scholarly journals Testicular and seminal evaluation of goats fed hay Cenostigma pyramidale

2020 ◽  
Vol 40 (12) ◽  
pp. 963-969
Author(s):  
Maria V.B. Santos ◽  
Ana K.S. Cavalcante ◽  
Juliana T.S.A. Macêdo ◽  
Marilúcia C. Santos ◽  
Laiara F. Rocha ◽  
...  
Keyword(s):  
Gonadosomatic Index ◽  
Live Weight ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Blood Collection ◽  
Panicum Maximum ◽  
Alternative Source ◽  
Parametric Data ◽  
Testicular Weight ◽  
Student’S T

ABSTRACT: This study aimed to assess the possible occurrence of reproductive changes in male goats associated with ingestion of Cenostigma pyramidale hay. Sixteen animals divided into two experimental groups, G1 and G2 (control group) were used. Animals in G1 received 2% of forage, based on live weight (LW), composed of 100% of C. pyramidale, and animals in G2 received 2% of Panicum maximum “Massai’ grass hay, based on LW. Both groups received 1% of concentrated feed supplementation based on LW, along with mineralized salt and water ad libitum. The goats were subjected to weighing, testicular biometry, and semen and blood collection every 30 days. After 120 days, the animals were castrated and their testes were collected. Testicular measurements were performed and fragments were collected for histological processing to determine the gonadosomatic index (GSI), diameter of the seminiferous tubules, height of the germinal epithelium (HGE), volumetric proportion and volume of the testicular parenchyma components, total length of the seminiferous tubules, length of the seminiferous tubules per gram of testis, and leydigosomatic and tubulosomatic indexes. The data were evaluated for normality using the Student’s t-test. Data with normal distribution were assessed using analysis of variance (ANOVA) and the non-parametric data were evaluated using the Kruskal-Wallis test, both at 5% probability. Statistically significant differences (p<0.05) were observed for GSI (G1=0.48 ±0.08 and G2=0.34 ±0.09) and HGE (G1=52.95 ±2.99 and G2=.47.63 ±2.67) between treatments. Consumption of C. pyramidale hay increased LW and, consequently, testicular weight, contributing to high GSI. In conclusion, ingestion of C. pyramidale has no toxic effect on the testicular, seminal and histological parameters of goat testis. Due to its nutritional characteristics, consumption of this plant improves animal body development. Because C. pyramidale is adapted to semi-arid regions, it can be an alternative source of feed for goats during periods of shortage.

scholarly journals THE EFFECT OF RED DRAGON FRUIT SKIN EXTRACT (Hylocereus polyrhizus) ON THE NUMBER OF LEYDIG CELLS, DIAMETER OF SEMINIFEROUS TUBULES, AND TESTICULAR WEIGHT OF MALE MICE (Mus musculus) EXPOSURED WITH HOT TEMPERATURES

2021 ◽  
Vol 10 (1) ◽  
pp. 18
Author(s):  
Kukuh Prastyaningtyas ◽  
Rochmah Kurnijasanti ◽  
Rahmi Sugihartuti ◽  
Suherni Susilowati ◽  
Tri Wahyu Suprayogi ◽  
...  
Keyword(s):  
Mus Musculus ◽  
Leydig Cells ◽  
Heat Exposure ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Skin Extract ◽  
Male Mice ◽  
Fruit Peel ◽  
Testicular Weight ◽  
Hylocereus Polyrhizus

This study aims to determine the effect of red dragon (Hylocereus polyrhizus) fruit peel extract (RDFPE) on the parameters of Leydig cells number, seminiferous tubules diameter, and testicular weight of mice (Mus musculus) exposed to heat (40°C). Twenty adult male mice were divided randomly into five groups. The control group (C) mice only received a placebo. Meanwhile, the treatment groups mice were exposed to heat for 45 minutes daily for 36 days and oral administration of placebo, RDFPE of 250, 500, and 1000mg/kg BW for T0, T1, T2, and T3, respectively. The result showed that heat exposure on mice (T0 group) caused a lower of all of the parameters (p <0.05) than normal mice (control group, C). RDFPE administration at a dose of 250 mg/kg BW (T1 group) and 500 mg/kg BW (T2 group) resulted in a higher value of those parameters (p <0.05) compared to the T0 group. All those parameters of the T2 group (dose of 500 mg/kg BW) were not significantly different (p >0.05) than the control group (normal mice). However, the higher dose of RDFPE (1000 mg/kg BW, T3 group) resulted in the lower values of those parameters (p <0.05) than those of the T2 group. It could be concluded that 500mg/kg BW dose of RDFPE could return Leydig cells number, seminiferous tubules diameter, and testicular weight of mice (Mus musculus) exposed to heat.

scholarly journals A single neonatal administration of soybean oil and/or tamoxifen affects permanently the testis histomorphology in adult rats.

