The Best Time to Separate Broiler Chickens Into Cages for the First Time
In broiler chicken farming management, separating chicks into cages is the second most crucial management step after receiving chicks. It’s not merely a simple spatial transfer, but a vital physiological and behavioral turning point as chicks transition from the brooding period to the growing period.
The first separation, in particular, directly determines whether the flock receives even access to feed and water, avoids early overcrowding stress, and consequently affects the uniformity of growth, survival rate, and ultimately, the profitability of the entire batch. Separating too early weakens the chicks, making them susceptible to colds; separating too late leads to overcrowding and uneven feeding, causing weaker chicks to become stunted. Therefore, precise timing and operational details are essential. This article will break down the optimal time for the first separation of broiler chickens and outline a complete set of standardized operating procedures before and after separation.
The Optimal Time for First Caging of Broiler Chickens
The first caging of broiler chickens is not fixed on a single day; it needs to be determined based on their age, weight, stocking density, and ambient temperature. The core objective is to ensure a smooth transition in the flock’s physical condition while avoiding overcrowding stress.
1. Basic Reference Age: 7-10 Days Old
Under conventional farming conditions, broiler chickens reach a weight of 150-200g at 7-10 days old. At this time, their feathers are gradually becoming fuller, their thermoregulation ability is enhanced, and their adaptability to the environment is significantly improved. This is the golden window for their first caging.
Timely caging at this stage can effectively alleviate the initial density pressure in the cages, avoiding problems such as competition for feed, queuing for water, and uneven growth caused by insufficient space, thus freeing up space for later skeletal development and muscle growth.
2. Four Basis for Flexible Adjustment
Expert poultry farmers never rigidly adhere to rules; they must learn to adapt their methods based on the chickens’ individual needs, flexibly adjusting the timing of separation according to the following situations:
Based on Density Suitability: When the density of chicks in the cage exceeds 30-35 birds/m², or if frequent fighting or severe overcrowding during feeding and drinking is observed, separation should be initiated as early as 7 days of age. If the chicks are growing slowly (weighing less than 120g at 10 days old), separation can be delayed until 12-14 days of age to avoid increasing stress and mortality in weaker chicks.
Based on Seasonal Temperature: In winter, when temperatures are low and chicks are less resistant to cold, separation is recommended at 8-10 days of age. At this time, the chicks are stronger and better able to cope with minor environmental changes. In summer, when temperatures are high, excessive density can easily cause heat stress; separation can be initiated as early as 7 days of age to reduce heat radiation from the flock.
Based on breed differences: White-feathered broilers grow faster and can be separated into different cages at 7-8 days of age; Yellow-feathered broilers or slower-growing breeds grow relatively slowly and can be separated at 9-10 days of age.
Before Cage Separation
The core of preparation before cage separation is “reducing discomfort caused by sudden environmental changes.” Chickens are sensitive animals; any slight change can trigger anxiety. Careful attention must be paid to three aspects: diet, environment, and equipment.
1. Dietary Management
Feed Control (Preventing Sudden Death): Stop feeding 2-3 hours before cage separation, only providing ample clean drinking water. The purpose of feed control is to prevent overfeeding chickens from being violently squeezed during handling and transportation, leading to crop rupture or sudden death; it also prevents energy deficiency caused by separating chickens on an empty stomach.
Medication in Drinking Water (Anti-Stress): Before cage separation, add Super Vitamins or Vitamin C to the drinking water to enhance the chicks’ stress resistance. Ensure that the waterers are full to avoid water shortages before separation, which can cause restlessness in the flock.
2. Environmental Pretreatment
Temperature Control (1-2℃ Higher): 1 hour before cage separation, adjust the temperature of the new cage (or adjusted cage location) to be 1-2℃ higher than the original environment. This compensates for heat loss during the separation process, preventing cold stress and respiratory illnesses caused by excessive temperature differences. Simultaneously, check for drafts entering the cages.
Light Adjustment (Reduce Brightness): 30 minutes before separation, dim the lights in both the original and new cages to about half their normal brightness. A dim environment significantly reduces the excitement and panic of the broilers, making it easier to catch them and greatly reducing cage collisions and trampling injuries.
3. Efficient and Standardized Operations to Avoid Injury
Tool Disinfection: Prepare clean, odorless catching nets and transfer boxes (turnover baskets). Tools must have smooth edges without sharp protrusions. Transfer boxes must be cleaned and disinfected before use to prevent cross-contamination.
