“Crayfish are suitable for rearing in reservoirs, rice fields and ponds. This year crawfish farming will be pushed in the hilly areas of our province. We recommend several shrimp farming models that are suitable here for your reference.” As a crayfish expert, Yang Zhihang Willing to share this practical technology with everyone.

He recommends three breeding modes:

The first is that the pond is single-cultivated, and the yield per mu is between 1000 and 3,000 catties. Attention should be paid to planting aquatic plants to shade them;

The second is to raise shrimp in paddy fields, pay attention to "1-7", that is, one field to dig field ridges, two to dig field shrimp ponds, seven fields of rice, so that about 500 pounds of shrimp per mu, about 1000 pounds of rice production;

Third, fish and shrimp polyculture, the main shrimp, with 20% of the white peony water purification, can produce 1,000 kilos of shrimp, 400-500 kg of fish production.

Antimicrobial central venous catheters are discussed as a device to reduce catheter-related infections. Previously we have reported a study with 223 adult surgical patients randomized to receive either a rifampicin-miconazole-loaded Central Venous Catheter (CVC) (n=118) or a standard CVC (n=105). The antimicrobial CVC was shown to reduce catheter colonization (CC) and catheter-related local infection (CRI) significantly even at long-term catheterization. Here, we present further evaluation of the study focusing on possible benefits for high-risk patients. Subgroup analyses showed a pronounced reduction of CC and CRI in male, overweight and oncology patients. Important covariates were skin colonization for CC and oncological disease for CRI. Odds ratio (OR) for reducing CC was 0.076 (95% CI: 0.016-0.360) and CRI was reduced from 26% to 2.3% (p=0.001) in the cancer subgroup. Ex vivo long-term antimicrobial activity of modified catheters exceeded 4 weeks.

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