scholarly journals Features of fish breeding in water with electrochemical redox potential

2021 ◽  
Vol 273 ◽  
pp. 03003
Author(s):  
Anna Bakhareva ◽  
Yulia Grozesku ◽  
Adelya Zhandalgarova ◽  
Yulia Sergeeva ◽  
Alexey Mazlov

One of the most significant factors in regulating the parameters of redox reactions occurring in any liquid medium is the electron activity or redox potential (RP) of this medium. Water that has a negative RP is easily absorbed by the body and replenishes the cells with lost negative charges and energy. As a result of the conducted studies, it was found that the hydrochemical parameters in the experimental and control variants were within the standard values for growing tilapia juveniles. It was found that the redox potential of the blood of juvenile tilapia has a negative value of - 96 mV. It is recorded that at a sufficiently low water temperature for thermophilic tilapia (21 °C) and at a negative RP (-212 mV), a high growth rate of fish is observed. It was found that the use of water with a redox potential of -100 mV is the most effective, since the linear weight gain of juveniles increases by 41 % in comparison with the control. Tilapia juveniles grown in structured water have the highest levels of hemoglobin (62-64 g/l) and total serum protein (13.3-14.3 g/l).

Author(s):  
Anna Aleksandrovna Bakhareva ◽  
Yulia Nikolaevna Grozesku ◽  
Adelya Dzumaniyashevna Zhandalgarova ◽  
Leonid Matveevich Slavin ◽  
Aleksandr Nevalennyy

The paper outlines the problems of fish rearing in the water with negative redox potential. Water is known to consist of supermolecules, the so-called clusters and cells, connected by a special molecular structure. This structure changes when exposed to water in different ways: chemical, electromagnetic, mechanical. Under these influences the water molecules rearrange forming the structured living water. The effectiveness of activated water is explained by the fact that in the process of electrolysis the dead water acquires a positive electric potential, and living water – a negative electrical potential. It becomes a weak electrolyte which quickly interacts with body fluids (gastric juice, blood, lymph, intercellular fluid, etc.). As a result of the studies carried out on juvenile tilapia, it has been found that the hydrochemical parameters in the experimental (growing in structured water) and control variants were within the standard values. Concentration of O2 made 7 mg/l, pH of the medium was 7.2, and nitrite concentration was 0.3 mg/l. It has been inferred that the redox potential (redox) of the blood of young tilapia has a negative value (–96 mV). It has been recorded that at a water temperature of 21°C that is sufficiently low for thermophilic tilapia and at a negative redox (–212 mV) there has been observed a high growth rate of fish. It was found that the use of redox water (–100 mV) is most effective, because the linear-weight gain of juveniles increases by 41% in comparison with the control. Negatively charged (cathode) water increases the efficiency of rearing tilapia fry and does not affect the physiological state of fish. Tilapia fry reared in the structured water have the highest hemoglobin content (62-64 g/l) and total protein (13.3-14.3 g/l).


2022 ◽  
Vol 354 (11-12) ◽  
pp. 20-23
Author(s):  
S. V. Dezhatkina ◽  
N. A. Feoktistova ◽  
E. V. Pankratova ◽  
N. A. Provorova ◽  
E. S. Salmina

Relevance. Modern turkey crosses have a genetically determined high growth rate. These farm birds are very sensitive to even minor fluctuations in their diet, are susceptible to a deficiency of amino acids, protein, mineral elements and vitamins, which can contribute to a decrease in their productivity, the development of pathological processes and diseases. The use of modern technologies and scientific achievements has made it possible to prepare a new product — modified zeolite. This natural mineral is already free of impurities and microbes, with open pore windows, has a high ability to selectively exchange, and is obtained by various methods of activating zeolite in industrial conditions. At the same time, Ulyanovsk specialists have mastered the technology of enriching modified zeolite with useful substances.Methods. The aim of the work was to study the effect on the body of turkeys and the level of their productivity of additives based on modified zeolite enriched with amino acids. The experiment was organized for 60 days on 250 turkeys of the breed Hybrid Cread-mayker aged 55–60 days in the conditions of the Ulyanovsk region. The control group received the main ration (MR), the experimental group was given once a day in addition to the MR in the morning feeding in a mixture with mixed feed 5% additives of modified zeolite enriched with amino acids.Results. The inclusion of a supplement based on modified zeolite enriched with amino acids in the diet of turkeys does not have a negative effect on the hematological parameters of their blood, all indicators corresponded to the physiological norm. During the experiment in the 2nd group, the live weight of poultry was obtained larger by 8.70%, which amounted to 12,296 kg, respectively, more profit was obtained from the sale of turkey meat, total revenue was 133,210, and additional profit was 27,960 rubles, 2.41 rubles of profit was received for 1 ruble of costs. Тhe data indicate the normalization of mineral homeostasis in the body of turkeys and better absorption of nutrients in the feed diet.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 302-302
Author(s):  
Irina Lunegova

