การปนเปื้อนของอะฟลาทอกซินในวัตุดิบอาหารสัตว์ และอาหารสำเร็จรูปที่ใช้เลี้ยงไก่ไข่ ไก่กระทง และสุกร ในจังหวัดสงขลา

Abstract

ThisstudyevaluatedaflatoxincontaminationincompletefeedforlayerandbroilerchickensandfatteningpigsinSongkhlaprovince.Theexperimentwasdesignedwitha3×3factorialmethodinacompletelyrandomizeddesignbasedontwofactors,seasonsandsizesoffarm.Bothwereclassifiedinthreelevels,seasonsbasedonrainfall,heavy,

isolated-light and drought, and farms on number of animals. Fattening pigs were classified as more than 500, 300-500 and less than 300, layer as more than 10,000, 5,000-10,000 and less than 5,000, and broilers as more than 5,000, 3,000-5,000 and less than 3,000. Feedstuffs used in this study were corns, soybean meal and fish meal. Both feedstuffs and complete feed were randomly collected and determined for aflatoxin content using a DOA-ELISA test kit. The mean concentration of aflatoxin in all farms was significantly highest (P<0.05) in the heavy rain season, followed by isolatedlight rain and drought respectively, with no differences related to the size of the farms (P>0.05). Aflatoxin concentrations in the feedstuffs on the fattening pigs farms during the three rainfall periods were 92.50, 9.96 and 21.17 ppb, on the layer farms 103.67, 8.16 and 20.67 ppb, and on the broiler farms 102.08, 9.38, 20.75 ppb. For corn, the amount of aflatoxin in the heavy rainfall was 23.75 ppb, isolated-light 7.38 ppb and drought 4.94 ppb. In soybean meal aflatoxin concentrations in the heavy rainfall period were 17.00 ppb, isolated-light 10.00 ppb and drought 2.88 ppb. For fish meal the rates were heavy rainfall at 11.90 ppb, isolated-light 6.69 ppb and drought 1.67 ppb. The mean moisture content in feeds for fattening pigs farms after each level rainfall were 14.08%, 10.72% and 11.41%, for layers 11.43%, 10.17% and 10.55%, and for broilers 12.37%, 10.80% and 11.32%. For corn the mean moisture content after heavy rainfall was 12.51%, after isolated-light 11.88% and drought 10.72%. For fish meal the mean moisture content in heavy rainfall was 10.33%, isolated-light 7.65% and drought 6.68%. For soybean the mean moisture content in heavy rainfall was 11.88%, isolated-light 11.46% and drought 10.98%.