Zinc is one of the trace elements necessary for growth and health maintenance of pigs (especially boars and piglets). Zinc is widely distributed in the body of pigs, with the highest content in semen, followed by the liver, pancreas, muscle, gonads and bones, and trace amounts in the blood. Zinc binds to proteins in the body and activates pituitary and gonadal hormones. Therefore, when the zinc content in the pig feed is insufficient, breeding ability of the breeding boar declines; piglets have poor appetite, growth retardation, skin irritation, pig hair loss, and skin surface area has more scale. If 0.01% of zinc sulfate or zinc carbonate is added to the diet of boars and piglets, this can be prevented. A minimum of 0.2 mg of zinc per kilogram of feed, or 10 g of zinc sulfate or 4 g of zinc carbonate per 100 kg of air-dried feed is required to ensure the growth and breeding needs of the pig.
A fence railing is a structure used to protect and define private or public spaces. It is usually made of different metal materials and is installed around the perimeter of a building, site or area to prevent unauthorized entry or to provide additional security. Fence railings are designed with aesthetics, functionality, and cost in mind.
1. Security & Privacy: Fences prevent outsiders from entering, protecting the safety of occupants or users, while providing a certain amount of privacy to the interior space.
2. Aesthetic decoration: With different designs, materials, and color options, fence railings can become a part of the landscape and enhance the overall aesthetic appeal.
3. Boundary Definition: Clearly define the boundaries of a specific area to help people understand what is accessible and what is restricted.
4. Wind and rain protection: In some areas, fence guardrails can also play a role in wind, rain protection, and protect the building from bad weather.
Material Type:
- Metals: such as wrought iron, aluminum alloy, etc., with strong durability and relatively low maintenance costs.
Design & Installation:
- Height: Depending on the purpose of use and regulatory requirements, the height of the fence guardrail may vary.
- Spacing: The spacing between the vertical rods is less than 110mm.
- Material strength: Ensure that the material chosen can withstand the expected environmental conditions and potential impact forces.
- Installation: Consider the ground foundation, soil conditions and terrain characteristics to ensure firm and stable.
Fence guardrails
Xuzhou Guifeng Metal Technology Co., Ltd , https://www.guifengmetal.com