Tag: shrimp

Early Detection of Viral Infection in shrimps possible through use of new protocol

A polymerase chain reaction (PCR) protocol has been developed for the early detection of white-spot syndrome virus (WSSV), one of the most widespread and devastating infectious agents that have hit the shrimp aquaculture industry.

Dr. Lourdes Tapay of BIOTECH_UPLB, Dr. Cesar B. Nadala, Jr. And Dr Philip C. Loh of the University of Hawaii, with support from the Department of Agriculture’s Bureau of Fisheries and Aquatic Resources (BFAR) and the Oplan Sagip Sugpo Task Force, were the developers of the method. The details of the protocol were included in an article entitled “A polymerase chain reaction protocol for the detection of various geographic isolates of the white spot virus” by the Journal of Virological Methods 82 (1999) 39-43, which won for Dr. Tapay an International Publication Award from the University of the Philippine System. Continue reading “Early Detection of Viral Infection in shrimps possible through use of new protocol”

PROLONGING THE SHELF-LIFE OF SHRIMPS

PROLONGING THE SHELF-LIFE OF SHRIMPS

 

Procedure:

 

1. Dry sawdust (from white lauan) under the sun for 1 day.

2. Place in plastic bags and cool in a refrigerator until a temperature of 15° C is obtained.

3. Place the shrimps in a basin of sea water, slowly add ice until it reaches a temperature of 18° C.

4. Remove the shrimps from the water, transfer into the sawdust inside the plastic bags and arrange in a container lined with styrofoam.

5. Place about 300 grams of cracked ice into the plastic bags; seal and place on top of the sawdust.

6. Close the container tightly with a masking tape.

7. On the following day, wash the shrimps with iced seawater.

 

A Japanese expert on shrimps from the Southeast Asia Fisheries and Development Center (SEAFDEC) in Iloilo has conducted this experiment so as to prolong the life of shrimps even when packed for transporting. Results showed that 93% of the shrimps were still alive and could swim when placed in water.

 

Source: Phil. Farmers’ Journal March 1980

Feed pea: Excellent protein source for juvenile shrimps

Feed pea: Excellent protein source for juvenile shrimps
by Junelyn S.de la Rosa

There is good news for shrimp farmers who are looking for an alternative protein-rich feed for juvenile shrimps (Penaeus monodon). Scientists have found that feed pea (Pisum sativum) can be a good substitute to the commonly used soybean meal.
Scientists from SEAFDEC in Tigbauan, Ilo-ilo reported that there were no significant differences in the weight gain, feed intake, feed conversion ration (FCR), and protein efficiency ratio (PER) of juvenile shrimps that were fed with feed pea at different levels of replacement. Continue reading “Feed pea: Excellent protein source for juvenile shrimps”