Myometritis of cows is a common disease in pregnant cows, which is also related to the safety of cow production. What is the role of B-ultrasound in the diagnosis and treatment of bovine uterine myositis?

Chronic suppurative endometritis in cows usually results in purulent scabs attached to the upper part of the tail after one month postpartum, and purulent secretions are often discharged when lying down. Rectal examination or B-ultrasound examination of cows reveals incomplete uterine involution and loose uterine horns. The body gradually loses weight and there is little change in body temperature. Due to low milk production, it is extremely easy to be eliminated due to mismatches in large-scale farming conditions on the ranch. The main treatment method is to restore uterine contraction and purification ability. Commonly used povidone iodine preparations are administered 2-3 times, with a 3-day interval between each dose. Inject 0.3g of PG intramuscularly once. After the uterus has slightly recovered, inject 2-3 doses of traditional Chinese medicine injection for promoting blood circulation and removing blood stasis. Feeding is mainly based on high-quality sheep grass, supplemented by appropriate vitamin and mineral rich concentrate to ensure rumen health. The recovery is good, and during the treatment process, it is necessary to use bovine ultrasound to check the effectiveness of the treatment.

Uterine myometritis in cows is caused by toxins produced by chronic endometritis over a long period of time, which stimulate the uterine muscle and cause muscle fiber cell exudation and swelling. The overall thickness and elasticity of the uterine muscle are reduced, and the mucosa is damaged. These factors collectively have a serious impact on the uterine neuroendocrine function, circulatory metabolism system, immune system, etc., directly reducing ovarian function and manifested as long-term lack of estrus. Rectal examination can be diagnosed through two methods: control and finger pressure, or by using bovine B-ultrasound imaging. The treatment of uterine myositis is different from other uterine inflammations, as antibiotics have difficulty penetrating these barriers due to long-term inflammatory reactions, mucosal hyperplasia, and lesion ulcers. The treatment plan consists of three steps: 

(1) Highly stimulating drugs that rapidly induce acute inflammatory reactions on the mucosal ulcer surface. 

(2) Using traditional Chinese medicine preparations for anti-inflammatory and anti-inflammatory effects, promoting blood circulation and removing blood stasis, and combining with antibiotic preparations and oxytocin. Promote the removal of inflammatory products by the uterine muscle blood circulation. Simultaneously apply Huangqi polysaccharide or intramuscular injection of 20mL vitamin ADE injection to enhance the body's immune function. 

(3) Using oil agents to assist in mucosal repair after overall uterine contractions. Old uterine inflammation can also be treated using the three-step treatment method mentioned above. The treatment course is usually 20 days, and the cure rate can reach over 90%. After treatment, bovine ultrasound should be used to check the treatment status.

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