There are two major sources of fish food: one is natural food, and the other is artificial feed that is artificially produced according to the nutritional needs of fish. In the current large-scale farming conditions, artificial compound feed has become an important source of nutrients needed for growing fish. However, in the face of the current wide variety of artificial compound feeds, how to choose beverages and adopt scientific feeding methods to obtain the best economic benefits is a concern for every breeder, and now we have a general understanding of the use of feed in aquaculture. It is to discuss several points of view for your reference.
I. The relationship between aquaculture costs and prices
The average ratio of feed costs to aquaculture is 40% to 50%, and the average high is about 65%. Therefore, it is very important for farmers to obtain better economic benefits and reduce feed costs. Some people often think that feed prices are low, investment is low, and costs are low. This is especially true in economically underdeveloped regions. However, the results of feed use are not the case. Please see the following examples.
Unit Fish Yield Feed Cost = Feed Rate Feed Price
From this we can see that the feed cost per unit of fish production is determined by the bait factor and the feed price, and there are two options when choosing feed:
A. The bait coefficient is higher, but the feed price is lower (Tongwei pond material 503, bait coefficient 1.85, ton price 2150 yuan).
B The bait coefficient is low, but the price is higher (Tongwei pond material 190, bait coefficient 1.25, ton price 3050 yuan).
1. The results of its use without considering the influence of other factors:
A feed unit fish weight increase cost = 1.852.15 yuan / kg = 3.978 yuan / kg
B. Fish Feed Unit Weight Gain = 1.253.05 Yuan/Kg = 3.813 Yuan/Kilogram
That is, B feed can save 0.165 yuan per kilogram of fish production compared to A feed, and it can save 165 yuan per ton of fish, so the cost of large-scale breeding is considerable.
2. We then discuss the price relationship from the feed coefficient:
The above A and B feeds are taken as an example. Under the premise of keeping the unitary fish's weight-increasing feed costs unchanged, what should be the feed coefficient high and low feeds?
A feed ton price of 2150 yuan, the feed coefficient of 1.85, then the cost of raising a ton of fish is 3977.50 (21501.85) yuan.
B feed feed coefficient 1.25, then the price should be how much?
Then B feed price should be 3977.501.25 = 3182 yuan.
In other words, the price of B feed should be 3182 yuan/ton, while the actual B feed sold is only 3,050 yuan per ton, and the difference between the calculated price (less) is 132 yuan, that is, the use of B feed per A ton of fish is more expensive than A feed per ton of fish. Get a discount of 132 yuan.
It can be seen from the above results that, in feeding, a feed with a low feed coefficient is selected, but as long as its feed quality is high, the cost of fish production is low, and vice versa.
Second, the relationship between feed quality and growth rate
Assuming a baiting rate of 4%, a 1000 kg fish pond is used as an example to feed the A and B feeds.
A feed bait material 1.85, then the daily gain is (10004%)/1.85=21.62 kg
B. The feed bait coefficient is 1.25, and the daily gain is (10004%)/1.25=32 kg.
1. The same growth for 100 days, A feed 2162 kilograms of long fish, B feed can be 3200 kilograms of long fish, more than A feed fish 1038 kilograms.
2. With the same increase of 2162 kg, A feed needs 100 days, then B feed only 67.6 days (2162 kg 32 kg/day), 32.4 days less than A feed.
That is, at the same time (100 days), the B feed had 1038 kg more fish than the A feed. At the same weight gain, B feed can save 32.4% of the time compared to A feed.
Third, feeding amount and feeding method
1. Feeding amount
According to the species stocking size, quantity, planned growth factor of the fish eaten, and the bait factor.
Namely: Feeding amount = stocking weight increase multiple feed coefficient
In order to calculate the total amount of food needed for the whole year, in order to arrange the annual drink plan and funds, avoid capital and feed gaps and make preparations as soon as possible. Generally, the peak of growth is 7, 8, and 3 months. The amount of feeding accounts for 65% of the whole growth process. During this time, it seizes the opportunity to provide enough food to ensure the normal growth of the fish.
2. Daily volume
Calculated according to the planned feeding amount and proportion of each month for the whole year, it can also be calculated according to the fish's increasing body weight of 1%-5%, and the monthly average feeding amount is obtained. Generally, it is the average amount in the middle, and it is less in the early days. It will be more late in the day.
3. Daily feeding times and times
Summer fry seedlings, the water temperature is higher, the individual is smaller, the number of daily feeding should be not less than 5-6 times, 7-9 months, the fish fed the most prosperous, the fastest growing period, the number of daily feeding should be 4-5 times. After October, as the water temperature decreases, the number of feedings gradually decreases until the fish no longer feed. Each feeding time is not less than 20 minutes, in order to ensure that the fish eat 80% full without waste on the principle.
4. Feeding principle and method
Balance, foot, and good are the general principles. Evenly, according to the requirements of the fish, feed it evenly every day. This will not only prevent diseases and ensure normal growth, but also increase the efficiency of the use of baits. The sufficient amount of feed is to meet the needs of fish. Well, it is the bait. High quality, nutrition, palatable, fresh and so on.
Timing, quantification, and positioning are our basic feeding methods. We also determine the frequency and quantity of feedings in a flexible way, combining weather conditions, water quality, food, and activity.
