scholarly journals Eggshell strength

2004 ◽  
Vol 20 (3-4) ◽  
pp. 107-111 ◽  
Author(s):  
Dusko Vitorovic ◽  
Zlatica Pavlovski ◽  
Zdenka Skrbic ◽  
Milos Lukic ◽  
Ivana Adamovic
Keyword(s):  
Particle Size ◽  
Shell Thickness ◽  
Control Group ◽  
Breaking Force ◽  
Additional Source ◽  
Basic Diet ◽  
Eggshell Quality ◽  
Experimental Group ◽  
Strength Improvement

Eggshell quality was studied in two groups of Shaver hens (300 hens per group) 30 weeks of age. All hens received a basic diet of the same composition with pulverized limestone as a source of calcium. The experimental group received 2 g of granular limestone (particle size 1.1-1.4 mm) per hen per day during one week, adding on the concentrate in the afternoon. Significantly lower deformation (19 m), higher breaking force (4,1 kg) and shell thickness (39, 3 x 0.01 mm) were registered for eggs of experimental group of hens than for eggs of control group (24 m; 3.3 kg 36.5 x 0.01 mm, respectively). The results obtained in our investigation showed possibilities of eggshell strength improvement using 2 g of larger particle size of limestone as additional source of calcium.

Reproductive traits and blood biochemical parameters of sows when using a vitamin feed additive “LipoCar”

2020 ◽  
pp. 25-31
Author(s):  
I. A. Pushkaryev ◽  
N. M. Kostomakhin ◽  
S. V. Burtseva ◽  
N. A. Novikov
Keyword(s):  
Blood Serum ◽  
Biochemical Parameters ◽  
Total Duration ◽  
Reproductive Traits ◽  
Feed Additive ◽  
Control Group ◽  
Large White ◽  
Basic Diet ◽  
Blood Biochemical ◽  
Experimental Group

The reproductive traits of sows are of paramount importance in the production of high-quality pork. The world experience of pig farming shows the need to solve first of all the feed problem. Diets unbalanced in the content of vitamins restrain the manifestation of genetically inherent high prolificacy of sows. The purpose of the research was to study the influence of feeding the vitamin feed additive “LipoCar” on the reproductive traits of sows and the biochemical parameters of blood serum. The results of research on the introduction of vitamin feed additive “LipoCar” into the diet of pregnant sows have been presented in the article. The experiment has been carried out in the production conditions in JSC “Linevsky pedigree farm” on sows of Large White breed. Pregnant sows have received a basic diet, balanced for all the normalized elements of nutrition. Sows of the experimental group in the composition of the basic diet fed the feed additive “LipoCar”. The dosage of the drug “Lipocar” was 2,1 g/head/day. “Lipocar” has been fed for 20 days. The total duration of the experiment was 3 months. When introducing the vitamin feed additive “LipoCar” into the main diet of sows in the second half of pregnancy the increase in the number of piglets in the litter by 1,6-6,8 % and the weight of the litter – by 5,6-56,2 % (P ≤ 0,001) have been revealed in comparison with the control group of animals. There was a higher content of carotene in the blood serum of sows of the experimental group by 50,0 % (P ≤ 0,01), vitamin A - by 48,7 % (P ≤ 0,05), and total protein – by 4,9 % (P ≤ 0,05).

scholarly journals PHYSIOLOGICAL STATUS AND PRODUCTIVITY OF TURKEY-BROILERS WHEN USE FEED SUPPLEMENTS IN THEIR RATIONS

2017 ◽  
pp. 5-9
Author(s):  
Айметов ◽  
Ruslan Aymetov
Keyword(s):  
Test Group ◽  
Mineral Elements ◽  
The Body ◽  
Control Group ◽  
Physiological Status ◽  
Maximum Output ◽  
Mineral Supplement ◽  
Basic Diet ◽  
The Republic ◽  
Experimental Group