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Alicia González-González ◽  
Everardo González-Padilla ◽  
Francisco Fierro-Fierro ◽  
María De Lourdes Juárez-Mosqueda ◽  
Juan José Pérez-Rivero ◽  
...  
Keyword(s):  
Soybean Oil ◽  
Sexual Differentiation ◽  
Critical Period ◽  
Male Rats ◽  
Histological Evaluation ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Adult Rats ◽  
Testicular Weight ◽  
Neonatal Administration

The aim of this study was to determine the effect of tamoxifen (Tx) and its vehicle, soybean oil (SO), during the critical period of hypothalamic sexual differentiation in newborn male rats, regarding gonadal histomorphology during adulthood. The animals were randomly divided into 3 groups (n = 5 each). An hour after birth, one group was treated subcutaneously with 200 μg of Tx, using commercial SO (20 uL) as a vehicle; another group was treated with only 20 μL of SO; the control group received no treatment. All rats were weighed and sacrificed by cervical dislocation on day 90 post-treatment. Testicles were removed, weighed and processed for histological evaluation. The single administration of Tx and/or SO during the critical period of sexual differentiation of the hypothalamus permanently altered testicular histomorphology, spermatogenesis, and body weight in adulthood. Alterations included vacuolization and reduction in the number of spermatogonia and Sertoli cells. The administration of Tx reduced the testicular weight, the diameter and area of the seminiferous tubules, and the height of the germinal epithelium, and increased the intertubular space. Soybean oil by itself reduced the number of spermatocytes and spermatids more than Tx did. There was no effect on the number of Leydig cells. The possibility that soybean oil can act as an endocrine disruptor deserves greater attention and opens the possibility for the development of new methods of pest control.

scholarly journals Effect of tamsulosin on testis histopathology and serum hormones in adult rats: Experimental study

2020 ◽  
Author(s):  
Yegane Kohestani ◽  
Bentolhoda Kohestani ◽  
Zahra Shirmohamadi ◽  
Masoumeh Faghani
Keyword(s):  
Experimental Study ◽  
Adult Male ◽  
Clinical Symptoms ◽  
Male Rats ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Adult Rats ◽  
Serum Hormones ◽  
Alpha Adrenergic Receptors ◽  
Testicular Weight

Background: Tamsulosin is an inhibitory factor of alpha-adrenergic receptors that is used for relieving of the clinical symptoms and management of acute urinary retention. Objective: The aim of this study was to evaluate the effects of tamsulosin on the endocrine axis and testicular tissue in adult male rats. Materials and Methods: In this experimental study, 30 adult male Wistar rats (weighing 250-300 gr) were divided into three groups: 1) control (received distilled water), 2) experimental 1 (received 0.2 mg/kg/day tamsulosin) and 3) experimental 2 (received 0.4 mg/kg/day tamsulosin) through oral gavage for 28 days. Serum hormones level and testicular histopathology were evaluated at the end of the experiment. Results: In this study, the testicular weight decreased significantly in the experimental groups compared to the control group. A significant decrease was seen in testicular weight (p = 0.004) and the number of Leydig cells in tamsulosin-treated groups (p = 0.012). Tamsulosin improved the hormone profile in experimental groups. Also, higher dose of tamsulosin significantly changed the number of Leydig, spermatogonia cells, the thickness of germinal layer, and the diameter of the seminiferous tubules. Conclusion: Results showed that using tamsulosin, possibly reduces the testosterone concentration through adrenergic axis system and in turn has destructive effects on proliferative activity of germ cells. Key words: Tamsulosin, Seminiferous tubules, Histopathology, Rat, Testis.

scholarly journals KUALITAS SPERMATOZOA TIKUS WISTAR (Rattus norvegicus) SETELAH PEMAPARAN OBAT NYAMUK ELEKTRIK BERBAHAN AKTIF TRANSFLUTRIN

