Advantages and Key Management Considerations of the Tiered Layer Cage System

In recent years, advances in the research and development of livestock‑raising equipment have significantly boosted the level of automation. Moreover, with labor costs rising sharply, the pressing need to reduce workers’ physical strain and the influx of a large pool of young, knowledgeable, and skilled professionals have greatly increased livestock producers’ willingness to invest in automated systems. As the livestock industry has evolved, egg‑laying hen‑rearing equipment has undergone substantial changes. Tiered layer cages This model has been widely recognized by numerous layer farms, and its prospects for development are promising.

1. Tiered layer cages Advantages of the system. Layer‑cage rearing equipment is the preferred choice for large‑scale, intensive, automated, and standardized egg‑laying hen production both domestically and internationally. It offers the following benefits: minimal land footprint and high space utilization, facilitating intensive, large‑scale farming; manure is systematically removed through multiple tiers and naturally air‑dried, significantly reducing moisture content, thereby enhancing manure utilization while minimizing environmental impact; fully automated control substantially reduces the need for operators, lowers labor intensity, and boosts productivity; and the fully enclosed housing system helps prevent infectious diseases and improves bird performance.

　　2. Tiered layer cages Key points for managing flocks under this system: (1) Culling time. Because multi‑tier cage systems are less convenient, the time when hens are removed from the cages can be appropriately extended. During the laying period, all vaccines that require immunization—such as those for Newcastle disease, infectious bronchitis, avian influenza, and egg‑drop syndrome—should be administered without exception. (2) Feed transition. When the flock’s egg production reaches 5%, switch from pre‑peak feed to peak‑production feed. This transition should take about one week. The feed must be of high quality, with stable nutritional content; neither finished feeds nor raw materials should be changed arbitrarily. (3) Monitor the birds’ behavior and droppings. After lights are turned on in the morning, check the house for any unusual odors—such as foul, pungent, or irritating smells—which may indicate poor ventilation or digestive disorders like colibacillosis. Assess whether the feces are normal in color; large amounts of yellow‑green or yellow‑white droppings suggest the birds may have experienced significant stress, warranting prompt antibody testing. Evaluate the consistency of the droppings: if they are excessively dry, consider possible malfunctions in the water‑supply system, inadequate water intake among newly introduced birds, or even a lack of access to water. Ensure there are no lethargic or dead birds; any dead birds should be immediately subjected to necropsy and pathological examination by a veterinarian. Analyze all these observations and promptly implement effective measures to diagnose and control any outbreaks.

　 　Tiered layer cages Maintenance: To ensure Tiered layer cages The equipment’s service life can be extended by lubricating the transmission chain sprockets, gears, and other drive components in the gearbox once a month during operation; applying lubricant to all drive sprockets of the central egg collector; lubricating both the central manure‑conveying system and the central egg‑conveying system; promptly cleaning the surfaces of the egg‑conveying rollers and manure‑conveying rollers to prevent debris buildup that could cause the conveyor belts to rupture or the roller shafts to break; regularly removing impurities from the soft‑broken‑egg collection tray; adjusting side‑wall and roof ventilation in the ventilation system according to the season; and keeping lighting bulbs clean at all times to avoid reducing light intensity.