The mineral elements interact not only among themselves, but also with the organic components during complex metabolism process. Identifying the features of the feed nutrient substances relationship allows you to direct the body’s metabolism in the direction of their effectiveness and to obtain the maximum output from the animals. The experimental part of the work was carried out on poultry complex “Agrofirma Zalesnyy” of the Republic of Tatarstan from January to May 2016. The objects of research were female turkey-broilers of “Hybrid Converter” cross, mineral supplement “Tseostimul”, probiotic “Provagen” and symbiotic preparation of a new generation. With this aim, four groups of turkey were formed of 40 heads. The first group was a control one and received a basic diet, adopted by the poultry farm. The second group received the basic diet, added with mineral supplements with a dosage of 30 gramm per 1 kilogramm of feed. Turkeys of III-experimental group was added to the diet of probiotic preparation “Provagen” at a dose of 3 gramm per 1 kilogramm of feed. The turkeys of IV-test group received in addition to the basic diet a symbiotic drug rate of 20 gramm per 1 kilogramm of feed. The main diet was consisted of complete feed. Duration of the experiment was 112 days. By the end of the experiment the body weight of experimental groups exceeded the similar index: in the control group to 1082 gramm (р ≥0,001), in the first test group to 781 gramm (р ≥0,001), in the second test group to 1339 gramm (р ≥0,001), in the third group with addition of symbiotic drugs or to 12.3%, 8.9% and 15.3% respectively. The numbers of leukocytes was decreased from 34.2 109/L to 33.3 109/L in I experimental group, to 33.2 109/L in II and to 34.4 109/L in IV experimental group. The mass of internal organs was significantly higher in females of experimental groups. Thus, the weight of the liver of experimental groups was greater to 12.3%, 8.9% and 15.3%, compared with the control group.

scholarly journals Aggregation of Nanochemical Microcrystals in Urine Promotes the Formation of Urinary Calculi

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Yanting Lou ◽  
Wei He ◽  
Zhengyao Song
Keyword(s):  
Particle Size ◽  
Pore Size ◽  
Average Particle Size ◽  
Colorimetric Method ◽  
Urinary Calculi ◽  
Control Group ◽  
Average Particle ◽  
Public Attention ◽  
Flame Atomic Absorption ◽  
Experimental Group

With the increasing incidence and recurrence rate of urinary calculi, urinary calculi have become a serious health risk, and the research on urinary calculi has become the focus of public attention. At present, the research results on the formation mechanism of urinary calculi are not ideal, and there is no unified conclusion. In order to further study the influencing factors of the formation of urinary calculi and provide new ideas for the prevention and clinical treatment of urinary calculi, the influence of agglomeration of nanochemical microcrystals in urine on urinary calculi was studied in this paper. In this study, fresh morning urine was collected from 10 urological stone patients and 10 healthy controls without urological stone in the urology department of a hospital. After processing the experimental specimens, we first use flame atomic absorption spectrometry and alcian blue colorimetric method to detect the content of Ca2+ and citrate in the urine and then use the nanoparticle size analyzer to detect the microcrystals in the urine. Diameter, distribution, degree of aggregation and potential, and finally HRTEM observation to observe the morphology, chemical composition, and element composition of the nanocrystals. The results showed that the content of Ca2+ and lemon hydrochloric acid in the urine of the experimental group was lower than that of the control group. The particle size of the nanocrystals increased with the increase in the pore size of the membrane. The average particle size of the experimental group increased gradually from 163 ± 31 nm to 3219 ± 863 nm, while the average particle size of the control group increased from 183 ± 65 nm to 997 ± 522 nm. The mean value of the potential decreased with the increase in the pore size of the filter membrane. The change amplitude of the experimental group was 6.57 mV, while the change amplitude of the control group was only 1.75 mV. In the composition of nanocrystals, element O accounts for the most, accounting for 42.54% of all elements. This indicates that the aggregation of nanocrystals in urine will lead to the rapid increase in the size of nanocrystals, which will eventually lead to the formation of stones.

Influence of the Amyrasol R-Z mineral lick briquette on biochemical parameters of blood in dairy cowsInfluence of the Amyrasol R-Z mineral lick briquette on biochemical parameters of blood in dairy cow

2020 ◽  
pp. 13-14
Author(s):  
Ayub Yu. Aliev ◽  
◽  
Karine A. Karpushchenko ◽  
Abdulgamid A. Aliev ◽  
Keyword(s):  
Dairy Cows ◽  
Milk Fat ◽  
Biochemical Parameters ◽  
Fat Content ◽  
Control Group ◽  
Milk Productivity ◽  
Basic Diet ◽  
The Republic ◽  
Experimental Group ◽  
Mineral Lick

