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Aqua-Plus Tilapia feed (Prices from)Significance of Feeding the Correct Particle Size; Commercial fish farming depends on providing your fish with sufficient feed that is correct in nutritional value and quality to promote maximum, healthy growth. Although live feeds are important and serve numerous specific needs, it is seldom workable to feed fish exclusively on live feeds. We therefore generally rely on artificial feeds for the feeding of our fish to enjoy the benefits of bulk
Significance of Feeding the Correct Particle Size;
Commercial fish farming depends on providing your fish with sufficient feed that is correct in nutritional value and quality to promote maximum, healthy growth. Although live feeds are important and serve numerous specific needs, it is seldom workable to feed fish exclusively on live feeds. We therefore generally rely on artificial feeds for the feeding of our fish to enjoy the benefits of bulk availability, storage and operational simplicity offered by this option. As artificial feeds are supplied in different pellets sizes, starting from a powder, then a crumble to a large pellet, we naturally need to know how to select the feed size that is best suited to that specific life stage of your fish.
The first thing to consider is the gape of the fish’s mouth; if the pellet cannot fit into the mouth it will not be ingested immediately. As the pellet soaks water and softens, the fish will nibble at it, causing the pellet to fall apart and enabling the fish to eat pieces of the pellet. This causes large amounts of feed to be wasted as bits fall to the floor and certain elements dissolve into the water. However, it is equally important that the pellet should not be too small as the fish will usually not feed to satiation on pellets that are too small. If the pellet can fit into the gape of the fish, but only just, the fish tend not to digest the feed completely. If the feed is not being digested it is clearly not contributing to growth!
Small fish require more protein in their diet than do larger fish of the same species, therefore more protein is included in the diet of the smaller fish, thus in the smaller feed particle sizes. Feeding large fish on small pellets will therefore also result in unnecessary protein in the diet, which translates directly to financial waste as protein is expensive.
How do you know then what the correct pellet size is for a group of fish?
There is no one-size-fits-all type of solution due to the divergent dietary strategies employed by different species of fish. Predators tend to subdue and swallow large, infrequent meals whereas detritivores and herbivores are more inclined to nibble continuously. It is therefore necessary to consider the behaviour of the species you are farming with in determining the most appropriate pellet size. However, the principle is that the feed particle must comfortably fit into the mouth of the fish. Practically, the pellet should be between ¼ to ½ of the area of the gape. Ensure that the fish can comfortably eat the feed being fed.
The first thing to consider is the gape of the fish’s mouth; if the pellet cannot fit into the mouth it will not be ingested immediately. As the pellet soaks water and softens, the fish will nibble at it, causing the pellet to fall apart and enabling the fish to eat pieces of the pellet. This causes large amounts of feed to be wasted as bits fall to the floor and certain elements dissolve into the water. However, it is equally important that the pellet should not be too small as the fish will usually not feed to satiation on pellets that are too small. If the pellet can fit into the gape of the fish, but only just, the fish tend not to digest the feed completely. If the feed is not being digested it is clearly not contributing to growth!
Small fish require more protein in their diet than do larger fish of the same species, therefore more protein is included in the diet of the smaller fish, thus in the smaller feed particle sizes. Feeding large fish on small pellets will therefore also result in unnecessary protein in the diet, which translates directly to financial waste as protein is expensive.
How do you know then what the correct pellet size is for a group of fish?
There is no one-size-fits-all type of solution due to the divergent dietary strategies employed by different species of fish. Predators tend to subdue and swallow large, infrequent meals whereas detritivores and herbivores are more inclined to nibble continuously. It is therefore necessary to consider the behaviour of the species you are farming with in determining the most appropriate pellet size. However, the principle is that the feed particle must comfortably fit into the mouth of the fish. Practically, the pellet should be between ¼ to ½ of the area of the gape. Ensure that the fish can comfortably eat the feed being fed.
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
The history is unpleasant and therefore worth knowing.
It's a wonderfully enlightening history of how European explorers visited, settled in, conquered, and exploited other continents with unparalleled cruelty in the name of power, greed, and their "loving" religion that brought them misery, exploitation and, all too often, abject slavery.
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Reviewed in the United States on March 9, 2025
★★★★★ 5
Wonderful History Lessons
I ordered this book to use for a college paper I was writing and found it fascinating. I enjoyed the content and learned much from it.
The history is written in a manner that for those people that either don't read much or don't like to read (yes, there are a few people out there), it will draw you in and make you question the history lessons we suffered through in high school.
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Reviewed in the United States on January 11, 2013
★★★★★ 5
Excellent and Eye Opening
Where but in America could white men kill 2,ooo,ooo people to prove they are more civilized ?
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Reviewed in the United States on March 16, 2017
★★★★★ 4
Rediscovering America
This is an eye-opening, scholarly rebuttal to common perceptions about native American society before and after the European invasion. Ronald Wright makes no secret of his bias in favor of the people who were here first; in fact, he enhances the impact of what for many will be new information by presenting this extraordinary history from the point of view of the conquered. He also makes clear how large a part of the conquest was due to immune system rather than military deficiencies: if smallpox and other diseases had not done killed most of the native population, the facts recounted here suggest that history, particularly in South America, may have evolved quite differently.
In undertaking the massive task of recounting the invasion of all of the Americas, some selectivity is inevitable. Wright has chosen to focus on the story of five distinct native groups: Aztec, Maya, Inca, Cherokee and Iroquois. He then arbitrarily subdivides the story into three consecutive time periods: Conquest, Resistance and Rebirth. After the physical and political annihilation recounted in the first two sections, the title of the third may seem overly optimistic, particularly for the Guatemalan Maya. However, the concluding tone is more conciliatory and hopeful than mournful, particularly in the Afterword that updates matters to 2005, 13 years after the original publication date. The astounding amount of research involved in producing this admittedly selective overview is well-indexed and annotated.
My only quibble is that Wright, obviously an expert in the field of native culture, sometimes borders on the compulsive in matters of linguistic authenticity. I did not buy this book to learn ancient native languages, let alone their pronunciation, and at times I found the inclusion of such trivia distracted from rather than enhanced the otherwise convincing scholarship. This obsession with accuracy is commendable, but after getting it out of his system in the Author's note, his amazing narrative would have been no less compelling if he stuck to the language of his contemporary audience. Also, for an author who has settled in British Columbia, it is strangely disappointing that the rich history of the Pacific Northwest coastal natives was not among those he chose to examine.
I had read Charles Mann's "1491" prior to this book and found it primed my interest in the subject; both are excellent introductions to the reality of pre-Columbian American societies, but Stolen Continents provides more of a historical context for what has become of them.
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Reviewed in the United States on October 13, 2008
★★★★★ 5
... true things that really went on to know very great
Format: Hardcover
lots of true things that really went on to know very great book
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Reviewed in the United States on October 13, 2016