Poultry, such as chickens and ducks, do not have teeth, which means they rely on their gizzards to grind food. During the early growth stages of chicks and ducklings, it's common to add 0.5% to 1% of fine powder (which can also be replaced with sand) to their feed. This powder helps in grinding the food in the gizzard, aiding in better digestion and nutrient absorption. For adult hens and ducks, which lay nearly one egg per day, a significant amount of calcium is required for the formation of eggshells, which are primarily made of calcium carbonate.
To meet this demand, limestone powder is commonly used in poultry feed due to its high calcium content, affordability, and availability. It typically makes up 8% to 9% of the feed during peak egg-laying periods. However, if egg production decreases, the amount of limestone powder should be adjusted accordingly.
It’s important to note that during the laying period, limestone powder cannot be substituted with sand, as it serves a specific nutritional function that sand does not. The calcium provided by limestone is essential for maintaining strong bones and producing healthy eggs.
The calcium needs of poultry vary depending on their growth stage. If the amount of limestone powder added is consistently above or below the recommended levels, it can lead to serious health issues. Excess calcium may result in conditions like gout, while a deficiency can cause soft bones, weakness, fractures, thin-shelled eggs, or even an increase in broken eggs. Therefore, proper calcium management is crucial for the overall health and productivity of poultry.
Passenger Elevator
According to the national standard GB7588-2003 "Elevator Design Code", the maximum design load capacity of machine room less passenger elevators is generally 630kg, 800kg, 1000kg, 1150kg, 1350kg, 1600kg and other specifications, which are suitable for different transportation needs and scenarios. The advantages of MR elevator are larger load capacity, lower noise, and easier daily inspection and maintenance.
We can supply lifts with a maximum passenger capacity of 3-46 persons, a maximum load of 7000kg (15428Lbs), a travel of up to 120m, and a speed of up to 4.0m/s.
We are one of the world`s most proficient factories in custom design and production,
a comprehensive elevator manufacturing service provider engaging in the development, manufacturing, sales, installation, maintenance and modernization.
APSL Elevator's fully customized design and various decorations provide safe, silent, comfortable, energy-saving elevators and fast services to customers. We offer multiple lift solutions, including a wide range of passenger lifts. Learn about the dimensions, prices and safety features of our passenger lifts, the first step is to get in touch with our technical team to discuss your project in more detail.
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APSL ELEVATOR TECHNOLOGY(SUZHOU) CO.,LTD. , https://www.fujiapsl.com