The data obtained as a result of the use of a mineral lick briquette Amirasol R-Z in the diets of dairy cows are analyzed in the article. Authors studied the influence of the mineral lick briquette Amirasol R-Z on the biochemical parameters and milk productivity of dairy cows. The experiments were carried out on dairy cows of the red steppe breed in the conditions of the plain zone of the Republic of Dagestan. Two groups of dairy cows were formed (10 heads in each). According to the scheme of the experiment, the control group received a basic diet, the experimental group received the basic diet and the mineral lick briquette Amirasol R-Z. Each cow of the experimental group was given individually one lick briquette in a dose of 4 kg during 90 days. Researches and data processing were carried out according to generally accepted methods. Blood was taken from the experimental animals from the jugular vein for laboratory studies at the end of the experiment. The milk productivity and fat content of milk were taken into account by carrying out monthly control milk yields. At the same time, the positive effect of a lick briquette on the biochemical parameters of blood has been proven: reserve alkalinity, glucose, macro- and microelements, the activity of the copper-containing enzyme ceruloplasmin and milk productivity. A significant increase in the blood of glucose concentration by 12.93% in the cows of the experimental group, the level of reserve alkalinity by 17.66%, the concentration of macroelements and microelements, milk productivity by 5.7%, milk fat by 2.77% compared with the control group. The use of the mineral lick briquette Amirasol R-Z in the diets of dairy cows helps to prevent macro- and microelementoses, increase milk productivity, milk fat content, nonspecific immunity and obtain of healthy calves.

Chitosan Nanoparticles Loaded with TGF-β1 Inhibit Cervical Cancer Cell Progression Through Down-Regulation of MicroRNA-155 and Activation of Tim-3 Pathway

2021 ◽  
Vol 17 (9) ◽  
pp. 1850-1857
Author(s):  
Meiling Yan ◽  
Yali Zhang ◽  
Shanshan Chang
Keyword(s):  
Cervical Cancer ◽  
Particle Size ◽  
Cancer Cell ◽  
Chitosan Nanoparticles ◽  
Inflammatory Factors ◽  
Control Group ◽  
Target Cells ◽  
Down Regulation ◽  
And Control ◽  
Experimental Group

Chemically modified chitosan nanoparticles (NPs) are capable of releasing their own substances to target cells or tissues, improving microenvironment and promoting wound healing. This study aimed to explore the molecular mechanism underlying chitosan NPs loaded with TGF-β1 participating in cervical cancer (CC) progression. TGF-β1-loaded-chitosan NPs were prepared and particle size distribution, zeta potential and encapsulation efficiency of NPs were determined. MTT assay assessed the toxicity of NPs to macrophages. CC cells were co-cultured with TGF-β1-loaded chitosan NPs (experimental group) or pure chitosan NPs (control group) and cells were cultured alone to produce control group. After treatment, flow cytometry was conducted to detect apoptosis and cycle. Cancer cell migration was evaluated by Transwell assay, and miR-155 and Tim-3 expression was determined. At a ratio of 2:1 chitosan and TGF-β1, the particle size was102.65±11.98 nm, which was smallest, with high encapsulation rate of 81.26%, and low potential of 1.46±1.71. NP toxicity increased as concentration rose and relative cell proliferation rate was >80%, indicated as non-toxic. CC tissues had positive expression of CD163 and TGF-β1 (95%) (p < 0.05). Treatment with TGF-β1-loaded chitosan NPs induced increased apoptosis rate of 9.13±2.15%, reduced migration (67.65±9.91) and invaded cells (19.98±3.41), causing cell accumulation in the S phase when compared to the blank and control groups (p < 0.05). Besides, experimental group exhibited lower expression of miR-155 (0.39±0.59) and higher expression of Tim-3 (2.87± 0.51), which was higher than the blank group and control group. The optimal concentration ratio for producing TGF-β1-loaded chitosan NPs was 2:1, with less toxicity. The composite NPs suppressed malignant characteristics of CC cells through down-regulation of miR-155 and activation of Tim-3 signal pathway on the surface of macrophages, promoting secretion of macrophage inflammatory factors.

THE EFFECT OF MICRONUTRIENT AND PROBIOTIC FOR HEMATOLOGICAL PARAMETERS OF BIRDS

2016 ◽  
Vol 1 (4) ◽  
pp. 71-74
Author(s):  
Колесникова ◽  
Irina Kolesnikova ◽  
Никулин ◽  
Vladimir Nikulin
Keyword(s):  
Potassium Iodide ◽  
Broiler Chickens ◽  
Hematological Parameters ◽  
Experimental Studies ◽  
Control Treatment ◽  
Maximum Effect ◽  
Control Group ◽  
Hemoglobin Content ◽  
Basic Diet ◽  
Experimental Group

