scholarly journals Methods improving practical implementation of technology of combined recirculating fish farming and intensive crop production

2021 ◽  
Vol 0 (4) ◽  
pp. 105-114
Author(s):  
Elena Mikhailovna Evgrafova ◽  
Alexander Nickolaevich Nevalennyy ◽  
Lina Yurievna Lagutkina ◽  
Aliya Baimuratovna Akhmedzhanova ◽  
Elena Pershina
Keyword(s):  
Body Weight ◽  
Crop Production ◽  
Physiological State ◽  
Aquatic Organisms ◽  
Fish Farming ◽  
The Body ◽  
Organic Load ◽  
Physiological Status ◽  
Practical Implementation ◽  
Feeding Rates

The article focuses on the problem of adopting the effective methods for combined cultivation of food products in cities, which requires the rapidly deployable and scalable aquaponic urban farms for year-round cultivating the aquaculture and crop products. Experimental work on cultivating the agricultural products in a small-sized system of combined recirculating fish farming and intensive crop production (aquaponics) has been carried out. A well-grounded idea of the qualitative and quantitative requirements for feed formulations, the possibilities of their optimization due to including the ingredients of natural origin was obtained. With combined recirculating fish farming and intensive crop production the control over the physiological state of the aquatic organisms grown on feed on their own formulation is carried out on the analysis of special biochemical parameters, which complement the general characteristics of the limits of reference values of homeostasis constants and determine the physiological status of fish. Feeding rates (% of body weight) of fish determine the amount of organic load for nutrition of plant growing objects, in particular leafy greens. In the course of research it was found out that when feeding sterlet (100 g) with the developed feed with protein content 45% the feeding rate is 4% of the body weight. The equivalent area 1 m2 with leafy greenery accounts for 40–50 g of feed with a mass of water bodies up to 5.0 kg/m3.

ASSESSMENT OF BIOINDICATORS OF HOMEOSTASIS CONSTANTS REPAIRING STURGEON FISH STUFF

Fisheries ◽  
2021 ◽  
Vol 2021 (5) ◽  
pp. 97-100
Author(s):  
Aliya Akhmedzhanova ◽  
Sergey Ponomarev
Keyword(s):  
Physiological State ◽  
Aquatic Organisms ◽  
Anthropogenic Pollution ◽  
Fish Farming ◽  
The Body ◽  
Water Bodies ◽  
Physiological Control ◽  
Commercial Fish ◽  
Age Replacement ◽  
Sturgeon Fish

More recently, sturgeon fish were classified as a national treasure of our country, since among the world's reserves, Russia accounted for up to 90%. Nevertheless, over the past 10-15 years there has been a catastrophic decline in sturgeon stocks in almost all water bodies of the country. The main reason for the widespread landslide decline in stocks of sturgeon fish is the excess of the withdrawal over the recruitment of generations. In conditions of anthropogenic pollution of water bodies, the creation of sturgeon broodstock using industrial methods of rearing is a way to preserve the gene pool of these most valuable representatives of the world ichthyofauna and obtain seedlings for commercial fish farming. In connection with the use of industrial methods of fish rearing, the need for their physiological control increases. One of the sensitive methods that allows you to quickly and accurately establish the physiological state of fish, as well as assess the conditions for their cultivation, is the physiological-biochemical, hematological method, the leukocyte formula, since blood is a polyfunctional system of the body that dynamically responds to all changes, both internal and external. Wednesday. The aim of the study is to determine the boundaries of the reference values in terms of physiological, biochemical, hematological indicators, as well as the leukocyte formula in aquatic organisms of different-age replacement broodstock of sterlet and the quality of conditions for its cultivation in the conditions of the cage complex.

scholarly journals Some results of winter keeping of paddlefish young-of-the-year (Polyodon spathula (Walbaum, 1792)) in ponds of the Forest-Steppe and Polesye of Ukraine

