scholarly journals Factors Influencing the Popularity of Artificial Insemination of Mares in Europe

Animals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 460 ◽  
Author(s):  
Alicja Kowalczyk ◽  
Ewa Czerniawska-Piątkowska ◽  
Marian Kuczaj
Keyword(s):  
Artificial Insemination ◽  
Sperm Quality ◽  
World Market ◽  
Factors Affecting ◽  
Current State ◽  
Horse Breeding ◽  
Frozen Semen ◽  
The Common ◽  
State Of Research

The purpose of this review was to analyze factors affecting the popularity of artificial insemination of mares in Europe in the context of sperm quality. Taking into account the prices of stallion semen on the world market, efficiency is important for the profitability of its use in artificial insemination programs in Europe. To increase the efficiency of a semen insemination facility, it is necessary to correctly and objectively assess the quality of semen. The available range of tools allows an effective evaluation of the potential fertility of a stallion. For several years, artificial insemination programs in Europe have been gaining popularity. However, the frequency of chilled or frozen semen use is still quite low. This is mainly due to the common, negative opinion about the effectiveness of the use of packaged insemination doses as opposed to natural insemination. Unfortunately, the quality of the semen offered often deviates from expectations, which results in unsatisfactory (and therefore unprofitable) pregnancy rates. This review presents the popularity structure of chilled and frozen semen use in European horse breeding as well as the current state of research on the effectiveness of semen production technology. It is shown that the popularity of using chilled semen in the artificial insemination of mares in Europe has been gradually increasing in the group of sport mares, while in the group of breeding mares, in recent years, frozen semen has been gaining popularity. In the remaining group of mares (not classified as sport or breeding), insemination with chilled semen has been dominant.

scholarly journals Olfaction and Aging: A Review of the Current State of Research and Future Directions

i-Perception ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 204166952110203
Author(s):  
Jonas K. Olofsson ◽  
Ingrid Ekström ◽  
Maria Larsson ◽  
Steven Nordin
Keyword(s):  
Warning Signs ◽  
Future Directions ◽  
Current State ◽  
Challenging Tasks ◽  
State Of Research ◽  
To Come ◽  
Health Cognition ◽  
Olfactory Abilities ◽  
And Training

Olfaction, the sense of smell, is characterized by a notable age-dependency such that aging individuals are more likely to have poor olfactory abilities. These impairments are considered to be mostly irreversible and as having potentially profound effects on quality of life and food behavior, as well as constituting warning signs of mortality, cognitive dysfunction, and dementia. Here, we review the current state of research on aging and olfaction, focusing on five topics which we regard to be of particular relevance for the field: nutrition and health, cognition and dementia, mortality, environment and genetics, and training-based enhancement. Under each of these headlines, we provide a state-of-the-art overview and discuss gaps in our knowledge which might be filled by further research. Understanding how olfactory abilities are diminished in aging, and how they may be alleviated or recovered, involves a set of challenging tasks for researchers in the years to come.

scholarly journals Exploration of Factors Affecting Learners' Motivation in E-learning

2019 ◽  
pp. 1269-1275
Author(s):  
Shubham Dubey ◽  
Biro Piroska ◽  
Manjulata Gautam
Keyword(s):  
Dropping Out ◽  
Individual Factor ◽  
Factors Affecting ◽  
E Learning ◽  
Learning Platforms ◽  
The Common ◽  
Khan Academy ◽  
Future Work ◽  
The Impact

The world is changing rapidly, so is academics. E-learning has altered the area of academics and education. ICT enabled learning has given ideal services to students by providing any type of content on demand which is proportional to the performance of students. The concentration of learner has been found instinctive; thus there is a need of engaging mind towards course progress with its entirety till the objectives of the course will be achieved. There are several e-learning platforms available as EdX, Udacity, Khan Academy, Alison those have a number of learners registered for various courses. Studies suggest that these platforms suffer from the common problem of learners’ dropping out. Investigations also claim early leaving rate is increasing due to lack of quality of content, distraction factors, learners’ mind change, outdated and succinct information, and some more detraction factors. These issues have been observed on the basis of early leaving rates in various MOOCs. Thus there is a mammoth scope for minimizing the impact of these reasons on the learners’ mind. It can be achieved by identifying these factors affecting learners’ motivation during the course. This study is aiming on identifying these factors. The approach is to explore some certain keywords on previous literature (total 41) and then calculating their frequencies and co-factors associated with them. Both grouped factors contribution and individual factor contribution have been taken care. The study gives a direction for future work towards overcoming these actor and engaging learners in ICT enabled learning.