The purpose of research is improving physiological and biochemical status and productive qualities of broiler chickens by including basic diet lactoamilovorin and potassium iodide. For experimental studies experimental and control groups formed randomly on the 35 day-old chicks, which were grown in Techa-of 42 days at the cellular content. It was found that the number of red blood cells in the blood of studied groups broiler chickens in the whole investigated period increased. leukocyte concentration was lower in broilers of the experimental group by 2.6%, compared to the control. The hemoglobin content increased in those chenie the entire period of study in a group of birds fed the probiotic and potassium iodide. Statistically significant differences in hematological parameters relative to those of the control group of birds observed in the integrated use of iodine preparations and probiotics in the period from 14 th to 42 th day. At 14, 21, 35 and 42 day old chicks advantage over the control treatment groups on the hemoglobin content amounted to 14.03, respectively; 10.40; 9.79 and 12.28%.Analyzing the morphological indicators of blood of experimental groups, it should be noted that they were within the physiological norm. The maximum effect is the physiological norm was observed in broiler chickens III experimental group, which in addition to the basic diet fed potassium iodide and lactoamilovorin.

SORBENTS AND PROBIOTICS IN FEEDING OF WEANLING PIGLETS

2016 ◽  
Vol 1 (3) ◽  
pp. 37-40
Author(s):  
Псхациева ◽  
Zemfira Pskhatsieva
Keyword(s):  
Body Weight ◽  
Average Daily Gain ◽  
Test Group ◽  
Live Weight ◽  
The Body ◽  
Control Group ◽  
Basic Diet ◽  
Weanling Piglets ◽  
Feed Costs ◽  
Experimental Group

The purpose of research is increase in economically useful qualities of piglets weaned with co-feeding of the sorbent Kovelos-Sorb and probiotic Sporotermin. Weanling piglets produced in 2 months of age. Duration of the experiment was 60 days, on reaching the age of 120 days. The first control group received a basic diet, the second experimental group – the basic diet and probiotic Sporotermin in the amount of 0.1% by weight of the feed, the third experimental group – the basic diet and sorbent Kovelos-Sorb in the amount of 0.1% by weight of the feed, the fourth test group – the basic diet, Sporotermin 0.1 by weight of the feed and Kovelos-Sorb 0.1% by weight of the feed. The studies found that the body weight of piglets at the age of 120 days in the second, third and fourth groups were higher by 4.1; 6.6 and 10.9%, respectively, relative to the first live weight of pigs group. It has also been found to increase average daily gain of 7.1; 11.7 and 19.4%, respectively, relative growth of the first group of piglets. Feed costs decreased by 3.7-16.3% in the experimental group, fed by the sorbent and the probiotic and probiotic sorbent together. With increasing body weight, the increase and feed decrease, there was an increase of beef entering the 0.4-1.6% relative to slaughter pigs release of the first group. Based on these data, we recommend the combined using of probiotic Sporoderm and sorbent Cavelos-Sorb, respectively, in the amount of 0.1% by weight of the feed for piglets-weaned at 2 months of age.

scholarly journals Elimination the Impact of Heat Stress by Supplementation of Antioxidants Into Diet of Duroc Boars

2018 ◽  
Vol 66 (1) ◽  
pp. 161-169
Author(s):  
Magdalena Přibilová ◽  
Pavel Horký ◽  
Pavel Nevrkla ◽  
Jiří Skládanka
Keyword(s):  
Heat Stress ◽  
Semen Quality ◽  
Alpha Tocopherol ◽  
Control Group ◽  
Basic Diet ◽  
Abnormal Sperm ◽  
Motility Of Sperm ◽  
The Impact ◽  
Experimental Group ◽  
Vit C

The aim of this experiment was to find out, if is it possible to eliminate the impact of heat stress on quality of Duroc boar ejaculate by the addition of complex of antioxidants (Selenium, Zinc, Vit. C and Vit. E) into the basic diet. The experiment was carried out at the station of insemination in Velke Mezirici (Czech Republic) from May to September. For the study were chosen 12 Duroc boars, of approximately the same age and weight, and were divided into two groups. The control group (n = 6) was fed only by basic diet, the experimental group (n = 6) was fed by basic diet with the supplementation of antioxidants in amount: 0.5 mg selenium (seleno-methionine), 70 mg zinc (zinc-methionine), 70 mg vit. E (alpha-tocopherol) and 350 mg vit. C (L-ascorbic acid) per kilogram of basic diet. Monitored parameters of ejaculate was volume of ejaculate (ml), concentration of sperm (106/ml), total rate of sperm (109), motility of sperm (%) and amount of morphologically abnormal sperm (%). The control group reported slight increase in volume of ejaculate (of 19 %), which is common in summer months. At the same time was the concentration of sperm unstable, during August there was an increase of 15 %, but during September concentration decreased below the initial amount. Motility was around 69 % during whole experiment. There was an increase (of 15 %) in amount of morphologically abnormal sperm, but the result was insignificant. The experimental group had a higher volume of ejaculate, but the diagram of volume of ejaculate was almost the same with the control group. Concentration of sperm increased after the supplementation of antioxidants (of 23 %) and during the experiment decreased only slightly. Motility was about average amount 70 % and was not various during the experiment. In amount of morphologically abnormal sperm there was an increase about 12 %. According to the results, the supplementation of antioxidants had no significant effect on improving of semen quality. But the addition could have a positive effect to stable the parameters of ejaculate.

