scholarly journals The results of cultivation and changes in fish and biological indicators of this year carp when using feed additives NuPro® та Bio-Mos

Author(s):  
Yu. R. Vachko ◽  
Ye. O. Barylo ◽  
K. I. Chmyr

The intensification and development potential of the aquaculture sector has created challenges in finding alternative sources of protein for use in fish feed diets to develop feeds that provide adequate nutrition for fish growth while reducing the use of traditional protein sources. Therefore, the paper aimed to study the feasibility and effectiveness of feed additives “Bio-Mos” and “NuPro®” when implementing them into the diet of this year's carp (Сyprinus carpio). Researches were carried out in the conditions of the fishery “Rudnyky” of the Mykolaiv district of the Lviv region. The object of the study was this year's carp (Cyprinus carpio L.), which were grown in monoculture with artificial feed. In our research, it was found that the maximum average monthly temperature of the water supply source is set in August – +25.6 °С. The oxygen concentration was in the range of 6.5–7.3 mg/dm3. The highest values of permanganate oxidation were found in August – 12.8 g O2/m3, NO2 content increased slightly in July (0.052 mgN/l) and August (0.071 mgN/l) the number of nitrates increased slightly in August and September at 0.360 mgN/l and 0.281 mgN/l. The concentration of NH4+ was at the level of minimum values – 0.151–0.331 mg N/dm3. The phosphate content (PO4-3) fluctuated slightly in the range of 0.11–0.18 mg P/dm3. As a result of research, it was found that when the drug “NuPro” was included in the diet, the average individual weight of this year's carp was higher during the caught period by 24.3 %, and when using the additive “Bio-Mos” this figure exceeded the control by 28.6 %. Accordingly, the total mass of caught young carp from the second experimental pond exceeded this figure in the first control pond by 45.0 %, and in the third experimental pond, respectively – by 57.4 %. At the same time, “NuPro” та “Bio-Mos” increase the survival of young people from 9.3 % to 16.7 %. Therefore, when using feed additives “NuPro” and “Bio-Mos” in the amount of 2 % by weight of feed has a positive effect on the productivity of this year`s carp (Cyprinus carpio L.), which are grown in the III zone of fish farming.

Author(s):  
Z. Bolatbekova ◽  
S. Assylbekova ◽  
B. Kulatayev ◽  
S. Koishybayeva ◽  
N. Bulavina

The aryicle presents the results of a comparative study of the biochemical composition of earthworms of dendrobene and prospector rocks, the peculiarities of their cultivation and their use for feeding when growing juvenile tilapia and clary catfish. The experience of cultivating earthworms of two breeds using the improved methods of foreign authors is described. The results of a study of the biochemical composition of cultivated objects that determine their nutritional value for feeding fish are presented. The fish-breeding and biological indicators of juvenile tilapia and clary catfish, obtained during the cultivation of dendrobene and prospector in fish farming in the Almaty region (VI fish-breeding zone) during worm feeding, are analyzed. A comprehensive analysis of the studied indicators made it possible to assign a certain rating place to each worm breed in relation to its use as fish feed.


2001 ◽  
Vol 46 (14) ◽  
pp. a1-a4 ◽  
Author(s):  
Yaping Wang ◽  
Wei Hu ◽  
Gang Wu ◽  
Yonghua Sun ◽  
Shangping Chen ◽  
...  

2019 ◽  
Vol 7 (2) ◽  
pp. 365
Author(s):  
Julio David ◽  
Sartje Lantu ◽  
Henneke Pangkey ◽  
Lawrence J.L. Lumingas ◽  
Jeffrie F. Mokolensang ◽  
...  

This study aims to examine the fish silage for total gain weight, growth rate, and the specific growth rate of common carp (Cyprinus carpio L.), which is cultivated in 12 nets (1x0,5x1m), with the density of 10 fish (3-5 cm) on each net. The experimental design used was a completely randomized design (CRD) with 4 treatments and 3 replications; treatment A with 10% fish silage, treatment B with fish silage 20%, treatment C with 30% fish silage and treatment D were commercial pellet. The ANOVA test showed that the treatment effect among feed A, B, C, and D tested did not give a significant difference to total gain weight, growth rate and the specific growth of carp fry.Keyword: common carp, fish silage, fish feed, growth ABSTRAKPenelitian ini bertujuan untuk menelaah pemberian silase ikan bagi pertumbuhan mutlak, pertumbuhan nisbi, dan pertumbuhan harian ikan mas (Cyprinus carpio L.), yang dipelihara dalam petak-petak jaring berukuran 1x 0,5 x 1 m, dengan padat penebaran 10 ekor ikan berukuran  3-5 cm. Rancangan percobaan yang digunakan adalah rancangan acak lengkap (RAL) dengan 4 perlakuan dan 3 ulangan; perlakuan A pelet berkomposisi silase ikan 10%, perlakuan B pelet berkomposisi silase ikan 20 %, perlakuan C pelet berkomposisi silase ikan 30 % dan perlakuan D adalah pelet komersil. Uji ANOVA menunjukkan bahwa pengaruh perlakuan di antara pakan A, B, C, dan D yang diujicobakan tidak memberikan perbedaan yang nyata terhadap pertumbuhan mutlak, pertumbuhan nisbi dan pertumbuhan harian benih ikan mas.Kata kunci : ikan mas, silase ikan, pakan ikan, pertumbuhan


