Hostazym® X Demonstrates its Positive Impact on Carp Performance

reading time
Article | 11.02.2020

Aquaculture and aquafeed markets are in a period of fast growth. Along with this, added value nutritional tools are essential to ensure optimal fish performance and efficient use of increasingly expensive resources.

Hostazym® X is a highly efficient fibre degrading enzyme complex, with proven efficacy for increasing nutrient digestibility, resulting in better growth performance and a healthier gut environment in poultry and swine species. But as well as being used in traditional livestock production, Hostazym® X is the only fibre degrading enzyme approved by the European Commission for use in carp feed, an achievement that supports its uniqueness and efficiency in different diets and species.

Figure 1. Specific growth rate (SGR; left) and feed conversion ratio (FCR; right) in three different carp performance trials with Hostazym® X supplemented at 1050 or 1500 EPU/kg feed.


To demonstrate the efficacy of Hostazym® X in increasing performance and improving nutrient utilization in carp, three research trials were set. The trials compared a control diet with a control diet supplemented with Hostazym® X (at 1050 or 1500 EPU/kg), using commercial standard feeds which meet the nutritional requirements of the species and growth stage (diets formulated with fish meal, blood meal, soybean and rapeseed meal as the main protein sources). Trials were conducted with common carp species, during a 90-day growth period using fish at different growth stages. In two of the trials, nutrient digestibility / deposition was also measured.

The results, summarized in Figure 1 and Table 1 clearly show that: 

  • Compared to the control group, all diets supplemented with Hostazym® X in all trials had significantly better final body weight and feed conversion ratio (FCR). 
  • Compared to the control group, all diets supplemented with Hostazym® X had significantly better nutrient deposition for protein and fat.


Table 1. Nutrient retention results in two different trials with Hostazym® X supplemented at 1050 or 1500 EPU/kg feed.


Moreover, the research showed that Hostazym® X supplementation contributed significantly to shifts in intestinal microflora with a clear reduction in E. coli counts and an increase of Lactobacilli populations. This supports the positive effect on carp gut health and aligns with findings in other species.

Key facts

Hostazym® X is a highly efficient enzymatic complex that, when included in a carp diet, leads to:

  • Better performance in terms of increased final body weight and reduced FCR
  • Higher nutrient deposition
  • A healthier gastrointestinal tract environment


With the exception of FCR in trial 2, all results presented were statistically different to the control group, < 0.05.
global presence

Local support from a global company

Huvepharma® has a distribution network which covers more than 90 countries in 6 continents. Find your nearest Huvepharma® representative today.
Find your local contact
about us


Huvepharma® is a fast-growing, global pharmaceutical company with a focus on developing, manufacturing and marketing human and animal health and nutrition products.
more about us

Change country

The Huvepharma® distribution network covers 90 countries in 6 continents. Please select a country from the list below to see the products and services available in that region.

To view all products and services, select Global from the dropdown menu or click .




North America


South America

Change language

Huvepharma has a remarkable distribution network which covers 90 countries in 6 continents. To offer you the best services, we ask you to select your country.


United States

Click here to visit the local website or close this popup to stay on the global website.

Your browser is out of date!

Update your browser to view this website correctly. Update my browser now