scholarly journals Sperm protein markers for Holstein bull fertility at National Artificial Insemination Centers in Indonesia

2020 ◽  
Vol 13 (5) ◽  
pp. 947-955
Author(s):  
Zulfi Nur Amrina Rosyada ◽  
Mokhamad Fakhrul Ulum ◽  
Ligaya I. T. A. Tumbelaka ◽  
Bambang Purwantara
Keyword(s):  
Artificial Insemination ◽  
Sperm Quality ◽  
High Fertility ◽  
Fertility Level ◽  
Sperm Protein ◽  
Sperm Proteins ◽  
Frozen Semen ◽  
Sds Page ◽  
Microscopic Evaluation ◽  
Holstein Bulls

Background and Aim: Holstein cows and heifers are widely bred in Indonesia by artificial insemination (AI) to increase population and milk production. Sperm fertility is modulated by genetic factors, but the analysis of sperm quality is still based on macro- and microscopic characteristics. This study aimed to analyze both sperm quality and proteins of Holstein bulls at different fertility levels. Materials and Methods: The frozen semen samples were collected from the Indonesia National AI Center. They were classified based on the reproductive efficiency data and were grouped into high fertile (HF) and low fertile (LF). Sperm qualities were evaluated by microscopic evaluation. The Holstein sperm proteins were extracted using phenylmethanesulfonyl fluoride as a protease inhibitor and the benzidine detergent extraction method. Discontinuous sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) was conducted to analyze the molecular weights (MWs) of the sperm proteins. The data obtained were analyzed by a t-test using the one-factor bull fertility level, and Spearman's correlation analysis was used to identify the correlation between the sperm microscopic evaluation parameters and protein bands. Results: The sperm motility post-freeze thawing was not significantly different between the HF and LF (p>0.05). The HF level had a higher percentage of viability, intact plasma membrane integrity, and intact acrosomes than the LF (p<0.05). Five protein bands were found in the SDS-PAGE of sperm proteins of Holstein bulls with different concentrations. Sperm proteins with MWs of 17.51 kDa, 14.87 kDa, 33.71 kDa, and 41.97 kDa were abundant in the Holstein bulls with an HF level, while 55 kDa proteins were abundant in the LF level of Holstein bulls. The sperm of Holstein bulls in the HF level contained proteins of about 33.71 kDa that were not detected in the LF. Conclusion: The sperm protein with a molecular weight of 33.71 kDa was predicted to be a specific protein biomarker that influences bull fertility. Sperm fertilization abilities were also determined by the sperm proteins, the morphology of sperm acrosomes, and the quality of plasma membranes. This method can be used to select bulls with high fertility to increase the population of Holstein bulls.

scholarly journals Utilization Of Frozen Goat Semen With Addition Sweet Orange Essential Oil To Improve Genetic Quality in Ujung Teran Village

2019 ◽  
Vol 1 (2) ◽  
pp. 170-174
Author(s):  
Sukma Aditya Sitepu ◽  
Julia Marisa
Keyword(s):  
Essential Oil ◽  
Community Service ◽  
Artificial Insemination ◽  
Sweet Orange ◽  
Genetic Quality ◽  
Know How ◽  
Frozen Semen ◽  
And Training ◽  
Orange Essential Oil

One of the causes of underdeveloped goats is low genetic quality. The way that can be done to improve the genetic quality of goats is to do cross-breeding with superior goats through Artificial Insemination. The community service aims to increase the knowledge of goat farmers in Ujung Teran Village, Langkat Regency on how to make goat frozen semen using tris yolk extender plus sweet orange essential oil for Artificial Insemination program along with the benefits that can be obtained. The method of service is by giving lectures and training to goat farmers. The results obtained from the implementation of this program are that farmers know how to make frozen semen of goat using sweet orange essential oil on the tris yolk extender and are willing to make Artificial Insemination in their goat cattle.

scholarly journals Morphometry of Male Reproductive Organ and Sperm Evaluation of Belgian Blue Crossbreed Cattle as a Candidate of Superior Bull

2020 ◽  
Vol 44 (4) ◽  
Author(s):  
Riyan Nugroho Aji ◽  
Panjono Panjono ◽  
Ali Agus ◽  
Budi Prasetyo Widyobroto ◽  
Tety Hartatik ◽  
...  
Keyword(s):  
Sperm Quality ◽  
Descriptive Analysis ◽  
Reproductive Organs ◽  
Reproductive Organ ◽  
Genital Organ ◽  
General Physical Examination ◽  
Frozen Semen ◽  
General Physical ◽  
Ib Method

