Poultry Production Practices

694 grams of weight stolen from every chicken. The thief? Something you can't see. Most producers blame genetics or feed quality when growth slows. But research reveals the real culprit hiding in plain sight: ammonia in your litter.   Zhou et al. exposed broilers to just 35 ppm ammonia from day 22. The result? Birds weighed only 1,522 grams at 43 days compared to 2,216 grams in clean air. That's 694 grams lost per bird.   Here's what makes ammonia dangerous: it steals profits silently. No dramatic symptoms. Birds just grow slower. Feed conversion gets worse. You might not even smell it until levels hit 50+ ppm.   The math is brutal. When litter moisture exceeds 25%, bacterial breakdown accelerates. Poor ventilation traps gases at bird level. Your eyes watering in the barn? Ammonia already reached unsafe levels for your flock.   The solution starts with measurement.   Weight tracking reveals ammonia problems before they become obvious. When growth curves flatten, elevated ammonia should be your first suspect. Smart litter management follows: wood shavings, 20-25% moisture, proper ventilation.   Professional operations understand this connection. Environmental control and performance measurement work together. You can't optimize what you can't accurately measure.

A temperature difference of just 5 degrees can cost you 50 grams per bird. Poor air quality creates even bigger problems. Birds exposed to 35 ppm ammonia weighed 694 grams less than birds in clean air conditions. That's nearly a 31% difference in final weight. Heat stress makes birds eat 98 grams less feed daily and gain 151 grams less body weight. When you pack too many birds together, the problem gets worse. Birds housed at 26 per square meter gained 207 grams less than those at 18 per square meter during hot weather. These stress factors work silently. You won't see obvious signs until weeks of poor growth have already happened. The solution is accurate weight monitoring. Weight changes show problems before other symptoms appear. Proper weighing systems like BAT scales help catch these issues early, when you can still fix them. You cannot manage what you don't measure correctly. Sources: Liu, L., et al. (2020). Heat stress impacts on broiler performance. Poultry Science, 99(11), 6205-6211. Son, J., et al. (2022). Effects of stocking density on growth performance under high temperature. Antioxidants, 11(5), 871. Zhou, Y., et al. (2020). Effects of ammonia exposure on growth performance and cytokines. Poultry Science, 99(5), 2485-2493. Quintana-Ospina, G. A., et al. (2023). Effect of environmental and farm-associated factors on live performance parameters. Animals, 13(21), 3312.