Abstract For the harmonious development, intensive growth and preservation of young animals in the diet it is necessary to include various feed additives, complexes, adaptogens that enhance the metabolic processes in the body. The purpose of the study is to study the feasibility and effectiveness of the use of adaptogen in calves rations. To achieve this goal in industrial conditions, 30 calves of Holstein breed at the age of 5–7 days were selected and divided into two groups of 15 animals each. The duration of the experiment was 90 days. Calves of the experimental group in milk, and then in concentrates included adaptogen “Energy” in the amount of 250 mg / kg body weight. The control animals were fed according to the standard scheme in the farm. The feeding mode for all calves was in accordance with the growing technology. The adaptogen includes: succinic, citric acid, inulin, oligofructose, methionine, lactic acid bacteria immobilized on aluminosilicate (patent RU 2493725). The results of the experiment (table 1) showed that the inclusion of an adaptogen provided a high growth rate throughout the entire period. At the end of the experiment, the body weight of calves of the experimental group was 6.52% (P > 0.05) higher compared to the control.


Author(s):  
Showkat A. Bhat ◽  
Bharat Bhushan ◽  
Narendra Kumar ◽  
S. A. Lone ◽  
Pranay Bharti ◽  
...  

The main aim of this study was to determine the role of Infrared lamps in cold stress alleviation during winter in Murrah calves. Ten newborn calves were randomly divided into two groups (G1 and G2) of five each. The calves of G1 were provided with no additional protection; however calves of G2 were protected against cold weather by using Infrared lamps. The body weight (kg) of calves was recorded at weekly interval. The blood samples collected at fortnightly interval were analyzed for Packed Cell volume (PCV, %), hemoglobin (Hb, g/dl), Total Serum Protein (TSP, g/l), albumin (g/l), globulin (g/l) and albumin globulin (A:G) ratio and hormones viz., triiodothyronine (T3, ng/ml), thyroxine (T4, ng/ml) and cortisol (ng/ml). The total body weight gain and average daily gain (ADG) was significantly (P<0.01) higher in G2 as compared to G1. The PCV values were significantly (P<0.05) higher on day 15 and day 45 in G1 than G2. The albumin and A:G Ratio were significantly (P<0.05) higher on day 60 and 45, respectively in G1 than G2. The cortisol levels were higher in G1 than G2 and differences were highly significant (P<0.01) on 15th day and significant (P<0.05) on 45th day. Significantly (P<0.01) higher values of T3 and T4 were observed on 15th and 45th day in G1 as compared to G2. On the basis of the results, it may be concluded that Infrared lamps can be effectively used to protect newborn calves from adverse conditions of winter and to improve their body growth performance.


