PSII-7 Is Scrotal Ultrasound a Useful Tool in Ram Breeding Soundness examination?
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Abstract Varicocele, a condition of abnormally dilated veins within the pampiniform plexus, is associated with reduced male fertility in several species but its frequency and impact in rams is not well documented. Semen was collected and pampiniform plexus ultrasound performed in early December during breeding soundness examinations (BSE) of mature Composite-IV rams over a three-year study. A portion of rams were evaluated in multiple years and data from a total of 129 collections on 90 rams were available for analyses. Semen parameters were estimated by computer-assisted sperm analysis (CASA). Imaging software was used to quantify the cross-sectional area of five vessels per testis and average areas of the left testis (AAL), right testis (AAR), and both testes (AAT) were calculated. The correlation between AAL and AAR measured on the same ram within a year was moderate and positive (0.51; P < 0.001). However, correlations between AAL, AAR, and AAT measured on the same ram in consecutive years were not different from zero. Average vessel area was analyzed with fixed effects of testis side (AAL or AAR), year (2020, 2021, or 2022), ram age (2, 3, or ≥ 4 yr-old) and a random effect of ram. Across years, AAL was 23 to 25% greater than AAR and 16 to 18% greater in ≥ 4-yr-old than younger rams (P < 0.01). Unilateral varicocele (UV) was diagnosed when AAL/AAR or AAR/AAL ratio exceeded 1.5 in a ram and, for rams sampled in multiple years, those diagnosed in one year were considered affected for all subsequent years. Within year, prevalence of UV ranged from 16 to 36%. Scrotal circumference (SC) and CASA parameters were analyzed with fixed effects of year, ram age, and UV status and a random effect of ram. Within 2- and 3-yr-olds, sperm from UV rams had lower motility than unaffected rams (42.1 ± 6.7% vs 62.2 ± 4.1% and 47.8 ± 7.4% vs 70.1 ± 4.7%, respectively; P ≤ 0.02) but no differences were observed within 4-yr-old rams. Across ages, sperm from UV rams had a lower percentage of normal than unaffected rams (91.5 ± 1.1% vs 94.3 ± 0.74%; P = 0.03). Sperm concentration, progressive motility, and SC were unaffected by UV status. Future studies will evaluate the effect UV status on siring capacity. Ultrasound methodologies previously refined to diagnose varicocele in boars helped identify sub-fertile rams that would not have been classified by routine BSE procedures. However, these methodologies would benefit from concurrent machine learning and software development to ensure imaging consistency across technicians and streamline procedures for real-time decision making. USDA is an equal opportunity provider and employer.Beef cows (n=23) were used to compared conception rates of two different thawing methods
used for artificial insemination (AI). Cows were divided into the treatment or control group
based on time of estrus. In the treatment, frozen semen was placed directly into the AI gun
and inserted into the female for deposition after a minimum of 30 seconds. The control
females experienced the typical thawing process of semen straws placed in a water bath for a
minimum of 30 seconds, then loaded into the AI gun and deposited into the uterus of the
female. Conception rates were similar between semen thawing methods (P > 0.51).
Additionally, the study analyzed semen motility using the two different thaw methods and
found no difference (P = 1.0). In conclusion, thawing semen directly in the reproductive tract
of the female provides the same conception rates as traditional thaw methods.
Reproductive tract
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Spermatologic investigations were made in 227 patients with varicocele at the age of 19-23 years (average age 20.4 years) and in 73 patients with varicocele at the age of 24-40 years (average age 28.0 years). The spermatologic findings of the patients with varicocele were compared with the results of 55 andrologic healthy young men without varicocele. The diverse degrees have a different effect to the sperm quality. Only patients with the clinical signs of the varicocele-orchidiopathy present a decreased sperm quality. The degree varicocele combined with other testicular disorders shows the worst sperm quality. The results in the higher age group explain, that the damage of the testicle increases with longer duration of the varicocele. Differentiating the spermatozoal morphology according to the "Düsseldorf morphological classification" you can find characteristic forms with hyperelongation of the head in patients with varicocele and spermatozoa with acrosomal defects in the degree varicocele combined with other testicular disorders.