2020 ◽  
pp. 59-67
Author(s):  
B. Hankevych ◽  
◽  
O. Tretiak ◽  
O. Kolos ◽  
◽  
...  
Keyword(s):  
Weight Loss ◽  
Body Weight ◽  
Environmental Conditions ◽  
Body Weight Loss ◽  
Fish Farming ◽  
The Body ◽  
Average Weight ◽  
Forest Steppe ◽  
Study Results ◽  
Young Of The Year

Purpose. Assessing the results of winter keeping of paddlefish young-of-the-year in ponds of the Forest-steppe and Polesye of Ukraine. Methodology. The study was carried out using 0.05-1.0 ha ponds intended for winter keeping of carps. The stocking density of paddlefish young-of-the-year with an average weight of 94.2-147.2 g in wintering ponds was 4.10-16.63 thousand fish/ha. The study of the physicochemical parameters of the aquatic environment was carried out according to the methods generally accepted in hydrochemistry and fish farming. The main piscicultural-biological parameters during the wintering period of fish were assessed using methods commonly used in ichthyology and fish farming according to the level of survival and body weight loss of paddlefish. Findings. The environmental conditions in the ponds during most of the wintering period of fish met the biological requirements of the studied object of cultivation. The water temperature varied within 0.9-6.50C. The dissolved oxygen content in water did not fall below 3.6-3.8 mgO2/dm3 and was mainly at the level of 3.9-7.9 3.9-7.2 mgO2/dm3. Other hydrochemical parameters were within acceptable values ​​for wintering fish in pond conditions. As a result, the survival rate of paddlefish young-of-the-year during the wintering period was 81.5-89.7%. The body weight loss of fish during the winter keeping was on average in the range of 6.41-8.17%. A conclusion was made on the need to conduct additional studies of physiological and biochemical parameters of paddlefish during the wintering period. Originality. New data were obtained on the peculiarities of wintering of paddlefish seeds in ponds of the Forest-steppe and Polesye of Ukraine. Practical value. The study results are part of the database for the development of improved technologies for sturgeon breeding in Ukraine. Key words: paddlefish, fish seeds, pond aquaculture, fish wintering, environmental conditions, piscicultural parameters.

scholarly journals Effect of Oral Administration with Lactobacillus plantarum CAM6 Strain on Sows during Gestation-Lactation and the Derived Impact on Their Progeny Performance

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
César Betancur ◽  
Yordan Martínez ◽  
Guillermo Tellez-Isaias ◽  
Rogel Castillo ◽  
Xinghua Ding
Keyword(s):  
Body Weight ◽  
Oral Administration ◽  
Lactobacillus Plantarum ◽  
Milk Fat ◽  
Biological Response ◽  
Basal Diet ◽  
The Body ◽  
Physiological Status ◽  
Mineral Salts ◽  
Study Results

Background. To evaluate the biological response of the sows and their offspring with oral administration of Lactobacillus plantarum CAM6 in breeding sows, a total of 20 Pietrain breeding sows with three farrowings and their descendants were used, randomly divided into two groups of 10 sows each. Treatments included a basal diet (T0) and basal diet +10 mL biological agent containing 109 CFU/mL L. plantarum CAM6 (T1). No antibiotics were used throughout the entire experimental process of this study. Results. The L. Plantarum CAM6 supplementation in sows’ feeding did not affect ( P > 0.05 ) the reproductive performance of the sows; however, the number of deaths for their offspring before weaning ( P ≤ 0.05 ) decreased. In addition, the oral administration of Lactobacillus plantarum CAM6 in sows increased ( P ≤ 0.05 ) the content of lactose, nonfat solids, mineral salts, and the density of sows’ milk, with a decrease in milk fat. Moreover, the probiotic feed orally to the sows improved the body weight ( P ≤ 0.05 ) and reduced the diarrhea incidence of their offspring ( P ≤ 0.05 ). Also, the probiotic administration of sows changed ( P ≤ 0.05 ) the serum concentration of Na+, pCO2, and D-β-hydroxybutyrate and increased ( P ≤ 0.05 ) the leukocytes, lymphocytes, and platelets in their piglets. Conclusion. Oral administration of Lactobacillus plantarum CAM6 in breeding sows improved body weight, physiological status, and the health of their offspring. And preparing the neonatal piglets physiologically is of great importance to the pig farming industry which could decrease the operational cost and medication (especially antibiotics) consumption of the pig producers.