The purpose of this study was to observe the size of reproductive organ and to evaluate the sperm quality of Belgian Blue (BB) crossbreed cattle. This cattle are the crossbreeding result between a female Brahman Cross (BX) cattle inseminated with frozen semen from pure male BB cattle, by Artificial Insemination (IB) method, as a candidate of superior bull. The samples of this study were 2.5 years old (BB1), (BB2), and (BB3) crossbreed cattle. Its process involved general physical examination, genital organ inspection, sperm production, and quality assessment. The data obtained were analyzed through descriptive analysis. The results of this study were the three BB crossbred cattle showed the good appearance of normal reproductive organs with scrotum circumferences of each bull were 40.2 cm, 38.6 cm, and 39.8 cm respectively, and sperm quality of the good and the normal motility values of each bull were 82%, 81% and 80%, viability 84%, 83%, and 86%, and the sperm concentrations of each bull were 2.218 million/ml, 1.986 million/ml and 2.120 million/ml respectively. As a result, it could be concluded that those three BB crossbreed cattle are suitable for being used as a superior bull.

scholarly journals Artificial insemination and cryopreservation of boar semen: current state and problematics

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Joaquim Moreira da Silva
Keyword(s):  
Artificial Insemination ◽  
Cold Shock ◽  
Current Status ◽  
Freezing And Thawing ◽  
Swine Industry ◽  
Current State ◽  
Boar Semen ◽  
The Many ◽  
Cryopreservation Method

 Commercial artificial insemination with boar semen still prefers the usage of refrigerated semen up to 5 days over frozen-thawed, to date. This is because of the uneconomical properties of frozen-thawed boar semen, such as low motility, viability, fertility rates and the need for higher semen doses, because of the decreased quality after cryopreservation. Since boar semen is highly susceptive to cold shock damage, the invention of a successful cryopreservation method would be greatly beneficial for the swine industry. This review briefly focuses on the many factors that influence the quality of frozen-thawed boar semen, including the different compositions of extenders, comparison of commercial extenders, freezing and thawing methods (temperature and duration). It could be concluded from the present review that optimum freezing/thawing protocol for swine is not standardized, so far being the current status still considered poor-to-fair. 

scholarly journals The Scarcity of Literature on the Psychological, Social, and Emotional Effects of Gastroparesis in Children

Children ◽  
2020 ◽  
Vol 7 (9) ◽  
pp. 115
Author(s):  
Tiffany H. Taft ◽  
Bethany Doerfler ◽  
Emily Edlynn ◽  
Linda Nguyen
Keyword(s):  
Pediatric Patients ◽  
Significant Risk ◽  
Future Research ◽  
Social And Emotional ◽  
Current State ◽  
Increased Risk ◽  
Psychosocial Impacts ◽  
Future Research Directions ◽  
State Of Research

Gastroparesis (GP) is a chronic, gastric dysmotility disorder with significant morbidity and mortality. The hallmark of GP is the delayed emptying of the contents of the stomach in the absence of any mechanical obstruction. Patients most commonly report chronic symptoms of nausea, vomiting, feeling full quickly when eating, bloating, and abdominal pain. Treatments are limited with relatively poor efficacy. As such, children with GP are at significant risk for the development of psychological co-morbidities. In this paper, we provide a topical review of the scientific literature on the psychological, social, and emotional impacts of gastroparesis in pediatric patients. We aim to document the current state of research, identify gaps in our knowledge with appropriate recommendations for future research directions, and highlight the unique challenges pediatric patients with GP and their families may face as they manage this disease. Based on the current review, research into the psychosocial impacts in children with GP is essentially non-existent. However, when considering research in children with other chronic digestive diseases, children with GP are likely to face multiple psychosocial challenges, including increased risk for anxiety and depression, stigma, and reduced quality of life. These significant gaps in the current understanding of effects of GP across domains of childhood functioning allow for ample opportunities for future studies to address psychosocial outcomes.

scholarly journals Assessing the Urban Design Quality of Turkish Cities

2020 ◽  
Author(s):  
Umut Doğan
Keyword(s):  
Urban Design ◽  
Urban Spaces ◽  
Design Quality ◽  
Current State ◽  
Relevant Role ◽  
Planning Processes ◽  
The Common ◽  
Mcdm Method ◽  
Design Aspect

