4 Types of Vannamei Shrimp Harvest Time
Harvesting is the process of taking shrimp from ponds that are more than 100 days old and weigh up to 20 grams per head. This activity is the most anticipated activity by the farmers as the final part of cultivation.
Generally, vannamei shrimp harvest time is done when the shrimp have reached a certain age. However, under special conditions, other types of harvest must be done. For example, when the capacity of the pond is insufficient or when there is a mass death of shrimp.
How Long Does Vannamei Shrimp Harvest?
In one cultivation cycle, vannamei shrimp can be harvested at more than 100 days old or approximately three months old. However, if the pond’s capacity is close to the maximum limit, a partial harvest is usually carried out first to avoid increasing shrimp mortality due to lack of oxygen.
Partial harvest of vannamei shrimp is usually done when the DOC (day of culture) reaches 60-70 days. This is one of the vannamei shrimp cultivation strategies so that shrimp growth remains normal and stable.
Types of Vannamei Shrimp Harvest
1. Normal Harvest
The normal harvest of vannamei shrimp time is usually done when the DOC (day of culture) of shrimp has reached approximately 100 days. In addition, other criteria, namely ABW (average body weight) have reached more than 14 grams.
2. Partial Harvest
Partial harvest in vannamei shrimp culture is usually done to reduce the pond’s biomass or capacity. Because if the capacity of the pond has passed the maximum limit, the growth of shrimp becomes less than optimal.
3. Abnormal Harvest
The next type of shrimp harvest is abnormal harvest. This harvest occurs when the shrimp in the pond experience several symptoms, including a mortality rate of more than 100 heads per day for three consecutive days, slow growth of shrimp, and a decrease in feed daily.
4. Emergency Harvest
The last one is an emergency harvest which was carried out due to an emergency condition. For example, when shrimp are infected with a deadly virus that causes mass deaths of up to 1000 individuals per day, embankments slide, electricity goes out, and waterwheels die.
Cre: delosaqua.com
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Ngày đăng : 18/01/2025
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