Saline Tilapia: A beneficial partner in prawn rearing

It was more than a decade ago when Northern Mindanao’s prawn industry was almost crippled by Vibriosis, a luminous bacterial disease that caused sudden drops in the region’s shrimp production. The destruction caused by this event greatly affected the region’s shrimp producers prompting some intensive farms to close down, while extensive farms which contribute 88% of the region’s shrimps also suffered huge monetary losses.

In Region 10, Misamis Occidental alone has devoted 1,790 hectares of its total brackishwater fishpond area to prawn farming. Of this area, 95% are comprised of extensive farms which are characterized by low stocking densities of about 5 pcs /sq meter and below. These extensive farms are greatly preferred in this region since it is relatively cheaper to maintain but almost always produces high quality shrimp products because of less disease occurrences and problems. Likewise, extensive farming is more environment-friendly since it utilizes naturally available food organisms thus limiting the input of feeds and chemical supplements. Continue reading “Saline Tilapia: A beneficial partner in prawn rearing”

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”