Agricultural Institute, BG-9700 Shumen, Bulgaria
PETROV, P., 2002. Testing of different Fe-compounds in sows and their offspring. Bulg. J. Agric. Sci., 8: 641–643
An experiment with 99 suckling piglets, born by 10 sows, allocated in two groups was carried out. The experiment started four weeks before farrowing and continued until weaning of the piglets at age of 35 days.
It was established that 2 kg/ton Fe-chelate supplemented in the compound feed for the sows during their pregnancy and the suckling period positively affected health status and the weight gain of the piglets. The days spent with diarrhea in percent of the total number of days were fewer – 1.87% versus 3.2% in the control animals. Live weight at farrowing of the experimental animals was higher by 10.5% (P ≤ 0.01), at the end of the experiment by 8% and the average daily gain was higher by 8.8%. The feed conversion per 1kg gain was higher by 31%.