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Matching Livestock Systems with Available Resources |
MEKARN Regional Conference 2007 |
Department of Veterinary Medicine, Agricultural College, Cantho University,
Vietnam
nnxdung@ctu.edu.vn
A study was conducted to observe the effects of feeding growing-finishing diets as dry feed (BS: basal diet), fermented liquid feed (FLF), feed fermented with 4% molasses (FLF4%M), diets supplemented with phytase (BSPhy) and Lacobacillus (BSLac) on performance, nutrient digestibility, excretion of phosphorus and nitrogen, Coliform and Salmonella of pigs from growing to slaughter. Twenty five Pietrain x (Landrace x Yorkshire) pigs (30 ± 1.5 kg) were randomly allocated according to a randomized complete block design to the 5 treatments with five replicates.
Live weight gain, feed conversion ratio of pigs fed FLF and BS were slightly improved as compared to the BS diet. Digestibility of nutrients was not different among diets. Amount of total phosphorus excretion was significantly reduced in the treatment of FLF , BSLac and BSPhy as compared to the BS diet. The numbers of Coliform in faeces of the pigs in the treatment FLF and FLF4%M were significantly lower than those given diets BS, BSPhy and BSLac. Salmonella was totally absent in pigs fed these diets.
It is concluded that fermented feed somewhat improves the live weight gain and feed conversion ratio and significantly reduces the numbers of Coliform in the pig faeces with decreased phosphorus excretion.