🚨 𝐁𝐫𝐨𝐨𝐝𝐢𝐧𝐠 𝐄𝐬𝐬𝐞𝐧𝐭𝐢𝐚𝐥𝐬 𝐟𝐨𝐫 𝐎𝐩𝐭𝐢𝐦𝐚𝐥 𝐂𝐡𝐢𝐜𝐤 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞🚨 Brooding is a critical phase in poultry production, and getting it right from the start can significantly impact the overall performance and health of your flock. 𝐁𝐫𝐨𝐨𝐝𝐢𝐧𝐠 𝐄𝐬𝐬𝐞𝐧𝐭𝐢𝐚𝐥𝐬: The 5 Pillars of Success 𝐅𝐞𝐞𝐝 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Ensure chicks have constant access to fresh, high-quality feed. Observe feeding behavior to identify any issues early. Remember, feed is not just nutrition—it’s energy, growth, and vitality! 𝐖𝐚𝐭𝐞𝐫 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Fresh, clean water should be available 24/7. Supplementary drinkers in the first 3 days can help chicks find water easily. Monitor the feed-to-water ratio daily to ensure adequate water intake—hydration is crucial as newly hatched chicks are 85% water, and dehydration can quickly lead to culling or even mortality. 𝐓𝐞𝐦𝐩𝐞𝐫𝐚𝐭𝐮𝐫𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Maintain optimal temperatures and adjust based on chick behavior and humidity levels. Chicks from younger parent stock may need 1°C higher temperatures than old parent stock chicks. 𝐕𝐞𝐧𝐭𝐢𝐥𝐚𝐭𝐢𝐨𝐧 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Effective ventilation ensures good air quality, controls moisture, and helps regulate temperature. Avoid drafts and never sacrifice ventilation for temperature or vice versa. 𝐋𝐢𝐠𝐡𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Adequate lighting stimulates feeding and activity, crucial for early growth. Adjust lighting to create a comfortable and active environment for the chicks. 𝐂𝐫𝐢𝐭𝐢𝐜𝐚𝐥 𝐎𝐛𝐬𝐞𝐫𝐯𝐚𝐭𝐢𝐨𝐧𝐬: 𝐓𝐡𝐞 𝐀𝐫𝐭 𝐨𝐟 𝐁𝐫𝐨𝐨𝐝𝐢𝐧𝐠 𝐂𝐡𝐢𝐜𝐤 𝐃𝐢𝐬𝐭𝐫𝐢𝐛𝐮𝐭𝐢𝐨𝐧: A healthy brooding environment will have 1/3 of chicks at feeders, 1/3 at drinkers, and the rest resting or moving. Uneven distribution signals are a need for adjustments. 𝐁𝐞𝐡𝐚𝐯𝐢𝐨𝐫 𝐌𝐨𝐧𝐢𝐭𝐨𝐫𝐢𝐧𝐠: Chicks should be comfortable, active, and show natural behaviors like eating, drinking, and resting. 𝐄𝐧𝐯𝐢𝐫𝐨𝐧𝐦𝐞𝐧𝐭𝐚𝐥 𝐂𝐡𝐞𝐜𝐤𝐬: Regularly assess litter condition, air quality, and equipment functionality. The goal is to provide a stable, clean, and safe environment. 𝐐𝐮𝐢𝐜𝐤 𝐓𝐢𝐩𝐬 𝐟𝐨𝐫 𝐎𝐩𝐭𝐢𝐦𝐚𝐥 𝐁𝐫𝐨𝐨𝐝𝐢𝐧𝐠: Shed temperature should be 32-33°C Floor temperature 28-30°C Maintain humidity at 60-70% Regularly check all the operating system 𝑲𝒆𝒚 𝑹𝒆𝒎𝒊𝒏𝒅𝒆𝒓: Never sacrifice temperature for ventilation and vice versa. A well-brooded chick can quadruple its body weight by 7 days, showing the direct impact of your care on performance. 🐥📈 DOC = 40g and 07 days = 160g ✌𝓛𝓮𝓽 𝓽𝓱𝓮𝓶 𝓮𝓪𝓽 𝓭𝓻𝓲𝓷𝓴 𝔀𝓪𝓵𝓴 𝓪𝓷𝓭 𝓡𝓮𝓼𝓽✌ "𝑮𝒊𝒗𝒆 𝒕𝒉𝒆𝒎 𝒍𝒐𝒕𝒔 𝒐𝒇 𝒄𝒂𝒓𝒆 𝒏𝒐𝒘 𝒂𝒏𝒅 𝒕𝒉𝒆𝒚𝒍𝒍 𝒑𝒂𝒚 𝒚𝒐𝒖 𝒃𝒂𝒄𝒌 𝒘𝒊𝒕𝒉 𝒍𝒐𝒕𝒔 𝒐𝒇 𝒑𝒓𝒐𝒇𝒊𝒕" 💡 🔍 Remember: A well-managed brooding phase not only supports healthy chick development but also sets the stage for high performance throughout their lifecycle. #Brooding #PoultryFarming #ChickManagement #PoultryProduction #Biosecurity