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Elia . ◽  
Lusiana Satiawati ◽  
Janette M. Rumbajan
Keyword(s):  
Rattus Norvegicus ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Mosquito Repellent ◽  
Active Ingredients ◽  
Pyrethroid Insecticides ◽  
Randomized Design ◽  
Testicular Weight ◽  
Male Wistar Rats ◽  
Mosquito Repellents

Abstract: Transflutrin (C15H12CL2F4O2) is an active substance, a derivative of pyrethroid compounds found in electric mosquito repellent. Previous studies showed that group of pyrethroid insecticides can play a role in causing histological changes in testes, decreased testicular weight and reducing diameter of seminiferous tubules. The purpose of this study was to determine the quality of wistar male sperm that are exposed to electric mosquito repellent with transflutrin as active ingredients. This study is experimental with completely randomized design, conducted for 52 days by using eight wistar which consists of two wistar as controls P0, 3 wistar with exposure to electric insect repellent for 8 hours/day (P1), and 3 other wistar for 12 hours/day (P2). The results of this study, the concentration of spermatozoa in the treatment group P1 and P2 respectively at 54.17 x 106 spermatozoa/ml and 45.5 x 106 spermatozoa / ml, in the control group P0 of 59.25 x 106 spermatozoa/ml. Abnormal sperm motility in P1 and P2 is 40% and 35%, at P0 is 45%. Morphologically normal spermatozoa in P1 and P2 is 49% and 78%. It can be concluded that exposure to electric mosquito repellent with transflutrin as active ingredients causes a decrease in sperm quality.Keywords: electronic mosquito repellents, pyrethroid, transflutrin, male wistar rats, sperm qualityAbstrak: Transflutrin (C15H12CL2F4O2) adalah zat aktif yang merupakan senyawa turunan dari pyrethroid dalam obat nyamuk elektrik. Hasil penelitian sebelumnya menunjukkan bahwa insektisida golongan pyrethroid dapat menyebabkan perubahan histologis testis, menurunnya berat testis dan berkurangnya diameter tubulus seminiferus. Tujuan dari penelitian ini adalah untuk mengetahui kualitas spermatozoa wistar jantan (Rattus norvegicus) yang dipapari obat nyamuk elektrik berbahan aktif transflutrin. Penelitian ini bersifat eksperimental dengan rancangan acak lengkap yang dilakukan selama 52 hari dengan menggunakan sampel sebanyak 8 wistar yang terdiri atas 2 wistar sebagai kontrol (P0), 3 wistar dengan pemaparan obat nyamuk selama 8 jam/hari (P1), dan 3 wistar lainnya selama 12 jam/hari (P2). Hasil dari penelitian ini didapatkan konsentrasi spermatozoa pada kelompok perlakuan P1 dan P2 secara berurutan sebesar 54,17 x 106 spermatozoa/ml dan 45,5 x 106 spermatozoa/ml, pada kelompok kontrol P0 sebesar 59,25 x 106 spermatozoa/ml. Motilitas spermatozoa normal pada P1 dan P2 adalah 40% dan 35%, pada P0 adalah 45%. Morfologi abnormal spermatozoa pada P1 dan P2 adalah 49% dan 78%. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa pemaparan obat nyamuk elektrik berbahan aktif transflutrin menyebabkan penurunan kualitas spermatozoa.Kata kunci: obat nyamuk elektrik, pyrethroid, transflutrin, tikus wistar jantan, kualitas spermatozoa

Taro flour (Colocasia esculenta) increases testosterone levels and gametogenic epithelium of Wistar rats

2018 ◽  
Vol 9 (4) ◽  
pp. 373-376 ◽  
Author(s):  
G. G. Ribeiro ◽  
L. R. Pessôa ◽  
M. D. C. de Abreu ◽  
L. B. N. S. Corrêa ◽  
A. D’Avila Pereira ◽  
...  
Keyword(s):  
Body Length ◽  
Sertoli Cells ◽  
Control Diet ◽  
Caloric Intake ◽  
Male Rats ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Testosterone Levels ◽  
Taro Flour ◽  
Testicular Weight

AbstractThis study evaluated the effects of diet containing taro flour on hormone levels and the seminiferous tubules morphology of rats. After weaning, the male rats were divided into two groups (n=12 each): control group (CG) treated with control diet and taro group (TG), fed with 25% taro flour for 90 days. Food, caloric intake, mass and body length were evaluated at experiment end. Testis followed the standard histological processing. Immunostaining was performed using an anti-vimentin antibody to identify Sertoli cells. In histomorphometry, total diameter, total area, epithelial height, luminal height and luminal area were analyzed. The testosterone levels were performed using the radioimmunoassay method. Group TG presented (P<0.05): increase in mass, body length, testicular weight, histomorphometric parameters and hormonal levels. Food intake, calorie and Sertoli cells not presented statistical differences. The taro promoted increase in the testicles parameters and hormones.