scholarly journals Pengaruh Pakan terhadap Status Fisiologi Kambing Kacang (Capra aegragus hircus) dengan Pola Pemeliharaan Insentif di Daerah Lahan Kering

2021 ◽  
Vol 9 (1) ◽  
pp. 8-12
Author(s):  
Nancy Foeh ◽  
Frans Umbu Datta ◽  
Nemay Ndaong ◽  
Annytha Detha ◽  
Rocky Akal
Keyword(s):  
Body Weight ◽  
Body Temperature ◽  
Adult Female ◽  
Young Female ◽  
The Body ◽  
Feeding Pattern ◽  
Physiological Status ◽  
Normal Range ◽  
Field Laboratory

The aim of this research was to determine the ratio between the provision of Moringa to the physiological status (body temperature) of female goats. This research was conducted in the dryland field laboratory of the Nusa Cendana University, using 16 adult female goats, with a range of  6-7 months and body weight ranging from 10-12 kg. Goats were divided into 2 groups, namely groups using ammoniated grass and concentrate formulations combined with Moringa and without Moringa. The results showed that the body temperature of kacang goats that placed in individual cages with incentive maintenance patterns with cage adaptation for approximately 45 days, with a feeding pattern with no moringa concentrate and with moringa that given in the morning ranged from 38.8-39.0˚C and 38.7-39.2˚C. While in the afternoon, ranging from 38.7-39.2˚C and 38.7-39.0˚C. The conclusion is this body temperature was still in the normal range of body temperature for young female kacang goats.

scholarly journals ЗМІНИ БІЛКОВИХ ПОКАЗНИКІВ КРОВІ КОРОПА ЗА ВИКОРИСТАННЯ КОМПЛЕКСУ СИМБІОНТНИХ МІКРООРГАНІЗМІВ

2016 ◽  
Vol 18 (3(70)) ◽  
pp. 181-184
Author(s):  
T. Mazur ◽  
I. Garkusha
Keyword(s):  
Lactobacillus Acidophilus ◽  
Total Protein ◽  
Fish Farming ◽  
Antagonistic Effect ◽  
The Body ◽  
Blood Protein ◽  
Physiological Status ◽  
Blood Levels ◽  
Accurate Information ◽  
The Impact

In modern conditions the intensification of cultivation and fish farming industrial fish farming today is based on the principles of technological pipeline. One way of improving the technology of cultivation and breeding of fish and maintain normal physiological status is the use of probiotic microorganisms. Fruits included in their composition can produce different active substances disposed of harmful metabolic products provide an antagonistic effect on pathogens. It is known that the use of probiotics affect the cellular and biochemical composition of blood, including the performance level of protein in the blood. The purpose of these studies was to determine the impact of complex probiotic microorganism Bacillus subtillis and Lactobacillus acidophilus compared with the use of these monocultures of microorganisms on the blood protein fractions of common carp. Through monitoring of total protein in serum may receive the most accurate information about the immune status carp. It was found that the inclusion in the diet of carp probiotic complex consisting of Bacillus subtilis and Lactobacillus acidophilus vplyvayea more positive on blood levels of total protein and its fractions in the serum of carp than using the latest in a monoculture. Besides data indicate intensification of metabolic processes in the body of the fish. However, the increase in γ–globulins shows a positive effect probiotynoho complex on humoral immunity factor carp. 

scholarly journals Protein and Energy Requirements for Maintenance and Growth in Juvenile Meagre Argyrosomus regius (Asso, 1801) (Sciaenidae)