186. 🚨 The Invisible KPI That Is Costing You Performance in the Hatchery Most hatcheries measure: ✔ Hatchability ✔ Chick yield ✔ Eggshell temperature ✔ Early mortality But very few measure something even more critical in the first hours of life: 👉 Chick Vent Temperature. And that’s where performance is silently won… or lost. According to the Aviagen "How To – Check Your Chicks Are Comfortable" guide, newly hatched chicks cannot regulate their body temperature. If they are: ❄ Too cold → they huddle, burn energy, reduce future performance 🔥 Too hot → they pant, dehydrate, lose water rapidly And both scenarios impact broiler results. 🎯 The Target Range Optimal chick vent temperature: 39.4 – 40.5°C (103 – 105°F) Below 39.4°C: 1. Cold drafts 2. Wet floors 3. Poor air circulation 4. Chicks held too long Above 40.5°C: 1. Poor airflow around stacks 2. Boxes too close together 3. Boxes near heaters or walls This is not theory. This is measurable biology. 🔬 How to Measure It Properly The guide recommends using a medical infrared ear thermometer (e.g. Braun ThermoScan®) Key protocol points that many overlook: 1.    Measure within 10 minutes if chicks are removed from environment 2.    Sample top, middle and bottom of stacks 3.    Measure 5 chicks per location 4.    Avoid chicks with wet vents 5.    Never sample from the center of a huddle This is where hatchery management becomes science, not guesswork. 🧠 Why This Matters Strategically If chicks leave the hatchery outside optimal thermal comfort: You are exporting stress. And stress in the first hours translates into: • Lower early feed intake • Uneven flock development • Higher FCR • Compromised immune response Chick comfort is not an animal welfare box-ticking exercise. It is a performance driver. When was the last time you audited chick vent temperature across: • Hatchers • Chick rooms • Trucks • First 48 hours in brooding Are you measuring it, or assuming it? #HatcheryManagement #ChickQuality #BroilerPerformance #Incubation #TechnicalManagement #Ross308 #Aviagen  

❄️ Chill Effect in Broiler Ventilation Definition: The chill effect refers to the cooling sensation experienced by broiler chickens when air moves across their bodies. This airflow increases heat loss, making the birds feel colder than the actual air temperature. --- 🔄 How It Happens: When ventilation fans create airflow inside the poultry house, it removes the heat from the bird’s body surface. This increased air velocity enhances convective heat loss, creating a "wind chill" effect—especially in young chicks who are more sensitive to cold. --- ✅ Benefits: Helps reduce heat stress during hot weather. Maintains better bird comfort and performance when used correctly. --- ⚠️ Risks: If overdone, especially with young chicks or during cold weather, it can lead to: Cold stress Reduced growth rate Higher mortality --- 💡 Best Practices: 1. Match Airspeed to Bird Age , Adjust the house temperature, taking into account air speed, humidity, and chill effect 2. Avoid Direct Air on Chicks Don’t blow strong air directly on chicks. Use air deflectors or baffles to redirect air above bird level. 3. Monitor Bird Behavior Huddling: Birds are cold → reduce airflow or increase temperature. Even spreading: Good comfort. Panting or spreading wings: Too hot → increase airflow. 4. Use Sensors and Controls Use temperature sensors at bird level, not just at controller height. Some systems include air velocity sensors to maintain optimal conditions. 5. Avoid Over-Ventilating at Night Hot climates often cool at night. Reduce airflow during cooler periods to prevent chilling.

Chicks require specific environmental conditions and careful management during the crucial 7- to 10-day brooding period to ensure appetite, behavior, and future performance. Key factors include maintaining a litter temperature of 28-30°C (82-86°F), providing easy access to fresh feed and water, ensuring correct air speed and humidity, offering adequate light, and preheating the entire house before chick placement. Monitoring crop fill and bird behavior is essential to confirm chicks are comfortable and have access to what they need. Environmental Conditions Temperature: Litter temperature should be 28-30°C (82-86°F). Humidity: Relative humidity should be 60-70%. Air Speed: Air speed should be a maximum of 0.15 m/sec (30 ft/min). Preheating: Houses must be preheated and all equipment checked before the chicks arrive. Chicks Access & Feed Access: Chicks need easy and immediate access to water and feed. Feeders: Use appropriate feeder trays and ensure feeding areas occupy at least 90% of the brooding area. Feed: Provide fresh, dust-free crumble or mini-pellet feed frequently in small amounts. Water: Water temperature should be between 18-21°C (64-70°F). Monitoring and Behavior Crop Fill: Monitor crop fill in the first 48 hours to confirm chicks are eating and drinking. Bird Behavior: Constantly observe bird behavior to ensure they are comfortable and not experiencing temperature extremes. Light Intensity: For broilers, aim for 30-40 lux (2.8-3.7 fc) in the brooding area. House Preparation Insulation: Consider improving house insulation, especially the roof. Drafts: Ensure the brooding area is draft-free. Ventilation: Ensure proper ventilation rates are correct.