Silkworms (silkworm moth insects silkworm larvae excrement) actually can feed goats! This has become a reality in the silkworm county - Lezhi County. On April 21st, the reporter saw in Tianlong Science and Technology Demonstration Park in the county that staff members were feeding and matching the silkworm sand with feeds such as wheat bran and soybean meal to feed black goats. It is understood that the mystery of adding silkworm sand to goat feed is that it can replace a portion of straw and fine material, thereby saving 1/3 of the cost of feed, which is equivalent to a 1/3 increase in the profit of raising sheep. Cost-effectiveness and cost reduction Lezhi County has unique resources for sericulture, producing at least 5,000 tons of silkworm sand annually. The black goat is also a major feature of farming in Lezhi County. The silkworm sand and the black goat are incomparable to each other. How do they happen? "Feeds are the bottleneck of sheep breeding. If feeds are not well solved, sheep can't feed them well." Zhu Wanling, deputy director of the Science and Technology Bureau of Lezhi County, said, "The use of straw for goat feed not only has high acquisition cost but also has low nutritional value and long-term value. Storage is also a problem. In addition, protein feeds such as corn, soybean meal, and oil are used as concentrates, but they are relatively expensive." How to find a low-cost feed to replace a portion of straw and concentrate? Zhu Wanling said that since 2005, the Science and Technology Bureau of Lezhi County has conducted exploration of silkworm sand feeding on black goats, because “silageworm contains 11% to 13% of crude protein, and corn contains only 7%–8% of crude protein; Sand also contains 17% to 19% of crude fiber, straw contains 20% to 30% of crude fiber, silkworm crude fiber is more appropriate, nutritional value is higher than straw; and, the price of silkworm sand is only 700 yuan/ Tons, much lower than concentrates." Conserving meat from feedstuffs through continuous trials, in 2008, the Lezhi County Science and Technology Bureau conducted a large-scale experimental demonstration in the Tianlong Science and Technology Demonstration Park. They used a bio-based company in Lezhi County to extract chlorophyll-destroyed sand to feed goats. Chlorophyll-containing silkworms have been sterilized and sterilized without affecting the protein content. Afterwards, teachers and students from Southwest University for Nationalities were invited to conduct trials and comparisons. The conclusion is that the use of silkworms as substitutes for concentrates can improve the meat production performance of growing goats. , and has no effect on the quality of goat meat, can save 1/3 of the cost of feed. It is understood that the Tianlong Science and Technology Demonstration Park is a large-scale farm with 890 heads of black goats for many years. The amount of silkworms used for daily use amounts to two to three hundred kilograms. Following the park, another large-scale sheep farm in Lezhi County also uses silkworm sand to feed black goats. "As long as it is a goat, it can be fed with silkworm sand. It is particularly suitable for large-scale breeding farms with a population of more than 100 heads per year." Zhu Wanling said, "However, to feed goats with silkworm sand, we must have silkworm sand resources and have long-term stability. Supply channels, silkworm sand disinfection must do a good job.†The key to master the technology through the trials and demonstrations in Lezhi County, silkworm sand as a large-scale sheep farm efficiency, then, how can we use this technology? Shi Haitao, director of Tianlong Science and Technology Demonstration Park, introduced the technical details. According to him, silkworm sand that has been extracted with chlorophyll is mainly used for silkworms feeding black goats, and silkworm sand that has been extracted with chlorophyll has been disinfected and sterilized, and can be used directly with fine material to feed goats; raw sand is required to be dried, cleaned and cleaned High-temperature sterilization can be used with sheep feed. "The raw sand is to be sterilized on fire for 15-30 minutes, and there is a fragrance. The temperature of the silkworm sand should be about 130°C. Don't fry the paste. The moisture content is lower than 12%. Storage," Shi Haitao said. When used, the chlorophyll-absorbed silkworm or sand after disinfection is mixed with corn, wheat bran, soybean meal, oil withered and trace element additives in a ratio of 3 to 1 (silkworm sand accounts for 3), and then watered Stir, water should not be poured too much, but it must be ensured that every grain of silkworm feed can be watered. Shi Haitao explained the reason for watering. He said: "Silkworm will have to swell 3 times when it encounters water. If you don't water it, it will be easy for the sheep to swell up when it is eaten. Watering can also reduce the irritation of the goat's respiratory tract caused by feed dust and prevent goats from being licked." He said: "The mixed feed can send goats for four or five hours. This kind of feed can only be eaten when the lambs are weaned."
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