Nile tilapia (Oreochromis niloticus L.) fry growth and development effected from feeding with Enzimsporin supplement
The present research has shown the growth and development of Nile tilapia (Oreochromis niloticus L.) fry effected from feeding Enzimsporin probiotic supplement. During the observation period, the weight of tilapia fry population has increased from 119.5g to 619g in the control group, from 121g to 684g in the 1st experimental group 1 and from 119g to 790g in the 2nd experimental group. Thus, the average daily weight gain per fish is 0.44g, 0.51g and 0.6g, respectively in 22 days. During the observation period an increase in body weight of one fish averaged 3.29±1.63g in the control group, 3.75±1.32g in the 1st experimental group and 4.47±2.40g in 2nd experimental group. During the research period the fry in the 2nd experimental group has shown the highest increase in ichthyomass at the end of the experiment, 9.26g (p≤0.05), which is 2.8g (69.53%) more than in the control group. In the 1st experimental group, the increase is 3.23 g (p≤0.05), which has exceeded the indicators of the control group by 0.8 g (75.23%). The outline fish indicators correspond to the general statistical values of tilapia fry development in the given age period.
Nile tilapia (Oreochromis niloticus L.) fry growth and development effected from feeding with Enzimsporin supplement
The present research has shown the growth and development of Nile tilapia (Oreochromis niloticus L.) fry effected from feeding Enzimsporin probiotic supplement. During the observation period, the weight of tilapia fry population has increased from 119.5g to 619g in the control group, from 121g to 684g in the 1st experimental group 1 and from 119g to 790g in the 2nd experimental group. Thus, the average daily weight gain per fish is 0.44g, 0.51g and 0.6g, respectively in 22 days. During the observation period an increase in body weight of one fish averaged 3.29±1.63g in the control group, 3.75±1.32g in the 1st experimental group and 4.47±2.40g in 2nd experimental group. During the research period the fry in the 2nd experimental group has shown the highest increase in ichthyomass at the end of the experiment, 9.26g (p≤0.05), which is 2.8g (69.53%) more than in the control group. In the 1st experimental group, the increase is 3.23 g (p≤0.05), which has exceeded the indicators of the control group by 0.8 g (75.23%). The outline fish indicators correspond to the general statistical values of tilapia fry development in the given age period.
The effect of fish skin mucus on hemostasis indicators of some animal species in vitro in comparison with collagen
Modern pharmacology is actively searching for new sources of natural peptides and developing new methods of their synthesis for further introduction of protein preparations into production, so it is necessary to identify the natural sources of biologically active peptides, such as fish skin mucus. In order to assess the effect of fish skin mucus on animal hemostasis indicators in vitro in comparison with collagen, the hemostatic activity of skin mucus of carp (Cyprinus carpio carpio Linnaeus, 1758) and African clarias catfish (Clarias gariepinus Burchell, 1822) on the blood of cows and dogs was studied. It was found that the most active in the hemostatic relation was the mucus of the African Clary catfish. Hematological and statistical methods of research were used in this work.
The effect of fish skin mucus on hemostasis indicators of some animal species in vitro in comparison with collagen
Modern pharmacology is actively searching for new sources of natural peptides and developing new methods of their synthesis for further introduction of protein preparations into production, so it is necessary to identify the natural sources of biologically active peptides, such as fish skin mucus. In order to assess the effect of fish skin mucus on animal hemostasis indicators in vitro in comparison with collagen, the hemostatic activity of skin mucus of carp (Cyprinus carpio carpio Linnaeus, 1758) and African clarias catfish (Clarias gariepinus Burchell, 1822) on the blood of cows and dogs was studied. It was found that the most active in the hemostatic relation was the mucus of the African Clary catfish. Hematological and statistical methods of research were used in this work.
Influence of starter feeds on general clinical, immunological and biochemical characteristics in calves’ blood
The article presents the results of the starter feed influence on the blood parameters in repair heifers of black-and-white breed. It is established that feeding starter feeds in the amount of 1.5-1.7 kg per head per day contributes to the positive dynamics of some immunological and biochemical hcaracteristics, improves the immunological status of the body.
Use of starter combined feeds in the ration of black-andwhite replacement heifers
The article presents results of the research dedicated to the influence of starter combined feeds on the growth of black-and-white replacement heifers. It has been found that feeding the animals at the age of 2-5 months with the starter combined feeds in the amount of 1.5-1.7 kg per head daily contributes to greater edibility of feeds and increase in average daily gains while optimizing the animal health condition.