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 77
Author(s):  
I. Jauralde ◽  
J. Velazco-Vargas ◽  
A. Tomás-Vidal ◽  
M. Jover Cerdá ◽  
S. Martínez-Llorens
Keyword(s):  
Body Weight ◽  
High Growth ◽  
The Body ◽  
Energy Requirements ◽  
Maximum Efficiency ◽  
Feeding Rates ◽  
Voluntary Activity ◽  
Retention Efficiency ◽  
Digestible Energy ◽  
Argyrosomus Regius

The meagre is a carnivorous species and might be a suitable candidate species for the diversification of aquaculture in the Mediterranean region. This is based on its high growth and flesh quality. Nevertheless, there is little information available about its growth rates and nutrient requirements. The objective of this study was to determine the protein and energy requirements of juvenile meagre (Argyrosomus regius). Two trials for different weights of 53 and 188 g were conducted with rations from starvation to apparent satiation with the scope of studying its nutritional needs. In the first trial, the initial mean body weight of the fish was 53 g, and they were fed at feeding rates, measured as a percentage of the body weight, of 0, 0.75, 1.5, 2.5, 3.5, and 4.5%, with two replicates per treatment. In a second trial, another group with approximately 188 g of initial body weight was fed at feeding rates of 0, 0.5, 1.5, and 2.5%, with two replicates per treatment. The optimum thermal growth coefficient was obtained with a feed intake of 2.2% day−1 in trial A and 1.73% day−1 in trial B. The digestible protein (DP) intake for maintenance was determined as 0.57 g kg−0.7 day−1, the DP intake for maximum growth was 6.0 g kg−0.7 day−1, and the point for maximum efficiency in protein retention was 1.8 g kg−0.7 day−1. The requirement for digestible energy (DE) intake for maintenance was recorded at 25.4 kJ kg−0.82 day−1, the DE intake to maximize growth was 365 kJ kg−0.82 day−1, and the point for maximum efficiency in energy retention occurs with a digestible energy intake of 93 kJ kg−0.82 day−1. The requirements and retention efficiency of protein and energy in Argyrosomus regius tend to be within the range other fish species. The maintenance needs are in agreement with species with low voluntary activity and growth requirements in agreement with fast-growth species.

scholarly journals Influence of anthropogenic factors on the fauna of diplopods in the steppe zone of Ukraine

2021 ◽  
Vol 32 (1) ◽  
pp. 51-60
Author(s):  
V. M. Kozak
Keyword(s):  
Heavy Metals ◽  
Body Weight ◽  
Steppe Zone ◽  
The Body ◽  
Anthropogenic Factors ◽  
Natural Forests ◽  
Feeding Rates ◽  
Pirimiphos Methyl ◽  
High Concentrations ◽  
Taxonomic Groups

Various industries that constantly pollute the environment with their waste are quite well developed in the steppe zone of Ukraine. That in turn affects living organisms. The analysis of literature sources allowed to determine the factors influencing the diplopods fauna of the Steppe. Parasites, herbicides, fungicides, insecticides, heavy metals and other pollutants adversely affect invertebrates. Pesticides (glyphosate, imidacloprid, dimethoate, pirimiphos-methyl, propargite, cypermethrin, tebuconazole, chlorpyrifos, mefenoxam, mancozeb, sulfur, propiconazole, cyprodinil) are toxic to diplopods. They can affect lifetime, fertility, abundance, coordination of movements, feeding rates, change body weight and even in high concentrations cause the death of these animals. Sulfur, pirimiphos-methyl, propiconazole, imidacloprid, dimethoate and cypermethrin are the most toxic of all these pesticides. They cause the highest mortality. Heavy metals accumulate in the bodies of saprophages, reduce their abundance, affect body weight, cause a change in the intensity of eating food by diplopods. Nickel, lead, cadmium, zinc, cuprum and ferrum are toxic to millipedes. High concentrations of cadmium cause 100% mortality of Megaphyllum kievense (Lohmander, 1928). The development of urbanization causes a decrease in the abundance of saprophages. The species composition and number of individuals of some taxonomic groups of millipedes are reduced in reclamation areas. The nematodes Steinernema carpocapsae (Weiser, 1955) and Heterorhabditis heliothidis (Khan, Brooks & Hirschmann, 1976) slow down the protective reactions of the body of Oxidus gracilis (C. L. Koch, 1847). The high intensity of diplopod infection with gregarines slows down the feeding process of Rossiulus kessleri (Lohmander, 1927). Lighting, soil humidity and the number of ants also affect the abundance of diplopods in natural forests and forest plantations of the steppe zone. Thus the diplopods are influenced by many environmental factors that can reduce their abundance in agrocenoses, forested and reclamation areas of the steppe zone of Ukraine.

