Although there are exceptions, animal proteins are generally considered to be of higher quality than plant proteins, primarily because they typically contain more indispensable amino acids and do not contain antinutritional factors (see SRAC Publication No. Other processing methods may be used to reduce levels of some antinutrients. Some antinutrients, such as trypsin inhibitor, are inactivated by heat during extrusion, but others, such as phytate, are unaffected by heat treatment. Also, certain plant proteins contain antinutritional factors and toxins (see SRAC Publication No.
Compared to animal proteins, most plant proteins, except for soybean meal, are deficient in lysine, the most limiting essential amino acid in catfish feeds.
The primary protein sources used in catfish feeds are oilseed meals, such as soybean meal and cottonseed meal peanut meal and canola meal also can be used. Although we will consider all types of feedstuffs, we will focus mostly on protein feedstuffs, as protein is the most costly fraction of catfish feeds. There are many feedstuffs that may be nutritionally suitable for use in catfish feeds, but relatively few are readily available on a timely basis and at reasonable cost. Protein feedstuffs are further divided by the source, either animal or plant. In animal feeds, those containing 20 percent protein or more are generally referred as protein feedstuffs, and those containing less than 20 percent protein are energy feedstuffs. Although all feedstuffs contain energy, protein, and other nutrients, they are usually classified as either protein or energy feedstuffs. To be suitable, dietary ingredients must be highly digestible, easily handled in the manufacturing process, able to withstand the rigors of the manufacturing process, available on a consistent basis, economical, and contain sufficient nutrients. Feed ingredientsĬommercial catfish feeds are a mixture of feedstuffs and vitamin and mineral supplements that provide adequate amounts of essential nutrients and digestible energy. In this publication we examine various feed ingredients that are or could be used in catfish feeds, as well as feed formulation guidelines and various types of feeds. It is important that using less expensive alternative feedstuffs not degrade the nutritional and physical quality of the feed, fish growth, processed yield, and product quality. This can be achieved by carefully selecting and blending various traditional and alternative feedstuffs that are suitable for use in catfish feeds. While the need for more economical feeds is clear, it is imperative that catfish feeds are formulated to be cost-effective, not just less costly. These traits range from fishes that will bite immediately, to those that will dart away quickly when they sense a human presence.Feed represents the largest variable cost in catfish production. You'll need to take these traits into consideration when you're setting up your gear or heading out to specific bodies of water to find fish.
Not only does each fish species have its own habitat and bait preference, they also have unique traits. Clicking on the name of the species will take you to their individual pages that have more detail on them, including bait and lure preferences and the gear you'll need to catch them. In the table below, you'll find all of the fish species. You can access your handbook by pressing 'H' and navigate to the Reserve Population tab to find out more information on the types of fish you've caught, as well as records for best weight, length and score. There are currently 12 fish species to be found in the Golden Ridge Reserve.
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