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About TTXA comprehensive enterprise specializing in the R&D, production, and sales of feed additives.
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ProductsWe specialize in providing high-quality feed additive solutions for farmed animals, including livestock, poultry, aquaculture, and ruminants.
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News & EventsThanks to its exceptional product quality and service, the company’s market share in the international market has grown steadily year by year, earning high recognition and trust from numerous customers.
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Technology CenterWe consistently adhere to technological innovation as the core driving force and are committed to promoting technological advancement in the industry.
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Contact UsWe look forward to collaborating with more partners to jointly promote the sustainable development of the aquaculture industry and contribute to global food security.
Summer Aquaculture Precautions: Scientific Management to Tackle High-Temperature Challenges
Release time:
2025-05-23
Summer is a critical period for the aquaculture industry. Climatic conditions such as high temperatures, high humidity, and intense sunlight pose serious challenges to the growth and health of livestock, poultry, and aquatic animals. If management is inadequate, these conditions can easily lead to heat stress, outbreaks of diseases, and deterioration of water quality—issues that directly impact farming profitability. To scientifically address summer risks in aquaculture, it is essential to adopt a multi-dimensional approach encompassing environmental regulation, feed management, and disease prevention and control, thereby establishing a systematic protective framework.
I. Environmental Regulation: Creating a Cool Growing Space
High temperatures pose a core threat to livestock farming during the summer. When ambient temperatures exceed the physiological tolerance range of animals, heat stress responses such as reduced feed intake, metabolic disorders, and weakened immune function may occur. Take poultry as an example: when the temperature in a chicken coop exceeds 28°C, for every 1°C increase above this threshold, daily feed intake decreases by 3% to 5%, and egg-laying hens’ egg production rate drops by 2% to 3%. Therefore, physical cooling measures must be implemented as the primary strategy.
1. **Ventilation and Cooling**: Installing negative-pressure fans in combination with wet-pad systems can reduce the shed temperature by 5–8℃. In aquaculture, it is essential to ensure that oxygenators run continuously for 24 hours to maintain dissolved oxygen levels in the water above 5 mg/L.
2. **Sunshade and Heat Insulation**: Cover the roofs of animal shelters with shade nets; aluminum foil-coated materials with a reflectivity of over 70% can reduce roof temperatures by up to 15℃. For open-air ponds, erect shade structures covering one-third of the water surface to prevent direct sunlight from causing rapid increases in water temperature.
3. **Spray Cooling**: For pig houses, a neck-drip system (flow rate of 1.5–2 L/h) can be used; for poultry, a misting device (misting for 1–2 minutes every 30 minutes) combined with cross ventilation at a wind speed of 1.5 m/s can effectively reduce the perceived temperature.
II. Feeding Management: Precision Nutrition Supply Strategy
Under high-temperature conditions, the activity of digestive enzymes in animals decreases, necessitating adjustments to the feeding regimen.
- **Adjust feeding times**: Avoid the high-temperature period from 10:00 a.m. to 4:00 p.m. and shift livestock and poultry feeding to early morning (5:00 a.m. to 7:00 a.m.) and late evening (6:00 p.m. to 8:00 p.m.), with feed amounts accounting for 60% and 40% of the daily total, respectively.
- **Optimize feed formulation**: Increase the fat content by 2%-3% to replace part of the carbohydrates, thereby boosting energy density. Add 0.5% baking soda to help regulate electrolyte balance and supplement 200-300 mg/kg of vitamin C to alleviate stress.
- **Strict Feed Management**: Self-mixed feed should be prepared and used immediately. Finished feed must be stored in a cool, dry place and consumed within 7 days after opening. Moldy feed must be discarded without exception; feed containing aflatoxin B1 at levels exceeding 20 μg/kg is toxic.
III. Epidemic Prevention and Control: Building a Biosafety Barrier
High-temperature and high-humidity environments accelerate pathogen proliferation, necessitating the implementation of a three-tier prevention and control strategy:
1. **Environmental Disinfection**: Perform weekly disinfection using potassium peroxymonosulfate (1:200) or glutaraldehyde (1:1500) in rotation. Pay special attention to thorough cleaning of the drinking water system; immerse the water lines in 0.1% peracetic acid for 30 minutes every 3 days.
2. **Immune Enhancement**: Focus on administering booster vaccinations for avian influenza H5+H7 and porcine reproductive and respiratory syndrome (PRRS), and shorten the antibody-level monitoring cycle to 15–20 days. Add astragalus polysaccharides (500 g/ton of feed) and yeast β-glucan (200 g/ton) to boost immunity.