Telematika ◽  
2019 ◽  
Vol 16 (2) ◽  
pp. 73
Author(s):  
Mangaras Yanu Florestiyanto ◽  
Dessyanto Boedi Prasetyo ◽  
Moh. Hafidz Randy Handigar

AbstractIn fish farming activities there are a number of important things that must be considered, namely feeding and controlling the quality of the water in the pond such as water temperature, pH level and water clarity, because these elements are important for fish growth and life. Adjusting the time to feed the fish is also very important so that the fish can stay alive, if it is too late to feed the fish the fish can be stressed and eventually starve to death. Fish owners who have a fairly busy level of activity, will feel a little difficulty when leaving the house in a long time, because meeting the needs of fish and continuous monitoring is very time consuming. Thus, an automatic fish feeding device was developed which can be adjusted when feeding and measuring the feeding. In this study, Arduino Uno and Arduino Mega 2560 are the "brains" that control inputs, processes and outputs. Servo motor as a cover drive where fish feed is released. Water temperature sensors, pH sensors and water clarity sensors or TDS to monitor the state of the water. The output generated from the auto fish feeder has issued the feed in accordance with the set hours when testing, only the size of the feed will affect the amount of feed that comes out, as well as testing the temperature sensor, pH, and water clarity working properly.Keywords : Arduino, microcontroller, fish feeder, sensorDalam Kegiatan budidaya ikan ada beberapa hal penting yang harus diperhatikan yaitu pemberian pakan dan pengontrolan terhadap kualitas air yang ada dikolam seperti suhu air, kadar pH dan kejernihan air, karena unsur-tersebut penting bagi pertumbuhan dan kehidupan ikan. Penyesuaian waktu memberi makan ikan juga sangat penting agar ikan dapat tetap hidup, jika terlambat dalam memberi makan ikan maka ikan bisa stress dan akhirnya mati kelaparan. Pemilik ikan yang memiliki tingkat kesibukan yang cukup padat, akan merasakan sedikit kesulitan ketika akan meninggalkan rumah dalam waktu yang cukup lama, karena pemenuhan kebutuhan ikan dan pemantauan terus menerus sangat memakan waktu. Dengan demikian maka dikembangkanlah sebuah alat pemberi makan ikan otomatis yang dapat diatur waktu pemberian pakannya dan takaran pemberian pakannya. Pada penelitian ini menggunakan Arduino Uno dan Arduino Mega 2560 sebagai “otak” yang mengendalikan input, proses dan output. Motor servo sebagai penggerak penutup tempat keluarnya pakan ikan. Sensor suhu air, sensor pH dan sensor kejernihan air atau TDS untuk memantau keadaan air. Output yang dihasilkan dari auto fish feeder sudah mengeluarkan pakan sesuai dengan pengaturan jam yang sudah diatur ketika pengujian, hanya ukuran pakan akan mempengaruhi jumlah takaran pakan yang keluar, serta pengujian sensor suhu, pH, dan kejernihan air bekerja dengan baik.Kata Kunci : Arduino, mikrokontroller, fish feeder, sensor 


2021 ◽  
Vol 12 (4) ◽  
Author(s):  
N. V. Polishchuk ◽  
B. Yu. Kovalenko ◽  
N. I. Vovk ◽  
I. S. Kononenko ◽  
V. O. Kovalenko

The article presents the results of an experiment to assess the effect of feed additive of humates on the growth rate and survival of different age groups of sterlet (Acipenser ruthenus L., 1758) and the conversion of fish feed for keeping in aquaculture. Based on the analysis of sources of scientific and technical information, it was found that humic drugs have long been used in crop production as growth stimulants and microfertilizers, and in animal husbandry - to normalize metabolism, treatment of digestive diseases and general stimulating effect on the body as a whole. Analysis of data on the use of humates in aquaculture indicated the presence of a positive effect of these compounds on individual cultivation objects. The small amount of information on the use of humates in fish farming has led to the conclusion that this direction of fish farming intensification is still insufficiently studied, and that studies of the impact of humic substances on aquaculture objects are not comprehensive and mainly concern the assessment of individual effects of biologically active action of the compounds on fish. The available information gave grounds to speculate about the prospects for the use of humates in sturgeon farming. To test this assumption, a series of experiments was conducted on the feeding of sterlet feed with the addition of sodium humate. The research was conducted in 2018, 2020 and 2021, in the production conditions of the cage fishery, located on the Kaniv Reservoir. The effect of different concentrations of sodium humate feed additives on one- and two year old sterlet was evaluated. It was found that the addition of sodium humate to fish feed in concentrations of 60, 100, 120 and 200 mg / kg of feed did not significantly affect the growth rate of sterlet. Thus, the advantage of experimental variants over the control for this indicator was insignificant, in the range of 1.0-1.6%. The effect of sodium humate on the survival of this year sterlet, for their cultivation in gardens. At the same time, the best, by 6.7-17.4%, feed conversion with the addition of humates by one- and two-year-old sterlet was noted. According to the results of the experiments, the best result was obtained in the variant using a feed additive of humates at a concentration of 200 mg / kg of feed. It is considered promising to continue the study of the impact of feed additives of humates on the growth and survival of valuable aquaculture objects under different housing conditions, in particular in closed recirculation aquasystems (RAS), as well as finding the optimal concentration of these additives in feed for different species and age groups of fish.


Aquaculture ◽  
2008 ◽  
Vol 284 (1-4) ◽  
pp. 217-223 ◽  
Author(s):  
Bo Guan ◽  
Wei Hu ◽  
Tanglin Zhang ◽  
Yaping Wang ◽  
Zuoyan Zhu

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