First, the importance of water quality: The problem of water quality is mainly related to microbial pollution. Microorganisms containing more than 50 colony units per liter of water can be harmful and require treatment. Less than 10 colony units per liter of water are acceptable to animals. Two: What minerals are provided by water, and what effect they have on pig growth: The common minerals in groundwater are iron, sulfur, chlorine, and magnesium. These minerals can form complexes with calcium, magnesium, and sodium and constitute the total soluble substances in water. It has been reported that when the total solubles in the water exceeds 5000 mg/l, pig diarrhea may be caused, affecting production performance, and impairing the ability of the pig to exercise. Third, the water, iron, sulfur content is too high will damage the health of pigs: high-speed rail will block the water filter and sieve. Sulfur-rich water increases the animal's intake of water, but it has not been confirmed that this water can affect the performance of pigs. However, diarrhea may be caused in piglets when iron and sulfur are particularly high in water. What other components of the water that are harmful to pigs include: Nitrate is present on the surface and in groundwater, and nitrate can be converted to nitrite, which is toxic. Nitrate is converted to nitrite before it is toxic. The concentration of nitrite in water below 100 mg/kg is safe, but when the concentration of nitrite in water is higher than 100 mg/kg, hemoglobin can be converted into methemoglobin. In the blood, methemoglobin does not transfer sufficient oxygen to the tissues. If the methemoglobin content in the blood is too high, the pigs may die. 5. How much water velocity is required in different growth stages of pigs? A: Under normal circumstances, pigs must be able to drink water at any time and have sufficient supplies. The table below shows the recommended flow rates for pigs at different stages of growth. Water flow rate during growth Piglets (10 - 15 lbs) 250 - 500 ml/min Growing Pigs (50 - 140 lbs) 500 - 750 ml/min Finishing pigs (140 - 250 lbs. 750 - 1000 ml/min. Finishing pigs (140 - 250 lbs 1500 ml/min Veterinary Pharmaceutical,Herbal Extract Injection,Injection Veterinary Medicine,Oxytetracycline For Animal Shangqiu Meilan Biological Engineering Co.,Ltd , https://www.melanvaccine.com