母猪产仔前后日粮中添加富铁宝对仔猪生产性能的影响

Effect of Supplementing Ferrous-glycine Chelate to Sow on the Performance of Piglets

选择长大二元杂交母猪30头随机分成2组,在产前1个月至产后21 d日粮中添加不同的铁制剂,研究母猪日粮添加不同铁源对哺乳仔猪生产性能的影响。处理1为对照组,基础日粮+硫酸亚铁150 mg/kg(以Fe计);处理2为试验组,基础日粮+富铁宝(甘氨酸亚铁)400 mg/kg,并添加硫酸亚铁,使两处理铁的含量相同均为150 mg/kg(以Fe计)。试验结果表明,试验组总产仔数、活仔数和初生窝质量分别比对照组提高了3.3%、3.32%和4.52%,仔猪日增质量比对照组提高9.33%。以上研究结果表明,在妊娠和泌乳母猪饲粮中添加富铁宝(甘氨酸亚铁)有提高母猪繁殖性能的趋势,富铁宝在改善哺乳仔猪生长性能方面优于硫酸亚铁。

An experiment was conducted using a total of 30 gestating sows （Landrace × Large White） and their piglets to investigate the effects of supplementing ferrous - glycine complex to sow on the performance of piglets. A completely randomized design was adopted. 30 sows were randomly allocated to one of the two treatments, and the control group fed a basal diet supplemented with 150 mg/kg ferrous as ferrous sulfate, the treatment group fed a basal diet supplemented with 400 mg/kg ferrous-glycine chelate and added ferrous sulfate to make the content of fenvus in diet was 150 mg/kg. The results showed： ① Sows in the ferrous - glycine treatment bore more piglets and more live piglets than sows in the FeSO4 treatments by 3.3 % and 3.32 %, respectively; and total born live litter weight of sows in the ferrous-glycine treatment was heavier than that of sows in the FeSO4 treatments by 4.52%. ② In ferrous-glycine treatment, average daily gain （ADG） of the piglets was higher than that of piglets in FeSO4 treatment by 9.33 %. It indicated the addition of the Feglycine complex to the diets of gestating and lactating sows tended to improve the reproductive performance of sows, and the growth of piglets.