201 Spermatogonia Transplantation in the Chicken

2018 ◽  
Vol 30 (1) ◽  
pp. 241
Author(s):  
A. N. Vetokh ◽  
N. A. Volkova ◽  
T. O. Kotova ◽  
E. N. Antonova ◽  
A. V. Dotsev ◽  
...  
Keyword(s):  
Cell Population ◽  
Sertoli Cells ◽  
Recombinant Dna ◽  
Genetic Material ◽  
Live Weight ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Spermatogenic Cells ◽  
Donor Cells ◽  
Male Chicken

Spermatogonia are the precursors of male germ cells. They are a valuable genetic material for the production of transgenic poultry. This technology includes isolation of the spermatogonia from male donor’s testes, transformation, and transplantation of donor cells into the sterilized recipient’s testes. The transplanted spermatogonia subsequently differentiate into male sex cells (sperm). The aim of this study was to optimize the individual stages of donor spermatogonia transplantation into the recipient’s testes to increase the effectiveness of spermatogenesis recovery. In the first stage, the spermatogenesis in male chicken was examined to determine the optimal age for isolation of spermatogonia from testes. Histological examinations of male chicken testes (n = 80 birds) were done for 8 age categories, from 1 week to 3 months. It was found that under the age of 4 weeks, the cell population in the seminiferous tubules of male chickens was represented mainly by Sertoli cells and spermatogonia. Maximum percentage of spermatogonia was 69 ± 3% at 4 weeks. At the next stage, a culture of spermatogonia was obtained. Testes of 3-week-old male chickens were used. Separation of the spermatogonia from other types of cells was based on a differential adhesive capacity. The maximum homogeneity of the cell population was established by transfer (3 times) of the supernatant containing unattached cells after 24 h of cultivation into a new culture dish for further cultivation. The cell population is represented mainly by the spermatogonia (89 ± 3%). The lentiviral transduction (pHAGE vector, ZsGreen under CMV promotor) was used to transform the resulting culture of the spermatogonia. The efficiency of spermatogonia infection with lentiviral particles (TU/mL = 2.5 × 108) was 65 ± 2%. After transformation, spermatogonia were introduced into the testes of busulfan-sterilized recipients. The optimal concentration of busulfan treatment after series of experiments from 40 to 100 mg/kg was determined. The effective dose for the removal of own spermatogenic cells was revealed at a concentration of 80 mg/kg of live weight. With complete elimination of other types of spermatogenic cells, the number of Sertoli cells and spermatogonia in the testicle tubules decreased by 39 ± 2% and 98 ± 1%, respectively, compared with the control group. The efficiency of spermatogenesis recovery was assessed based on sperm analysis that was obtained from male recipients (n = 5 birds) 4 months after the introduction of donor cells using PCR. The presence of recombinant DNA (ZsGreen) in recipients’ sperm was shown. Thus, our results indicate the prospect of using spermatogonia as a genetic material for the production of transgenic poultry. Study was supported by the Russian Science Foundation (Project no.16-16-10059).

scholarly journals Evaluation of the ultradiluted medication MPD 30 CH in the offspring of mice mothers treated with methylphenidate during lactation.

2021 ◽  
Vol 15 (4) ◽  
pp. 20-21
Author(s):  
Cideli de Paula Coelho ◽  
Bruna Oliveira ◽  
Larissa Cristina Ares Silveira da Motta ◽  
Amanda Sousa ◽  
Maria Martha Bernardi
Keyword(s):  
Open Field ◽  
Maternal Behavior ◽  
Control Group ◽  
Parametric Data ◽  
Lower Mobility ◽  
Student’S T ◽  
Anxious Behavior ◽  
Maternal Tolerance ◽  
And Control ◽  
Dark Transition