The common characteristic of qualified urban spaces is that they offer an environment enriched with livability criteria, protecting and maintaining the elements of identity and offering flexibility and diversity compatible with the current conditions. Nowadays, the first condition of creating such qualified/successful urban spaces is to reflect the “urban design” processes on the urban spaces. Therefore, the present study aims to discuss the “urban design” quality (the level of success) of the Turkish cities shaped within the scope of urban plans. This discussion was performed using the urban design criteria determining and assessing the actors, which play an effective and relevant role in urban design and planning processes. The fuzzy multi-criteria decision-making (MCDM) method was used. By making use of the results of the present study, the conditions influencing the urban design aspect were re-discussed via current state analysis, and the foundation for a general assessment about the urban design quality of Turkish cities was established.

scholarly journals Effect of two pre-freezing methods on quality of sexed semen in Ettawa Grade goat

2018 ◽  
Vol 43 (4) ◽  
pp. 405
Author(s):  
Y.S. Ondho ◽  
S.B. Udrayana
Keyword(s):  
Liquid Nitrogen ◽  
Operating Procedure ◽  
Artificial Insemination ◽  
Standard Operating Procedure ◽  
Bottom Layer ◽  
Frozen Semen ◽  
Standard Operating ◽  
Non Linear ◽  
Sexed Semen

The aim of this study was to determine the influence of pre-freezing different procedures to the quality of Ettawa Grade goat frozen semen-sexing. The research material was semen sexing consisted of 2 layers those were top layer and bottom layer. The quality of frozen semen sexing was observed by comparing the pre-freezing technique (factory standard operating procedure: FSOP) according to the  Artificial Insemination Center operating procedure (pre-freezing by placing the straw of semen for about 4 cm above liquid nitrogen for 9 minutes) with the modification procedure (MP), pre-freezing by placing the straw of semen 16 cm above liquid nitrogen for 9 minutes and then it was lowered to 4 cm above liquid nitrogen for 9 minutes during the pre-freezing phase. The parameters observed were motility, progressive motility, hyperactivation, and sperm linearity. Data were analyzed using Student's t-test.The results of this study indicated that the quality of sexed-semen in the standard operating procedures of frozen semen compared to the treatment of modifications to the top and bottom layers were motility at the top layer (46.06 ± 7.52% vs 55.6 ± 7.78%) and bottom layer (36.82 ± 6.49% vs. 41.47 ± 6.57%); progressive top layer (16.34 ± 4.27 vs. 32.83 ± 5.9%) and bottom layer 15.97 ± 2.72% vs. 19.79 ± 3.97%); hyperactivity in the top layer (0.81 ± 0.6% vs 4.09 ± 1.98%) and the bottom layer (0.71 ± 0.68% vs. 1.50 ± 1.05%); linearity consisted of linear and non-linear, the top layer (12.19 ± 2.94 vs. 20.52 ± 3.97%) and bottom layer (12.32 ± 2.63 vs 14.70 ± 2.6); while non-linear in top layer (0.14 ± 0.2 vs 0.68 ± 0.85%) and bottom layer (0.4 ± 0.13% vs 0.34 ± 0.4%). The conclusions in this study indicated that the quality of the frozen sexed-semen that has processed by pre-freezing modification technique was better than the frozen sexed-semen obtained from the Artificial Insemination Center Standard Operating procedure.

scholarly journals HUMAN SPERM COUNT

2015 ◽  
Vol 22 (01) ◽  
pp. 013-017
Author(s):  
Jahangir Sultan ◽  
Kokab Kokab ◽  
Muneer Ahmed
Keyword(s):  
Environmental Factors ◽  
Human Activity ◽  
Semen Quality ◽  
Sperm Quality ◽  
Sperm Count ◽  
Human Sperm ◽  
Factors Affecting ◽  
Parental Exposure ◽  
The World

Objectives: Reports from many parts of the world suggest that chemical andphysical agents in the environment, introduced and spread by human activity may affect fertilityin men. The objective of this article is to highlight the environmental factors and their associationto male sperm quality and count as well. Materials and Methods: This study focusing onexposure to environmental factors affecting the semen quality of the workers working in differentfactories for a period of 5 to 7 years in Lahore. Results: The results from this study suggest thatthere are many environmental factors which may affect semen quality and sperm count. It isnecessary to prevent parental exposure to the agents associated with those hazards.

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