The main reason is that the cattle take a lot of fermentable feed, which leads to a lot of gas production, belching blocked, resulting in rapid overexpansion of Rumen.

1.Causes and symptoms: The primary cause is due to the intake of a large number of easily fermented feed, such as the first grazing in early spring or House feeding a large number of succulent and succulent herbage especially leguminous herbage, or eating spoilage feed. Cut Hair at esophagus block, valve stomach atony and block, true gastric ulcer and twist, traumatic sex net gastritis. General acute onset, abdominal girth increased rapidly, the left side of life is the most obvious, drum sound percussion, auscultation rumen early peristalsis increased, later weakened, or even disappeared.

2.Treatment: to discharge the Rumen PNEUMATOSIS and stop yeast-based, and combined with systemic therapy such as infusion. When the disease is mild, the cow can be led to a high before and after the low slope, raised the head of the cow to lead the tongue to induce belching and massage with fist rumen cooperation. Serious disease can be Applied Rumen puncture deflate, deflate to start slowly, to prevent cerebral anemia, preoperative injection of cardiac drugs. The oral antizymotic drug can be taken 0.5 hours after the gas is deflated. Such as: Fish Oil, alcohol, castor oil, fennel oil, can be used thick brine, intravenous anagase, excited gastrointestinal function.