Background: Methylphenidate (MPD) is a non-stimulating amphetamine that has being used for some time in the treatment of Attention Deficit Hyperactivity Disorder (ADHD) and, in adequate doses, it promotes the remission of symptoms and the improvement of important aspects, as social interaction and academic performance1, in patients with ADHD. Literature data indicates that MPD attenuates maternal behavior in mices2. According to this line of study, the work “Repeated methylphenidate administration during lactation reduces maternal behavior, induces maternal tolerance, and increases anxiety-like behavior in pups in adulthood”3 was carried out and confirmed that MPD administration during early lactation disrupts maternal behavior and causes anxiety in pups in adulthood. Would it be possible that ultradiluted and dynamized MPD change pups’ behavior? Objective: The aim of this study was to evaluate how the ultradiluted drug may or may not change the behavior of the animals at issue. Material and Methods: The medication was prepared according to the Brazilian Homeopathic Pharmacopeia, in the 30 CH dilution. The present study was approved by the Ethics Committee for Animal Experimentation of the Paulista University (No. 256/14 CEP / ICS / UNIP). Animals in this study were the same of the study above mentioned, and already published. Adult male mice were grouped among 13 animals of the experimental group (adults, offspring of mothers that received MPD during pregnancy) and 9 animals from the mother-control group, which did not take MPD during pregnancy. The 22 animals took ultradiluted MPD 30 CH medication in their drinking water ad libitum, for 20 days. In each water drinker, 5 drops of medication were added and stirred. Behavioral tests, such as the Open Field and the Light Dark Transition Test for mice, were performed. Data was analyzed statistically by the Student's T-Test to compare parametric data from two groups and the Mann-Whitney Test for nonparametric data, where p ≤ 0.05 is considered significant. Results and Discussion: In the Open Field Test, from the group of mothers medicated with methylphenidate during pregnancy, before the medication MPD 30 CH, animals showed a lower mobility and a greater immobility (p≤ 0.05) compared to the control-animals; after medication with the MPD 30 CH, animals exhibited an increase in mobility and a decrease in immobility, leading to no statistical difference between the medication group and the control group. In the Light Dark Transition Test for mice, experimental animals spent more time in the dark box and exhibited a decrease of the Rearing, presenting an anxious behavior; after the MPD medication, there were no more differences between experimental and control groups. Indiscriminate use of amphetamines has increased in recent years and this use, when not monitored, can cause serious adverse effects4. In this sense, ultradiluted medication can collaborate with the remission of possible undesirable effects. Conclusion: Initially, the MPD 30 CH changed the behavior shown by animals born from mothers that took methylphenidate during lactation and presented an anxious behavior as an unexpected effect. The mice that took the MPD 30 CH did not present the anxious behavior. Other experiments should be conducted to confirm the results of this study.

scholarly journals Enhanced Protective Effects of Combined Treatment withβ-Carotene and Curcumin against Hyperthermic Spermatogenic Disorders in Mice

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Chunmei Lin ◽  
Yun Seok Choi ◽  
Seul Gi Park ◽  
Lee Wha Gwon ◽  
Jong Geol Lee ◽  
...  
Keyword(s):  
Combined Treatment ◽  
B Cell Lymphoma ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Protective Agent ◽  
Mrna Levels ◽  
Protective Effects ◽  
Phospholipid Hydroperoxide Glutathione Peroxidase ◽  
Sod Activity ◽  
Testicular Weight

Scrotal hyperthermia leads to oxidative stress and apoptosis in spermatogenic cells, which subsequently causes male infertility. In this study, we examined the effects ofβ-carotene and/or curcumin on heat-stress- (HS-) induced testicular injuries in mice. ICR male mice (8 weeks old) were consecutively treated withβ-carotene (10 mg/kg) and/or curcumin (20 mg/kg) orally once a day for 14 days and then subjected to single exposure with scrotal HS at 43°C for 15 min on day 7. HS induced a significant reduction in testicular weight, appearance of multinucleated giant cells, and desquamation of germ cells in destructive seminiferous tubules, as well as degenerative Leydig cells. Moreover, HS reduced the superoxide dismutase (SOD) activity and mRNA levels of mitochondrial SOD, phospholipid hydroperoxide glutathione peroxidase, B-cell lymphoma-extra-large, and 3β-hydroxysteroid dehydrogenase, with increases in lipid peroxidation levels and mRNA levels of BCL2-associated X protein and caspase-3 relative to those of the control group. However, these changes were significantly recovered by combined treatment withβ-carotene and curcumin after HS. These findings indicate that the combined treatment withβ-carotene and curcumin might be a valuable protective agent to ameliorate hyperthermic spermatogenic disorders via its potent antioxidative, antiapoptotic, and androgen synthetic effects.

