Nuno is a synthetic antibacterial agent. Quino stupid can influence the body's metabolism, has the function of promoting protein assimilation, and is mainly excreted through the kidneys within 24 hours after consumption. It has very low toxicity when used according to the effective dose, with minimal side effects. Usage: mix uniformly into the feed. The recommended dosage of olaquindox is 50-80 mg per kilogram of dry matter in lamb diets.
(3) Bacitracin zinc is a bacteriostatic growth promoter. It enhances the growth of livestock and poultry by improving nutrient digestion and absorption in the intestine, thus increasing feed utilization and weight gain. It should be added at a rate of 10-20 mg (42-840,000 units) per kilogram of lamb feed. Mix thoroughly before feeding.
(4) Urea phosphate, also known as Niu Yangle, is a non-protein nitrogen feed additive designed for ruminants. It provides nitrogen and phosphorus, and its hydrolysis in the rumen is slower than that of urea, making it safer and more efficient. It helps improve the physiological metabolism of sheep, enhancing the absorption and utilization of nitrogen, phosphorus, and calcium.
When adjusting the typical concentrate formula for fattening sheep, several options are available. For example, replacing cottonseed meal with the same amount of corn, soybean meal, and wheat bran can result in a formula with 46.5% corn, 2.2% soybean meal, and 37.3% wheat bran. Alternatively, replacing sunflower cake with cottonseed cake and reducing wheat bran while adding rice bran can lead to a different balance. If peanut cake replaces 10% of the soybean meal, 8.77% peanut cake should be added, with adjustments to corn and wheat bran accordingly. To reduce corn usage, sorghum, wheat, or broken rice can be added. High-quality forages like glutinous rice flour or clover powder can replace bran-based feeds in the concentrate formula.
The amount of mixed concentrate depends on the daily needs of the sheep. When roughage is the main component, energy becomes the most limiting nutrient, especially for growing, fattening sheep, lactating ewes, and breeding rams. Adjusting the concentrate formula to meet energy requirements may cause excessive crude protein levels, which is not economical. Conversely, focusing only on crude protein might leave energy levels too low, failing to achieve the desired results. Therefore, when using concentrate formulas, it’s important to assess whether additional energy sources are needed.
For weaning lambs, formulas 7–10 are suitable for lambs weighing around 30 kg, with a daily intake of 1.4 kg, including 1.22 kg of mixed concentrate and 0.18 kg of green hay. Additional vitamin-rich feeds can be included to support growth. As lambs grow, the crude fiber content in their diet can be gradually increased, such as by replacing green hay with leaves or high-quality forages like alfalfa. Some concentrates can also be replaced with grain by-products.
With the adjustment of China’s agricultural structure, the promotion of sheep farming techniques has gained increasing attention from both local governments and farmers. House feeding and fattening not only help protect the ecological environment and utilize large amounts of crop straw but also improve the quality of sheep and their products while reducing feed and production costs.
Feed selection should be as diverse as possible to complement nutrients between different feed sources, thereby increasing the overall nutritional value of the diet and improving its utilization efficiency. This helps optimize feeding strategies and ensure better animal performance.
Additionally, when using feed additives, it’s important to consider the characteristics of each type. For instance, amino acid additives should be protected beforehand to maintain their effectiveness during digestion. Proper handling and application of these additives can significantly enhance the productivity and health of livestock.
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