2005 ◽  
Vol 29 (2) ◽  
pp. 1-11
Author(s):  
Atheer Kassab

The study was conducted to investigate the role of supplementing the diet ofbroiler chicken with Black seed (Nigella sativa Linn) broiler chicken in theimmune response of the bird .The study has also investigated the level of someserum proteins and the activity of amino group transmitting enzymes. The Blackseeds have been ground and supplemented in the diet of the chickens at 2%inclusion rate .A total of 80 Faobro broiler chicks were divided equally into 4groups.Group 1: given Black seed supplemented diet and vaccinated at 8 ,16 and 26 daysof age with one dose of live Newcastle (ND) vaccine in the crop and injected 0.2ml oil adjuvant ND vaccine subcutaneously.Group 2: given Black seed supplemented diet and vaccinated at 8 ,16 and 26 daysof age with one dose of live Newcastle (ND) vaccine in the crop but did notinjected with oil adjuvant ND vaccine.Group 3: A control to group 1, but not supplemented with Black seed in the diet.Group 4: A control to group 2, but not supplemented with Black seed in the diet.Results showed that the supplementation of Black seed with the diet causedsignificant increase in the total serum protein, the serum globuline, the NDantibody examined by Haemagglutination test and the body weight. Thedifferences were more obvious when the birds were vaccinated with oil adjuvantvaccine .The enzyme Aspartate aminotransferase (AST) and Alanineaminotransferase(ALT) have not been affected by the inclusion of 2% Black seedin the diet. It was concluded that the inclusion of 2% Black seed in the diet hasled to a better immune response and health conditions shown by the birds.


Author(s):  
I.F. GORLOV ◽  
A.V. RANDELIN ◽  
M.I. SLOSHENKINA ◽  
A.A. MOSOLOV ◽  
D.A. RANDELIN ◽  
...  

Приведены результаты изучения роста, мясной продуктивности и качества говядины, полученной от молодняка русской комолой (I группа), казахской белоголовой (II группа) и калмыцкой (III группа) пород. Установлено, что при постановке на опытв 8-месячном возрасте животные II подопытной группы превосходили по живой массе сверстников I и III групп, соответственно, на 4,1 кг и 23,9 кг, в 17 мес — на 16,2 кг и 49,8 кг.Бычки I группы превосходили по живой массе сверстников III группы в возрасте 8 мес на 19,8 кг, в 17 мес— на 33,6 кг. По результатам контрольного убоя бычки казахской белоголовой породы превосходили сверстников I и III групп по массе туш на 6,88 кг, или 2,7% (Р<0,05) и 35,81 кг, или 14,0% (Р<0,001). Убойный выход был более высоким у животных русской комолой породы (I группа). Их превосходство по этому показателю над сверстниками II и III групп составило1,07 и 2,29%. На основании результатов обвалки установлено, что выход мякоти в тушах бычков I группы был выше, чем у сверстников II и III групп — на 0,77 и 2,00%. Индекс мясности у бычков I группы в сравнении со сверстниками был выше на 0,24 и 0,70. Выход мякоти в тушах на 100 кг живой массы у бычков I группы был также превышал данный показатель у сверстников на 1,09 кг, или 2,44% и на 2,52 кг, или 5,83%. Наиболее ценных отрубов было получено больше от бычков I группы (русская комолая) по сравнению со сверстниками II и III групп. Установлена положительная корреляционная связь между живой массой бычков в начале и конце откорма с общим белком в сыворотке крови — в I группе 0,54—0,64, во II — 0,50—0,67, в III группе — 0,67—0,69; убойной массой и общим белком в сыворотке крови — в I группе она составила 0,47—0,50, во II — 0,49—0,51, в III группе — 0,51—0,53.The results of the study of growth, meat productivity and quality of beef obtained from young stock by Russian comola (I group), Kazakh white-headed (II group) and Kalmyk (III group) breeds are presented. It was established that when setting up the experiment at 8 months of age animals II experimental groups surpassed live weight of their peers I and III groups, respectively, by 4.1 kg and 23.9 kg, at 17 months - by 16.2 kg and 49.8 kg. Gobies of group I exceeded in live weight of their peers of group III at the age of 8 months by 19.8 kg, at 17 months - by 33.6 kg. According to the results of the control slaughter, Kazakh white-headed breed bullies exceeded their peers of groups I and III by carcass weight by 6.88 kg, or 2.7% (P <0.05) and 35.81 kg, or 14.0% (P <0.001). Slaughter yield was higher in animals of the Russian comola breed (I group). Their superiority over this indicator over their peers of groups II and III was 1.07 and 2.29%. Based on the results of deboning, it was found that the pulp yield in bull carcasses of group I was higher than that of peers of groups II and III — by 0.77 and 2.00%. The index of meatiness in bulls of group I in comparison with peers was higher by 0.24 and 0.70. The yield of pulp in carcasses per 100 kg of live weight in the first group of bulls I was also higher than that of their peers by 1.09 kg, or 2.44% and 2.52 kg, or 5.83%. The yield of the most valuable cuts was higher in bulls of Group I (Russian comola) compared with peers of Groups II and III. In the process of research, a positive correlation was established between the body weight of animals at the beginning and end of fattening with the total protein in the blood serum in group I; it was 0.54—0.64; in II — 0.50—0.67; in group III — 0.67—0.69, between the slaughter mass with total serum protein in group I it was 0.47—0.50; in II — 0.49—0.51; in group III — 0.51—0.53.