Sperm Quality
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There is no subject that is more controversial in the area of male infertility than varicocele. Varicocele is the most common identifiable cause of male infertility. It can develop during puberty and thus affect the testicular growth and function. The incidence of varicocele in the adolescents is about 15 percent worldwide. Varicocele is associated with a time-dependent growth arrest in adolescents. There is a clear association between varicocele, infertility, and testicular growth arrest. It is also known that varicocelectomy can reverse growth arrest in adolescents. Considerable debate regarding the etiology and effects of adolescence varicoceles has appeared in the literature. This knowledge has raised the question of how best to manage adolescents with varicocele. The chapter will discuss the following items: a. The prevalence of adolescence varicocele. b. Regional differences of adolescence varicocele. c. Pathophysiology. d. Anatomy. e. The risk factors for the development of varicocele among boys. f. Presentations. g. The relations between the adolescent varicocele and puberty. h. Evidence from controlled studies against varicocelectomy and the reports supporting varicocelectomy. i. Bilaterality.
Etiology
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Subclinical infection
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Білім берy қоғaмның экономикaлық дaмyының негізі, әлеyметтік тұрaқтылықтың фaкторлaрының бірі, хaлықтың рyхaни-aдaмгершілік әлеyетінің және интеллектyaлдық өсyінің қaйнaр көзі ретінде бaрлық yaқыттaрдa тaптырмaс құндылық болып есептеліп келеді. Aл қaзіргідей aдaм кaпитaлын қaлыптaстырy мен дaмытy мәселесін шешy негізгі міндет ретінде қaрaстырылaтын зaмaндa хaлықтың білімдік қaжеттіліктері өсіп, жоғaры, ортa aрнayлы, кәсіби қосымшa білім aлyғa үміткерлер сaны aртa түсyде. Бұғaн жayaп ретінде білім берy ұйымдaрының сaлaлaнyы aртып, әртүрлі типтегі оқy орындaрының сaны aртyдa, білім берyдің инфрaқұрылымы, бaсқaрy формaлaры, әдістемелік, ғылыми қызмет түрлері дaмyдa. Олaрды білім aлyшылaрдың жеке сұрaныстaры мен мүмкіндіктеріне бaғыттay күшейтілyде. Осығaн орaй білімнің сaпaсынa қойылaтын тaлaптaр aртып, бұл сaлaның әлеyметпен өзaрa әрекеттестігіне негізделген құрылымдық – қызметтік дaмyының көкейтестілігі aртyдa. Мaқaлaдa «серіктестік», «әлеyметтік серіктестік», «білімдегі әлеyметтік серіктестік» ұғым- дaрының мәні aшылып, олaрдың қaлыптaсy және дaмy үрдісіне шолy жaсaлaды, жоғaры оқy орындaрындa педaгогтaрды дaярлayдa әлеyметтік серіктестердің әлеyетін пaйдaлaнyдa бaсшылыққa aлынaтын ұстaнымдaр мен тиімді жолдaры сипaттaлaды. Түйін сөздер: серіктестік, әлеyметтік серіктестік, білімдегі әлеyметтік серіктестік, бірлескен әрекет ұстaнымдaры, әлеуметтік серіктестік әлеуеті. Обрaзовaние является основой экономического рaзвития обществa, одним из фaкторов социaль- ной стaбильности, источником дyховно-нрaвственного потенциaлa и интеллектyaльного ростa людей и во все временa считaлось незaменимой ценностью. И в нaстоящее время, когдa решение проблемы формировaния и рaзвития человеческого кaпитaлa рaссмaтривaется кaк основнaя зaдaчa, рaстyт обрaзовaтельные потребности людей, yвеличивaется количество желaющих полyчить высшее, среднее, специaльное, профессионaльное дополнительное обрaзовaние. В ответ нa это yсиливaется рaзветвленность обрaзовaтельных оргaнизaций, yвеличивaется количество обрaзовaтельных оргaни- зaций рaзличного типa, рaзвивaются инфрaстрyктyрa обрaзовaния, формы yпрaвления, методическaя и нayчнaя деятельность. Yсиливaется их ориентaция нa индивидyaльные потребности и возможности обyчaющихся. В связи с этим повышaются требовaния к кaчествy обрaзовaния, возрaстaет знaчение стрyктyрно-фyнкционaльного рaзвития этой сферы нa основе взaимодействия с обществом. В стaтье рaскрывaется знaчение понятий «пaртнерство», «социaльное пaртнерство», «социaльное пaртнерство в обрaзовaнии», рaссмaтривaется процесс их стaновления и рaзвития, описывaются рyко- водящие принципы и эффективные способы использовaния потенциaлa социaльных пaртнеров в подготовке педaгогических кaдров в высших yчебных зaведениях. Ключевые словa: партнерство, социaльное пaртнерство, социaльное пaртнерство в обрaзовaнии, принципы совместного действия, поненциал социального партнерство. Education is the basis of the economic development of society, one of the factors of social stability, a source of spiritual and moral potential and intellectual growth of people and has always been considered an irreplaceable value. And at the present time, when the solution of the problem of the formation and development of human capital is considered as the main task, the educational needs of people are growing, the number of people wishing to receive higher, secondary, special, professional additional education is increasing. In response to this, the branching of educational organizations is increasing, the number of educational organizations of various types is increasing, the infrastructure of education, forms of management, methodological and scientific activities are developing. Their focus on the individual needs and capabilities of students is increasing. In this regard, the requirements for the quality of education are increasing, the importance of the structural and functional development of this sphere on the basis of interaction with society is increasing. The article reveals the meaning of the concepts of "partnership", "social partnership", "social partnership in education", examines the process of their formation and development, describes the guidelines and effective ways to use the potential of social partners in the training of teachers in higher educational institutions. Keywords: partnership, social partnership, social partnership in education, principles of joint action, the potential of social partnership.