scholarly journals Effects of Common Fig (Ficus carica) Leaf Extracts on Sperm Parameters and Testis of Mice Intoxicated with Formaldehyde

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Majid Naghdi ◽  
Maryam Maghbool ◽  
Morteza Seifalah-Zade ◽  
Maryam Mahaldashtian ◽  
Zohreh Makoolati ◽  
...  
Keyword(s):  
Sperm Count ◽  
Gonadosomatic Index ◽  
Ficus Carica ◽  
Sperm Parameters ◽  
Herbal Remedies ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Leaf Extracts ◽  
Positive Effects

Formaldehyde (FA) is the leading cause of cellular injury and oxidative damage in testis that is one of the main infertility causes. There has been an increasing evidence of herbal remedies use in male infertility treatment. This assay examines the role ofFicus carica(Fc) leaf extracts in sperm parameters and testis of mice intoxicated with FA. Twenty-five adult male mice were randomly divided into control; sham; FA-treated (10 mg/kg twice per day); Fc-treated (200 mg/kg); and FA + Fc-treated groups. Cauda epididymal spermatozoa were analyzed for viability, count, and motility. Testes were weighed and gonadosomatic index (GSI) was calculated. Also, histoarchitecture of seminiferous tubules was assessed in the Haematoxylin and Eosin stained paraffin sections. The findings showed that FA significantly decreased GSI and increased percentage of immotile sperm compared with control group. Disorganized and vacuolated seminiferous epithelium, spermatogenic arrest, and lumen filled with immature germ cells were also observed in the testes. However, Fc leaf extracts improved sperm count, nonprogressive motility of spermatozoa, and GSI in FA-treated testes. Moreover, seminiferous tubule with spermatogenic arrest was rarely seen, indicating that Fc has the positive effects on testis and epididymal sperm parameters exposed with FA.

Influence of DAFS-25+polizon composition on blood and functional state of liver of steers at fattening

2020 ◽  
pp. 15-18
Author(s):  
Inna R. Kilmetova ◽  
◽  
Igor A. Rodin ◽  
Nazira I. Khayrullina ◽  
Nikolay G. Fenchenko ◽  
...  
Keyword(s):  
Functional State ◽  
White Blood Cells ◽  
Live Weight ◽  
The Body ◽  
Farm Animals ◽  
Control Group ◽  
Standard Diet ◽  
The Impact ◽  
Experimental Group ◽  
Stimulation Of

Summary. The disbalanced feeding and the uneven distribution of micro- and macroelements in the environment leads to a trace element, in particular hypomelanosis. To accelerate the growth and preservation of young farm animals include in the diet of various biological additives and drugs, which include selenium. For stimulation of weight gain in the livestock industry, as well as for the prevention and treatment of pathological processes in addition to micro - and macrouse amino acids, primarily methionine. The aim of this work was to study the influence of composition of DAFS-25+Polizon on morpho-biochemical parameters of blood and functional state of the liver in fattening bulls of black-motley breed in the conditions of the Republic of Bashkortostan. Experiments using were conducted on bull-calves of black-motley breed of the properties in the properties age from 6 to 15 months. The first experimental group during the experiment was additionally given the composition of DAFS-25+Polizon at a dose of 2 mg/kg, the animals of the control group received a standard diet. To assess the impact of the composition DAFS-25+Polizon on metabolism cattle studied morphological and biochemical indicators of blood and conducted histological examination of the liver. It is established that the use of the composition of DAFS-25+Polizon at a dose of 2 mg/kg increases the number of erythrocytes and hemoglobin in the experimental group and reduces the amount of white blood cells. The serum content of total protein, phosphorus and calcium increases in the group of experimental animals. Microscopic examination of the liver revealed no changes in the structure of the organ and hepatocytes in the experimental group, whereas in the control group hemodynamic disorders and dystrophic changes in liver cells were observed. Thus, the use of the composition DAFS-25+Polizon at a dose of 2 mg/kg of live weight in fattening bulls black-and-white breed contributes to the increase of redox processes in the body, stimulation of metabolism, prevent the development of liver disorders of cellular mechanisms of metabolism, optimizes the structure of the liver, which generally provides higher productivity.

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