In the goldfish breeding, diet
is a very important aspect of maintaining goldfish health
besides health management of water quality.
| A、Selecting Proper
Food |
| |
Goldfish food is either natural or accessorial.
The latter consists of the basic food and special food,
all of which can be divided into high-grade and low-grade.
So please take the types and its function into consideration
when feeding goldfish in order to gain a satisfactory
result. For example, the special food for red goldfish
can't be fed to black one. The next thing that you can't
neglect is to see whether goldfish's commercial value
is equal to the cost of food. Low-grade is not worthy
for high quality goldfish. |
| B、 |
Ake
sure the feedings and amount according to the following
four factors |
| 1)． Goldfish Physical
Conditions |
| |
Goldfish is not endothermic and its appetite
varies with water temperature. At 18-28oC, it grows rapidly
and increases metabolism and appetite. Below 10oC and
over 30oC, its appetite reduces. When it is below 5oC,
it normally ingests nothing. So amount of food should
be adjusted at the different growth rates.
Because there is no stomach in goldfish digestive system,
food can be saved after introduction. Remember not to
feed too much a time or the intestine tract is swollen
which causes indigestion. This one is apparent in season
with temperature extremes. It is better to feed small
amount more frequently. But worked up appetite is harmful
to goldfish's health. |
| 2)． Environment Change |
| |
Environment change affects its metabolism
directly. Goldfish is either lost or worked up in appetite.
For example, enough dissolved oxygen can stimulate stomach.
Correspondingly, in raining season and hot summer, food
should be lessened. |
| 3)． Breeding Objective |
| |
Management on goldfish is different from
others. In order to obtain commercial value, goldfish
must be bred to meet marketing demand. Some need rapid
growth and some need to be controlled in a standard size.
Anyway, what we do must keep goldfish healthy. |
| 4)． Growing Stage |
| |
Appropriate increase on feeding will be
better to fries for their growth, and to parent fish for
promoting its gonad. While reducing or stopping, feeding
should be conducted to those in sickness or in bad conditions.
In a word, comprehensive information is very important
in determining feeding times and amount. Scientific and
reasonable feeding is based on constantly accumulated
experience and close observation. Normally, four times
a day is enough. The quantum for supplied food should
be no more than that which can be eaten up within half
an hour and within ten minutes for all goldfish in a tank. |
| C、Feeding Time |
| |
Generally, full feeding is conducted when
water temperature is fittest for goldfish on day. Remember
not to feed too early or too late.
The first feeding time within one day is various in different
seasons. In summer and autumn, it is 7:00 a.m. or 8:30-9:00
a.m. In spring and winter, the last feeding should be
arranged at 4:00 p.m.
In normal cases, there is two hours interval after the
last feeding. |
| D、Precautions |
- Stop feeding while finding anoxemia even light anoxemia.
Feed goldfish while their performing normally for
half an hour after the disappearance of anorexia.
Less food is taken at the first time.
- Stop feeding 1-2 days for new goldfish.
- Avoid feeding at hot summer noon.
- Stop feeding for one day when serious toxic pesticide
is introduced into water.
- Lessen or stop feeding when water quality appears
bad.
- Reduce amount or stop feeding in fresh water pond.
- Reduce amount or stop feeding at temperature extremes.
- Stop feeding 2-3 days before shipment.
- Establish a fixed food table in bigger pond with
deep water.
- Sterilize and cleanse live food before feeding.
- Deteriorated food should be thrown away.
- Don't leave the uneaten food in water for the next
day.
- Don't feed low-grade food to high quality goldfish.
- Make a closely observation on goldfish's reaction
after food introducti
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