2005 ◽  
Vol 37 ◽  
pp. 9-20 ◽  
Author(s):  
H. Bytyqi ◽  
G. Klemetsdal ◽  
J. Ødegård ◽  
H. Mehmeti ◽  
M. Vegara

SummaryAfter the war in Kosovo, the Food and Agriculture Organization and the World Bank implemented an Emergency Farm Restocking Project, by allocating Simmental, Brown Swiss and Tyrol Grey heifers, 4–7 months pregnant, to farmers at the rate of one per farm. Data was monitored over a period of 14–16 months and the results showed that Brown Swiss had the highest milk production, while Tyrol Grey did worst. However, Tyrol Grey had the shortest service period and also changed the body condition score postpartum less than the other two breeds, making it best fitted of the three, to the extensive environment in Kosovo. Breeds were compared by growth rate, but this comparison was deemed highly inadequate as breeds with a high growth rate normally reach maturity at a high weight, and so need intensive feeding. Considering the extensive production environment in Kosovo, our results suggest that dairy cattle production should be based on a smaller breed, well adapted to the diet offered


Author(s):  
Mahmud Abdulla Elnakib ◽  
Natalia Viktorovna Sudakova ◽  
Lydia Mikhailovna Vasilyeva ◽  
Galina Sharafudinovna Saketova

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.


Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3209
Author(s):  
Qiu-Di Zheng ◽  
Francisco A. Leal Yepes

We studied the effect on average daily gain (ADG) and health of an additional colostrum feeding to Holstein dairy heifers 12–16 h after the first colostrum feeding, provided within 2 h of birth. Calves (n = 190) with an average birth weight of 38.8 kg (29.5–52.6 kg) were randomly enrolled in blocks to either the control (CON) or colostrum (COL). The CON received 3 L of acidified pasteurized whole milk, and the COL received 3 L of pasteurized colostrum [average: 25.5 (24.7–26.4)% Brix]. Calves were group-housed, weighed, withers height measured weekly. Serum was obtained and analyzed with a% Brix refractometer. Mixed linear models were used to assess the differences in ADG, body weight, and height between the treatment and control. There was no difference in ADG between the COL and CON. However, serum % Brix was higher in the COL group (9.7%) than in the CON group (9.2%). Calves in the COL had more antibiotic treatments for respiratory diseases but fewer antibiotic treatments for otitis than the CON. In conclusion, providing an extra feeding of colostrum did not contribute to ADG of Holstein heifers during the pre-weaning period but did provide them with a higher total serum protein concentration.


2021 ◽  
Vol 273 ◽  
pp. 03006
Author(s):  
Elena Pishchenko ◽  
Irina Moruzi ◽  
Liudmila Zakonova ◽  
Liubov Vesnina ◽  
Dmitrii Kropachev

Selection of carp was started in 1964 in Siberia. The work was carried out in a continental climate. The duration of the winter period was 120-130 days. The species was created by the method of mass directed selection in terms of body growth, girth and fecundity. In comparison with the original population, the body weight of females in the average school increased significantly - by 67.17%, and the weight of female five-year-olds - by 33.58%. This led to earlier maturation and accelerated the generational change. Considering the dynamic series of the exterior of the females according to the indices of progonism, broad-back, body girth, as well as exterior profiles, we noted that the population of the Altai mirror carp had a high growth rate, which ensured high fish productivity of reservoirs. Analysis of the variability of morphological traits from the third to the seventh generation showed that against the background of a noticeable increase in body weight, body length decreased, girth, growth and thickness increased. The body of the Altai mirror carp for five generations of breeding has become more compact, the exterior has improved.


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