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The aim of this study was to determine the influence of time interval between semen collection and artificial insemination (AI) and the number of spermatozoa in AI doses, on the AI success rate in Tunisian Arabian mares. A total of 79 AI with fresh semen was used on 56 mares (age 4-9 years, n = 34; age 10-20 years, n = 22). The AI success rate was defined as the number of pregnant mares divided by the number of inseminated mares and it was determined for the time intervals: 0-10, 10-20 and 20-30 minutes after semen collection. Doses of AI containing 2 or 3 billions of spermatozoa with fresh raw semen (n = 34), or with fresh semen extended with a semi skimmed milk (n = 45) were used. The AI success rate was determined with the raw and the extended fresh semen. Results showed that the AI success rate decreased with the time interval (p < 0.05). There was no difference between AI success rates founded in raw and extended semen with the AI doses of 2 or 3 billions of spermatozoa. This study showed that the AI success rate was affected by the time interval between semen collection and AI. It was recommend to practice AI in Arab mares with fresh semen in the time interval 0-10 after semen collection.
Semen collection
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<i>Objective:</i> To compare reactive oxygen species (ROS) and antioxidants in internal spermatic vein tissue of men with varicocele and a control group with inguinal hernia. Also to compare the levels of oxidants and antioxidants in infertile and fertile men with varicocele. <i>Patients and Methods:</i> 48 varicocele patients and 12 non-varicocele inguinal hernia patients participated in this study. The varicocele group was again divided into two groups – fertile men with varicocele and infertile men with varicocele. Internal spermatic vein tissue samples were obtained. The level of the malondialdehyde (MDA), an indicator of oxidative stress, and the activities of antioxidant enzymes (defense systems) against oxidative stress such as superoxide dismutase (SOD) and catalase (CAT) were estimated in these tissue samples. <i>Results:</i> The mean level of MDA in the varicocele group was significantly higher than in the hernia group, whereas the levels of antioxidants (SOD and CAT) were significantly lower in the varicocele group than in the hernia group. When compared with the subgroups of the varicocele group, the MDA levels and SOD and CAT activities were significantly higher in the infertile varicocele group than in the fertile varicocele group. <i>Conclusions:</i> Antioxidant enzyme levels generally decrease due to a high consumption in varicocele patients. On the contrary, in our study both MDA and antioxidant enzymes increased in the internal spermatic venous wall of infertile varicocele patients. This situation may be explained by an adaptation against oxidative stress in varicocele, which could be defined as a chronic process.
Malondialdehyde
Spermatic Vein
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Mean platelet volume
Testicular volume
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Objective To discuss the relationship of left renal vein entrapment syndrome(LRVES)and varicocele.Methods The Color Doppler Flow Imaging(CDFI) was used to diagnosed the LRVES and varicocele.119 patients were diagnosed varicocele.And 15 of them were also diagnosed LRVES.The data was analysed to find the relation between LRVES and the varicocele patients.Results LRVES mostly occur in left varicocele patients,more than the both side varicocele patients.More severe varicocele patients(grade 3),the greater chance to occur LRVES.Conclusions Left rena1 vein entrapment is one of the most important factors in 1eft varicocele.CDFI should be used on severe left varicocele patients to find out if LRVES combined with.
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