3. **Pest Control**: Spray cypermethrin (50 mg/m²) around the animal housing area to eliminate mosquitoes and flies; add cyromazine (5 ppm) to the feed to control fly larvae. For aquaculture, periodically apply abamectin (0.03 ml/m³) to kill parasites.
4. Water Quality Management: Maintaining Ecological Balance in Aquatic Systems (Aquaculture Special Project)
1. **Water Quality Monitoring**: Daily testing of pH (7.5–8.5), ammonia nitrogen (<0.2 mg/L), and nitrite (<0.1 mg/L). Every week, change 30% of the water and add EM bacteria (2 ppm) to regulate the algal community.
2. **Substrate Improvement**: Every 10 days, apply potassium bisulfate complex salt (200 g/mu) to oxidize the sediment, combined with Bacillus (500 g/mu) to decompose organic matter.
3. **Stress Prevention**: Before a thunderstorm, apply vitamin C (200 g per mu) and glucose (2 kg per mu) to reduce the stress response in fish.
V. Emergency Management: Establish a Rapid Response Mechanism
Develop a high-temperature emergency response plan, including:
- A backup generator ensures the operation of ventilation equipment.
- Refrigerated storage of heat-relief medications (menthol, Shidi Shui)
- Establish a 24-hour patrol team to monitor animal behavior (e.g., if the respiratory rate of a pig herd exceeds 40 breaths per minute, immediate action is required).
Latest experiment
Broiler Glucose Oxidase Experiment
One-day-old Ross 308 broiler chickens were selected, with a total of 4 chicken houses, each housing 11,000 birds. The birds were randomly divided into a control group and a treatment group, with 2 chicken houses assigned to each group. The control group was fed a commercial diet supplemented with Changle (allicin and oregano phenol) at 100 mL/ton, while the treatment group was fed a commercial diet supplemented with glucose oxidase at 100 U/L. During the trial period, birds had free access to feed and water. The trial lasted for 42 days. The experimental diet consisted of corn, soybean meal, wheat, cottonseed meal, DDGS, peanut meal, duck fat, and premixes, among other ingredients; nutritional parameters are shown in Table 1.
Lactic Acid Bacteria Experiment
Effect of Lactic Acid Bacteria on Broiler Diarrhea: A Raising Experiment Experimental Site: Jiyang Zheng* Animal Husbandry Farm Experiment Period: August 31, 2015 – September 4, 2015 Experimental Subjects: 30-day-old broilers Experimental Design: Control Group: Normal feeding + normal drinking water Experimental Group: Normal feeding + normal drinking water + lactic acid bacteria (liquid)
Piglet Fruit Milk Flavor Experiment
Twenty 28-day-old weaned piglets of the Duroc × Landrace × Large White crossbreed, with similar body weights and in good health, were selected for the trial. They were randomly divided into two treatment groups: a control group and a test group. The control group was fed a basal diet, while the test group was fed a basal diet supplemented with 600 g/t of fruit-milk flavoring. Each group consisted of five replicates, with two piglets per replicate. During the trial period, the pigs had free access to feed and water, and the trial lasted for 28 days.
In this trial, 120 healthy, growing pigs of similar body condition, weighing 80 ± 10 kg, were randomly divided into a control group, an antibiotic group, and an essential oil group. The specific feeding design is shown in Table 1. Each group consisted of 4 replicates, with 10 pigs per replicate. The trial duration was 29 days. The experimental diet was formulated according to the nutritional requirements outlined in NRC (2012). During the trial, pigs had free access to feed and water, and were subjected to routine husbandry management and vaccination protocols. Body weights at the beginning and end of the trial, as well as feed intake, were recorded. At the end of the trial, fresh fecal samples were collected from each pig, placed into sterile 10 ml centrifuge tubes, and stored at -80℃.
Tian Yikang replaces chlortetracycline in the ROSS-308 trial.
This experiment employed a single-factor experimental design. A total of 6,000 Ross-308 broiler chickens, aged 1 day and with roughly similar body weights and good health conditions, were randomly selected and divided into three treatment groups, with five replicates per group, each replicate consisting of 400 chickens. The control group was fed a basal diet based on corn and soybean meal. The experimental group 1, the antibiotic group, had 50 g/t of a 15% chlortetracycline premix added to the basal diet. The experimental group 2, the Tianyikang addition group, had 1,500 g/t of Tianyikang added to the basal diet. The entire experiment lasted for 42 days.
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