Nutrition
How to Assess Feed Digestibility Through Feces?
By observing the morphology, color, and structure of koi feces, one can intuitively determine whether feed digestibility is optimal. Normally digested feces appear as short, solid strands, dark brown or ink-green in color, sinking slowly in water while remaining intact. If feces are loose, floating, or contain bubbles, it indicates...
Comprehensive Safety Guidelines for Feeding Live Food
Feeding live food can enhance koi's feeding activity and nutritional diversity, but improper handling may lead to parasite transmission, bacterial infections, and digestive system diseases. Below is a systematic procedure for live food processing and feeding, covering full-process control from source selection to post-feeding monitoring. I. Source Selection and Preprocessing...
Key Considerations in the Use of Koi Feed
The storage, usage, and feeding methods of feed directly impact its nutritional value and the health of koi. Below is a detailed analysis of critical considerations: I. Scientific Management of Feed Storage Subpackaging, Light Protection, and Moisture Prevention Large packages of feed should be divided into portions for 7-10 days...
Can Dampened Feed Still Be Used?
Whether dampened feed can still be used depends mainly on whether it has become moldy and how long it has been damp. I. Assessment Criteria Slightly Dampened (discovered within 3 days, only clumped without mold spots) Can be sun-dried or dried at low temperature (below 50°C) Crush before use and...
How to Determine if the Gelatinization Degree of Extruded Feed is Up to Standard?
Assessing whether the gelatinization degree of extruded feed meets standards requires a comprehensive evaluation combining sensory observation, physical testing, and feeding verification. Below is a systematic evaluation method: I. Rapid Sensory Identification Methods Water Solubility and Turbidity Test Soak 10g of feed in 200ml of room-temperature clean water and let...
Processing Differences Between Floating and Sinking Feeds
The fundamental distinction between floating and sinking feeds lies in their manufacturing processes. Floating feed is produced through high-temperature, high-pressure extrusion expansion. In this process, raw materials are heated to above 120°C inside an extruder. Under high pressure, the starch undergoes gelatinization. When the mixture is extruded, the sudden pressure...
Is It Meaningful to Add Liver-Protective Ingredients to Koi Feed?
Under the current trend of pursuing a plump body shape, the high protein and fat content in feed, frequent feeding, and medication use significantly increase the liver burden on koi. Therefore, adding scientifically proportioned liver-protective ingredients to feed is not only meaningful but also a crucial aspect of modern koi...
Evaluation and Practical Guide for Handmade Koi Feed
Handmade koi feed (homemade feed) can significantly promote the growth and development of koi under specific conditions, especially during the autumn fattening period (water temperature 24-26°C), where it can rapidly improve body fullness. Its core advantages lie in flexible formulation and fresh ingredients, allowing for real-time nutritional adjustments based on...
Why Should Probiotics (Lactic Acid Bacteria) Be Mixed into Feed Rather Than Added Directly to Water?
Probiotics (lactic acid bacteria) should be mixed into feed instead of being added directly to water to ensure the viability of the bacterial colonies and achieve targeted colonization benefits. When added directly to water, probiotics are rapidly diluted by water flow, degraded by UV exposure, and adsorbed by filter media—studies...
Is Feed Quality Important?
In modern koi keeping, where the pursuit of broad-bodied, giant koi is prevalent, feed quality is not only fundamental but also a core variable that determines whether the full potential of koi can be realized. The difference between high-quality and ordinary feed extends far beyond the numbers on a nutrition...
Why Do Juvenile Fish Require Feed with Higher Protein Content Than Adult Fish?
The primary reason juvenile fish require feed with higher protein content than adult fish lies in their explosive growth phase during early life. Juvenile fish experience rapid development of muscles, bones, and organs, all of which heavily rely on amino acids from protein as "building materials," resulting in a substantially...
What is the Most Important Quality Assessment Indicator for Koi Feed?
Among the various quality indicators for feed, freshness undoubtedly stands as the primary golden standard—it directly determines the bioavailability and safety of nutrients. Freshness encompasses both the freshness of raw materials (such as the oxidation level of fishmeal and the peroxide value of fish oil) and the preservation state of...
Recent Post
-
How to Assess Feed Digestibility Through Feces?
Feb 07, 2026 -
-
Key Considerations in the Use of Koi Feed
Feb 07, 2026 -
Can Dampened Feed Still Be Used?
Feb 07, 2026 -
-
-
-
Evaluation and Practical Guide for Handmade Koi Feed
Jan 25, 2026 -
-
Is Feed Quality Important?
Jan 25, 2026