Personnel Division of Labor: Assign 2-3 skilled operators, clearly defining the division of labor for catching, transferring, and releasing the chicks to ensure quick and gentle operation. Operators must have short fingernails and remove jewelry to prevent scratching the delicate skin of the chicks.
4. Reasonable Layout and Proximity Adjustment
Reduce Secondary Density: After separating the chickens into individual cages, the number of broilers per cage (or per square meter) should ideally be controlled to no more than 25-30 birds, ensuring each chicken has sufficient space for feeding, drinking, and resting.
Proximity Separation Principle: Prioritize “nearby transfer,” such as moving chickens from the middle cage to an adjacent upper cage, to reduce sudden temperature changes caused by crossing zones. New cage locations should be pre-filled with bedding material, and the feed troughs and water troughs should be checked for unobstructed flow.
During Cage Separation
The core eight-character principle in the cage separation process is “light, fast, accurate, and stable.” Shortening the operation time reduces stress exposure time.
1. Handling and Transporting Chickens
Handling Method: When handling chickens, pinch them at the base of their wings or legs. Never grab their heads or necks or pull their feathers, as this can cause cervical dislocation or large-scale feather loss. The movements should be light and quick to avoid prolonged gripping that could suffocate the chickens.
Transportation Standards: Do not place too many chickens in each transport box, ensuring sufficient space for movement and avoiding stacking and crowding. Keep the transport route as short as possible, avoiding areas with direct sunlight or cold drafts.
2. Cage Separation Principles
This is the most valuable part of the cage separation operation! Chickens must be separated according to size and strength, strictly avoiding “large bullying small” or “strong bullying weak.” The weight difference among chickens in the same cage should not exceed 10%. This measure quickly improves the evenness of the flock and prevents the emergence of “stunted chickens.”
3. Operation Sequence
It is recommended to operate in the order of “upper layer → middle layer → lower layer”, or gradually move from the original cage location to the adjacent cage location. Avoid disrupting the entire chicken house layout simultaneously to reduce overall panic among the flock. Immediately close the cage doors after each group of cages is completed to prevent the chickens from escaping.
After Cage Separation
The 24-48 hours following cage separation are a peak period for stress response. The core task is to help the flock find water and feed as quickly as possible and stabilize their emotions.
1. Environmental Restoration
Light Restoration: After cage separation, maintain a dimly lit environment in the new cages for 1-2 hours to allow the flock to familiarize themselves with the new space in a quiet state. Then gradually adjust the light back to normal brightness, ensuring the flock can clearly locate the feed and water troughs.
Temperature Maintenance: Within 24 hours after cage separation, maintain the temperature in the new cages 1°C higher than the original environment. Once the flock has fully adapted and is eating and drinking normally (approximately 1-2 days), gradually adjust to the normal rearing temperature.
2. Feed Restoration
Timely Feeding: Observe the flock’s condition after cage separation. Resume feeding only after about 1 hour, when the flock begins to drink water actively and explore the area. The initial feed amount should be 70%-80% of the usual amount to avoid overfeeding and indigestion. Gradually increase the amount to the normal level afterwards.
Continuous Stress Relief: For 3-5 days after separation, continuously add Super Vitamins or multivitamins to the drinking water to supplement nutrition, maintain gut health, and boost immunity.
3. Condition Observation
Immediate Inspection: Within 1-2 hours of separation, conduct frequent inspections, focusing on chickens exhibiting lethargy, unsteady gait, or bleeding injuries. Isolate and treat these chickens promptly. Check feed and water troughs for blockages.
Follow-up Monitoring: For 2-3 days after separation, record feed intake, fecal condition, and activity levels daily. If decreased feed intake, diarrhea, or abnormal squawking occurs, immediately investigate whether the ambient temperature is too low, the density is too high, or the feed is moldy.
The first separation of broiler chickens into individual cages is a crucial step in the rearing process, ensuring both stress prevention and uniformity. It’s not simply a matter of “grabbing the chickens,” but a systematic project combining nutrition, behavioral science, and environmental control.
By seizing the core window of opportunity between 7-10 days of age and adhering to the operational principles of “controlling feed and preparing the environment beforehand, quickly separating stronger and weaker chicks during the rearing process, and stabilizing temperature and promoting feed intake afterward,” you can minimize production fluctuations caused by separation. Providing each chick with a suitable and comfortable environment for growth is not only for survival rate but also for achieving satisfactory “flock uniformity” and “feedback ratio” at slaughter. In poultry farming, no detail is too small; details determine success or failure. May every separation you undertake be safe and efficient!