scholarly journals Application of iodine helated forms, cobalt and selenium when feeding young cattle

2018 ◽  
pp. 125-132
Author(s):  
E. Iu. Zaliubovskaya
Keyword(s):  
Weight Gain ◽  
Biochemical Parameters ◽  
Live Weight ◽  
Control Group ◽  
Organic Form ◽  
Live Weight Gain ◽  
Basic Diet ◽  
Young Cattle ◽  
Hematological And Biochemical Parameters ◽  
Experimental Group

The article explores hematological and biochemical parameters of blood, dynamics of live weight gain of young cattle of black-and-white breed when being fed feeding of a fodder additive. The experiment was conducted under conditions of dairy complex Priamurye of Tambov district of Amur region in 2017-2018. The researchers arranged experimental groups of calves by means of similar pairs taking into account age, live weight and physiological condition. There were three groups of animals arranged, one control group and two experimental ones. Each group included 10 calves aged 12 months. The conditions of young cattle keeping were similar. The control group calves were fed with basic diet at the farm, the 1st experimental group received iodine, cobalt and selenium in mineral form, whereas the 2nd experimental group received the same elements in helated (organic) form. At the end of the experiment, the coefficients of digestibility of crude protein, crude fat, nitrogen-free extractives and crude fiber were determined on the basis of the data on the amount of nutrients consumed and isolated by animals with feces. When microelements in mineral and helated forms were included in the basic diet of young cattle, microelements in organic form had a positive effect on hematological and biochemical parameters of blood of calves of the 2nd experimental group. Application of elements in organic form in the diets of young cattle increased digestibility coefficients of nutrients. This contributed to live weight gain, average daily and absolute growth of animals in the 2nd experimental group.

scholarly journals Effect of Humic Acids on Lead Accumulation in Chicken Organs and Muscles

2008 ◽  
Vol 77 (3) ◽  
pp. 439-445 ◽  
Author(s):  
Z. Zralý ◽  
B. Písaříková ◽  
M. Trčková ◽  
M. Navrátilová
Keyword(s):  
Lead Acetate ◽  
Reference Value ◽  
Current Status ◽  
Control Group ◽  
Concurrent Administration ◽  
Basic Diet ◽  
Experiment Control ◽  
Experimental Group ◽  
Effect Of Feeding ◽  
Group 1

The purpose of the present study was to investigate the effect of feeding humic acid (HA) to pullets treated for 10 days on its concentrations in the organs and muscles. Forty pullets allocated to 4 groups with ten birds in each were used in the experiment. Control group (K) was fed the basic diet without supplementation. The second group (HA) was fed the basic diet with HA at the dose of 500 mg/chicken/day. Experimental group 1 (Pb) was fed basic diet containing lead acetate at the dose of 3.54 mg (1.42 mg Pb) per pullet/day and the second experimental group (Pb + HA) was moreover fed 500 mg HA/day. The lead content was determined in the samples of liver, kidney, bone and muscle tissue. Very low lead concentrations detected in the liver, kidneys and muscles of control group constituted the background, which reflected the current status of nutrition. The lead concentrations in the tissues were 4%, 12.6% and 10% of the highest admissible amounts (0.5 and 0.1 mg Pb/kg), respectively. In the experimental group (Pb), significantly increased lead concentrations were detected in liver, kidneys, bones (P < 0.001) and muscles (P < 0.05). The highest accumulation was found in bones (2.711 ± 0.59 mg/kg). Concurrent administration of HA and lead acetate (HA + Pb group) caused a significant decrease in the Pb content, i.e. by 30%, 43.8 %, 53.8 % and 50.6% in liver, kidneys, muscles and bones, respectively, in contrast to experimental group Pb. The values of selected biochemical indicators ranged in reference value limits, except the significant decrease of copper concentration in experimental groups.

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