To sum up, in aquaculture to obtain good economic benefits, we believe that in feed use, mainly depends on the quality, rather than the price (of course, better quality and cheaper). In the case of superior capital and growing conditions, farmers should use high-quality feed and adopt scientific feeding methods.
I. The relationship between aquaculture costs and prices
The average ratio of feed costs to aquaculture is 40% to 50%, and the average high is about 65%. Therefore, it is very important for farmers to obtain better economic benefits and reduce feed costs. Some people often think that feed prices are low, investment is low, and costs are low. This is especially true in economically underdeveloped regions. However, the results of feed use are not the case. Please see the following examples.
Unit Fish Yield Feed Cost = Feed Rate Feed Price
From this we can see that the feed cost per unit of fish production is determined by the bait factor and the feed price, and there are two options when choosing feed:
A. The bait coefficient is higher, but the feed price is lower (Tongwei pond material 503, bait coefficient 1.85, ton price 2150 yuan).
B The bait coefficient is low, but the price is higher (Tongwei pond material 190, bait coefficient 1.25, ton price 3050 yuan).
1. The results of its use without considering the influence of other factors:
A feed unit fish weight increase cost = 1.852.15 yuan / kg = 3.978 yuan / kg
B. Fish Feed Unit Weight Gain = 1.253.05 Yuan/Kg = 3.813 Yuan/Kilogram
That is, B feed can save 0.165 yuan per kilogram of fish production compared to A feed, and it can save 165 yuan per ton of fish, so the cost of large-scale breeding is considerable.
2. We then discuss the price relationship from the feed coefficient:
The above A and B feeds are taken as an example. Under the premise of keeping the unitary fish's weight-increasing feed costs unchanged, what should be the feed coefficient high and low feeds?
A feed ton price of 2150 yuan, the feed coefficient of 1.85, then the cost of raising a ton of fish is 3977.50 (21501.85) yuan.
B feed feed coefficient 1.25, then the price should be how much?
Then B feed price should be 3977.501.25 = 3182 yuan.
In other words, the price of B feed should be 3182 yuan/ton, while the actual B feed sold is only 3,050 yuan per ton, and the difference between the calculated price (less) is 132 yuan, that is, the use of B feed per A ton of fish is more expensive than A feed per ton of fish. Get a discount of 132 yuan.
It can be seen from the above results that, in feeding, a feed with a low feed coefficient is selected, but as long as its feed quality is high, the cost of fish production is low, and vice versa.
Second, the relationship between feed quality and growth rate
Assuming a baiting rate of 4%, a 1000 kg fish pond is used as an example to feed the A and B feeds.
A feed bait material 1.85, then the daily gain is (10004%)/1.85=21.62 kg
B. The feed bait coefficient is 1.25, and the daily gain is (10004%)/1.25=32 kg.
1. The same growth for 100 days, A feed 2162 kilograms of long fish, B feed can be 3200 kilograms of long fish, more than A feed fish 1038 kilograms.
2. With the same increase of 2162 kg, A feed needs 100 days, then B feed only 67.6 days (2162 kg 32 kg/day), 32.4 days less than A feed.
That is, at the same time (100 days), the B feed had 1038 kg more fish than the A feed. At the same weight gain, B feed can save 32.4% of the time compared to A feed.
Third, feeding amount and feeding method
1. Feeding amount
According to the species stocking size, quantity, planned growth factor of the fish eaten, and the bait factor.
Namely: Feeding amount = stocking weight increase multiple feed coefficient
In order to calculate the total amount of food needed for the whole year, in order to arrange the annual drink plan and funds, avoid capital and feed gaps and make preparations as soon as possible. Generally, the peak of growth is 7, 8, and 3 months. The amount of feeding accounts for 65% of the whole growth process. During this time, it seizes the opportunity to provide enough food to ensure the normal growth of the fish.
2. Daily volume
Calculated according to the planned feeding amount and proportion of each month for the whole year, it can also be calculated according to the fish's increasing body weight of 1%-5%, and the monthly average feeding amount is obtained. Generally, it is the average amount in the middle, and it is less in the early days. It will be more late in the day.
3. Daily feeding times and times
Summer fry seedlings, the water temperature is higher, the individual is smaller, the number of daily feeding should be not less than 5-6 times, 7-9 months, the fish fed the most prosperous, the fastest growing period, the number of daily feeding should be 4-5 times. After October, as the water temperature decreases, the number of feedings gradually decreases until the fish no longer feed. Each feeding time is not less than 20 minutes, in order to ensure that the fish eat 80% full without waste on the principle.
4. Feeding principle and method
Balance, foot, and good are the general principles. Evenly, according to the requirements of the fish, feed it evenly every day. This will not only prevent diseases and ensure normal growth, but also increase the efficiency of the use of baits. The sufficient amount of feed is to meet the needs of fish. Well, it is the bait. High quality, nutrition, palatable, fresh and so on.
Timing, quantification, and positioning are our basic feeding methods. We also determine the frequency and quantity of feedings in a flexible way, combining weather conditions, water quality, food, and activity.
To sum up, in aquaculture to obtain good economic benefits, we believe that in feed use, mainly depends on the quality, rather than the price (of course, better quality and cheaper). In the case of superior capital and growing conditions, farmers should use high-quality feed and adopt scientific feeding methods.
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