Effects of Photosynthetic Bacteria (Rhodopseudomonas palustris) on the Feeding of Farrowing Sows
To reveal the effects of Photosynthetic bacteria(Rhodopseudomonas palustris) on the feeding of farrowing sows,twelve healthy primiparous sows which were from Landrace and Large White were randomly divided into two groups to carried out the feeding experiments.The basic diet with liquid photosynthetic bacteria as test group(22 days) and the basic diet as control group were designed to investigate the effects of different treatments.The results showed that the daily feed per head was expected to 5.72kg in the test group,and that of the control was just 4.83kg,indicating that the difference between the two groups was extremely significant(P0.01).The average daily sow lactation of the experimental group was 5.72kg,while the control was significantly lower(4.69kg,P0.01).During the entire period,average daily gain of piglets in the two groups was 0.238kg,0.190kg(P0.05),respectively.Estrus interval of the two groups was 5.00d and 6.17d(P0.05) respectively.The diarrhea rate of the test group was 1.19%,remarkably lower than that of the control(5.15%,P0.01).Therefore,Photosynthetic bacteria can improve the feed intake and sow lactation of sows at farrowing as well as reduce the rate of piglet diarrhea.