scholarly journals Dynamics of growing of Russian sturgeon (Acipenser gueldenstaedtii) larvae for different durations of cultivation

2020 ◽  
Vol 11 (3) ◽  
Author(s):  
V. O. Kornienko ◽  
V. V. Olifirenko
Keyword(s):  
Body Weight ◽  
Body Weight Gain ◽  
Physiological State ◽  
The Body ◽  
High Mass ◽  
Russian Sturgeon ◽  
Test Material ◽  
Growing Period ◽  
Acipenser Gueldenstaedtii ◽  
Fish Productivity

In the context of the need to preserve the biodiversity of natural waters, the cultivation of valuable fish species for stocking natural reservoirs takes on exceptional importance. Optimization of the technology for growing sturgeon in artificial conditions has become the main goal of our research. The population used for the present study is from a fish farm, Dneprovskiy Sturgeon Fish Breeding Factory located in Belozersky district (Kherson region, Ukraine). Studies were conducted for ten years (2007–2017). The objective of our study is to assess the quality of juvenile sturgeon when grown with different durations. The research material was provided by the free embryos and larvae of Russian sturgeon (Acipenser gueldenstaedtii von Brandt & Ratzeburg, 1833). Formation of experimental groups and calculation was performed on the principle of groups-analogues by standard methods. The main resultant criteria were larval survival, optimal extrinsic performance, and fish productivity. As a result of the conducted research it was determined that the optimal term of growing the larvae of A. gueldenstaedtii in the pools was 20 days. During this period, young sturgeon had high rates of average body weight with a survival rate of at least 53.4–60.2% and optimal physiological state. In variants with a maximum growth period of 24 days, the difference in the individual masses of the test material was significantly increased on the background of rather high mass indices of the larvae (1.2–1.4 and 1.9–2.1 times, respectively for II–III variant). This led to an increase in the pressure of food competition and, as a result, to a decrease in the output of young sturgeon growth of up to 46.5–61.9%. Survival of the larvae was by far the highest in the experimental groups with a minimum period of cultivation and ranged within 75.1–80.7%. The maximum level of fish productivity was observed in the third variant of the experiment with the longest period of cultivation. An analysis of the relative indicators of body weight gain revealed that with the extension of the growing period in experimental variants the percentage of realization of growth of larvae during the period of exogenous feeding was proportionally reduced. The most effective use of feed for the growth of body weight of the larva was in the variant with a growing period of 20 days. Feed costs in these groups ranged within 2.80–3.24, which averaged 2.83–3.02. Analysis of the dynamics of oscillations of the main biochemical indicators showed that the accumulation of consumables in the body of the experimental larvae increased with the growing period of cultivation in the pools. The amount of moisture was adequately reduced. The greatest influence on the results of the growth of sturgeon larvae in the pools among all the considered factors belonged to the period of cultivation, the magnitude of significance of which was 61.2%. The research results should significantly improve the technology of growing the Dnieper population of A. gueldenstaedtii on fish farms.

