigs were determined and a feeding experiment with zincas an additive was conducted. In this experiment, there were 6 groups of pigs. Group 1 was thecontrol group , as for Groups 2-6, a successive addition of 20 ppm of zinc was made in their respective basic rations. The effects of various levels of zinc content on the growth,development, productivity and prolificacy were observed and 1023 samples of liver, spleen, heart, kidney, muscle, brain, blood, coat, colostrum, milk, semen, testis, epididymis etc.Taken from different regions of Shanxi Province were examined. This experiment shows that under general feeding condition, the ranges of zinc contents ( ppm dry samples ) are. liver 202-440,spleen 110-253, kidney 83-212, cardiac muscle 66-207, muscle 114-267, hair coat 116 -350.The feeding experiment shows that 90-100 milligrams of zinc in one kilogram of feeds is beneficial to the growth and development of fattening pigs.The desirable zinc contents in tissues ( ppm dry samples ) should be: liver 445, spleen 335, kidney 227, cardiac muscle 208, muscle 233. That 100-110 milligrams of zinc in one kilogram of feeds has the best effect on the growth, development, conception, farrowing and prolificacy of sows.更多还原