For short straw grass, as the saying goes: “The three grasses are used to grow grass, and there is no material to grow.†Shortening the forage grasshoppers to feed the cattle can save about 20% compared with the whole feed, especially when the whole feed is low or difficult to eat. Crude and hard stem stalks that are fed, if they are fed on short, can be fully utilized and have a high digestibility. Generally, the stems should be bred into 3 to 5 cm.
If the straw can be salted, alkalized or aminated, or crushed and then fed to cattle, the utilization of forage can be increased and the palatability increased, thus saving forage.
Feeding less frequently once fed, cattle easily develop faults that are picky and peculiar to forage, causing forage to be wasted. Less feed Tim, can save forage.
Feeding in the trough changes the bad habit of feeding the fodder directly in the bullpen and feeding the fodder in the trough. In this way, the forage will not be contaminated by faeces, and it will be healthy after being eaten by cattle, free from diseases, and it will also save a great deal of forage.
After the first rough finish, the rough feed should be fed first, at this time, the cattle are hungry for food, and the roughage for feed intake is more. Then, according to its nutritional needs, fine or excellent forage grasses should be fed to give full play to the characteristics of utilization of roughage by ruminants and save forage.
Remodeling the trough trough The shallow trough tends to waste grass when it is grazing. Therefore, when making the trough, the trough should be deepened. Generally, the depth of the trough is about 40 cm.
Residual grass-processing fish farmers used to burn the remaining hard stems of the cattle as fuel. They can be dried and then collected. They can be crushed with a pulverizer into grass powder and then fed, which can be effectively used.
Save the bedding to keep the barn clean and hygienically. Try to use abandoned weeds as a mat for the cattle to reduce forage grass waste.
[Sample requirements]
The collected nasopharyngeal swab samples should be transported at 2°C to 8°C and sent for inspection immediately, and the sample delivery and storage time should not exceed 48 hours.
[Testing method]
1. Before sampling, mark the relevant sample information on the label of the sampling tube.
2. According to different sampling requirements, use a sampling swab to sample in the nasopharynx.
3. The specific sampling methods are as follows:
a) Nasal swab: Gently insert the swab head into the nasal palate, stay for a while and then slowly turn to exit. Wipe the other nostril with another swab, immerse the swab head in the sampling solution, and discard the tail.
b) Pharyngeal swab: Wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with a swab, also immerse the swab head in the sampling solution, and discard the tail.
4. Quickly put the swab into the sampling tube.
5. Break the part of the sampling swab higher than the sampling tube, and tighten the tube cover.
6. Freshly collected clinical specimens should be transported to the laboratory within 48 hours at 2°C to 8°C.
[Explanation of test results]
After the sample is collected, the sampling solution turns slightly yellow, which will not affect the nucleic acid test result.
[Limitations of the test method]
1. For samples that are seriously contaminated due to improper storage after collection, the final test results will be affected.
2. If the sample is not stored at the specified temperature, the final test result will be affected.
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