scholarly journals Growth Response of Clarias Gariepinus (North African Catfish) Under Varying Feeding Rates

2020 ◽  
pp. 113-117
Author(s):  
Ofonime Edet Afia ◽  
David Oristeseyi Kolawole ◽  
Gift Samuel David
Keyword(s):  
Body Weight ◽  
Growth Response ◽  
Feeding Rate ◽  
Clarias Gariepinus ◽  
Fish Farming ◽  
Quality Parameters ◽  
African Catfish ◽  
Feeding Rates ◽  
Feed Conversion ◽  
Commercial Feed

In fish farming, feeding rate is an important factor affecting the growth of fish, and thus determining the optimal feeding rate is important to the success of any aquaculture operation. This study which lasted for 99 days investigated the effect of varying feeding rates on the growth response of African catfish, Clarias gariepinus fingerlings. One hundred and eighty fingerlings were randomly distributed into nine experimental tanks giving 20 fingerlings per tank with an initial weight of 5.92±0.006 g. Three feeding rates were employed as treatments – 3%, 5%, and 7% of fresh body weight, with three replicates per treatment. The fishes were fed three times daily with commercial feed (Aller-aqua) of 42% crude protein. Growth and water quality parameters were measured fortnightly and feed ration adjusted according to the biomass in each tank. Results show that Final Mean Weight, Mean Weight Gain, Specific Growth Rate, Performance Index and Protein Efficiency Ratio were significantly higher (p<0.05) in fish fed 7%. However, Feed Conversion Ratio were better at 3% body weight (p<0.05). Based on the growth performance and feed efficiency data obtained, the study suggests the optimum feeding rate of 5% bw/day for African catfish, C. gariepinus fingerlings.

Research of fish breeding, biological and hematological parameters of paddlefish Polyodon spathula (Walbaum, 1792) females, matured in pond conditions in Astrakhan region

2021 ◽  
pp. 69-79
Author(s):  
Mahmud Abdulla Elnakib ◽  
Natalia Viktorovna Sudakova ◽  
Lydia Mikhailovna Vasilyeva ◽  
Galina Sharafudinovna Saketova
Keyword(s):  
Body Weight ◽  
Sexual Maturity ◽  
Hematological Parameters ◽  
Physiological State ◽  
The Body ◽  
Total Serum Protein ◽  
Total Serum ◽  
Published Data ◽  
Natural Conditions ◽  
Fish Breeding

The fish-breeding, biological and hematological parameters of paddlefish females matured in the pond conditions of the scientific and experimental aquaculture complex “BIOS” were investigated. The studies were carried out during the period of obtaining mature oocytes for fish breeding purposes. The reproductive function of female paddlefish was judged by the following parameters: body weight and timing of reaching sexual maturity, spawning intervals, egg yield, absolute and relative fecundity, percentage of fertilization and embryo development, and prelarvae yield. The physiological state of females was assessed according to the following parameters: white blood cell (WBC) count, hemoglobin concentration (Hb), total serum protein (TSP). The results obtained were compared with published data on female paddlefish in natural habitat and on females acclimatized in another region. Materials were obtained on paddlefish females, once and repeatedly ripened in the pond conditions of the Astrakhan region. Some data were obtained for the first time, but not in sufficient volume to draw generalizing conclusions. The investigated broodstock of the paddlefish NECA “BIOS” is very heterogeneous, there are females that reached sexual maturity at the age of 9–14 years, but some individuals matured at 20–23 years old, which is very late for paddlefish. The eggs yield was low and averaged 12.2% of the body weight of females, while in natural conditions it reaches 20% and more. It was not possible to carry out a comparative analysis of the obtained results of hematological studies, since there are very few published data on the physiological state of paddlefish breeders both in natural conditions and acclimatized in the European territory. The results obtained can be used in work with paddlefish producers in artificial conditions, as well as a basis for further studies of paddlefish hematological parameters in aquaculture.

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