PSV-5 Effect of Breed and Barn Location on Semen Quality at an Artificial Insemination Facility

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 210-210
Author(s):  
Ashley R Hartman ◽  
Madison L Butler ◽  
Esther D McCabe ◽  
Megan M Rolf ◽  
Robert L Weaber ◽  
...  
Keyword(s):  
Artificial Insemination ◽  
Fixed Effects ◽  
Regression Models ◽  
Semen Quality ◽  
Average Concentration ◽  
Semen Collection ◽  
Average Production ◽  
Breed Differences ◽  
Overall Efficiency ◽  
Red Angus

Abstract A better understanding of the factors that influence collection and semen quality for AI sires is needed. Our objectives were to evaluate the effect of breed and environmental factors on semen characteristics from 49,086 ejaculates analyzed by a single technician at a beef semen collection facility. Bulls were housed in one of 5 barns based on health testing and purpose of semen collection. Multiple ejaculate characteristics were evaluated using regression models; fixed effects included breed, age, and barn. Ejaculate volume differed (P < 0.001) between Angus (8.5 ml) and Horned Hereford (7.5 ml). Concentration of spermatozoa was lower (P < 0.001) for Angus compared with Simmental, Charolais, and Horned Hereford (1009, 1100, 1252, and 1197 x 106/ml, respectively). Horned Hereford had greater (P < 0.01) concentration of spermatozoa compared with Red Angus (1197 and 1046 x 106/ml, respectively). Simmental had greater (P < 0.01) pre-freeze motility when compared with Angus, Red Angus, and Horned Hereford (54, 50, 49 and 49%, respectively). Average production of 0.5 CC frozen straws per collection was greater (P < 0.001) for Simmental (244) when compared with Red Angus (205) and Angus (223). Pre-freeze motility (% motile) varied from 48% to 53% between the five barns (P < 0.001). The average concentration of spermatozoa varied from 1000 (x 106/ml) to 1155 (x 106/ml), with Barn 1 producing the lowest per ejaculate (P < 0.001). Bulls in Barn 1 produced a greater amount (P < 0.001) of primary abnormalities than Barn 4 and more (P < 0.001) secondary abnormalities than Barn 3. Overall, Simmental, when compared with Angus bulls, produced the greatest number of straws per collection, with the highest pre-freeze motility. Recognizing breed differences and the effect of barn location may help improve overall efficiency, and producer expectations of semen collection at this facility.

scholarly journals A comparative study of boar semen extenders with different proposed preservation times and their effect on semen quality and fertility

2016 ◽  
Vol 85 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Marina Anastasia Karageorgiou ◽  
Georgios Tsousis ◽  
Constantin M. Boscos ◽  
Eleni D. Tzika ◽  
Panagiotis D. Tassis ◽  
...  
Keyword(s):  
Artificial Insemination ◽  
Semen Quality ◽  
Medium Term ◽  
Semen Collection ◽  
Chromatin Integrity ◽  
Boar Semen ◽  
Short Time

The present study compared the quality characteristics of boar semen diluted with three extenders of different proposed preservation times (short-term, medium-term and long-term). A part of extended semen was used for artificial insemination on the farm (30 sows/extender), while the remaining part was stored for three days (16–18 °C). Stored and used semen was also laboratory assessed at insemination time, on days 1 and 2 after the collection (day 0). The long-term extender was used for a short time, within 2 days from semen collection, with the aim to investigate a possible advantage over the others regarding laboratory or farm fertility indicators at the beginning of the preservation time. Viability, motility, kinetic indicators, morphology and DNA fragmentation were estimated. The results showed reduced viability, higher values for most of the kinetics, and higher immotile spermatozoa from day 1 to day 2 in all extenders; however, the long-term extender was superior compared to the other two on both days. With regard to morphology and chromatin integrity, the percentage of abnormal and fragmented spermatozoa increased on day 2 compared to day 1 for all of the extenders. However, based on the farrowing rate and the number of piglets born alive after the application of conventional artificial insemination within 2 days from semen collection/dilution, it was found that the medium-term diluents were more effective. In conclusion, it seems that the in vivo fertilization process involves more factors than simply the quality of laboratory evaluated sperm indicators, warranting further research.

scholarly journals The effect of Foot and Mouth disease on reproductive performance of Holstein bulls in Artificial Insemination Center of Iraq

2012 ◽  
Vol 36 (1) ◽  
pp. 1-7
Author(s):  
AL-Badry K. I.
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Semen Quality ◽  
Sperm Concentration ◽  
Foot And Mouth Disease ◽  
Reproductive Efficiency ◽  
Semen Collection ◽  
Semen Volume ◽  
Holstein Bulls ◽  
Disease Effect

This study was carried out in Artificial Insemination Center of Iraq to revealed FMD disease effect on some seminal attributer parameters of 14 imported Holstein bulls divided to three groups according to different reproductive efficiency (four High, five medium and five weak). Results showed that FMD disease had significant (P < 0.05) adverse effect on most seminal attributer parameters, mass, individual motility and sperm concentration / ml during post disease in first of two, four, all months of high, medium and weak semen quality bulls respectively .but semen volume didn’t influenced significantly with this disease. So semen collection should be suspended until resume normal fertility of sperm, after two, four month of high and medium bulls respectively, and must be revealed weak bulls when disease happen to avoid the failure of conception from artificial insemination and there is no economic benefit to use or keep weak bulls

The effect of semen collection frequency and food intake on semen production in breeding boars

1991 ◽  
Vol 52 (2) ◽  
pp. 355-360 ◽  
Author(s):  
B. Kemp ◽  
G. C. M. Barker ◽  
L. A. den Hartog ◽  
M. W. A. Verstegen
Keyword(s):  
Food Intake ◽  
Artificial Insemination ◽  
High Frequency ◽  
Semen Quality ◽  
Sperm Cells ◽  
Feeding Level ◽  
Semen Collection ◽  
The Mean ◽  
Effect Of Feeding

ABSTRACTAn experiment was conducted to study the effect of feeding level and semen collection frequency on semen quantity and quality of 62 Yorkshire boars at two artificial insemination centres during 10 successive periods of 2 weeks. The experiment had a 2 × 2 factorial design with two feeding levels (2·75 and 3·5 kg/day) and two semen collection frequencies (three and five times in 2 weeks).In the first 2-week period boars on the high frequency semen collection scheme produced 94 × 109 sperm cells more than boars on the low scheme. In periods 2 to 10 the mean difference was only 18 × 109 sperm cells. Boars on the high feeding level produced 32 × 109 sperm cells more per 2-week period than the boars on the low feeding level (P < 0·05). Boars at the high collection frequency and the high feeding level tended to produce a higher number of sperm cells during periods 2 to 10 than the boars on the high semen collection frequency and the low feeding level (P > 0·05). No effects of food intake or semen collection frequency on semen quality were found.

scholarly journals 26 Factors effecting collection characteristics in beef bulls at an artificial insemination facility

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 111-112
Author(s):  
Ashley Hartman ◽  
Madison L Butler ◽  
Esther D McCabe ◽  
Nicole Goodenow ◽  
Sharon Tucker ◽  
...  
Keyword(s):  
Fixed Effects ◽  
Regression Models ◽  
Genomic Information ◽  
High Demand ◽  
Collection Method ◽  
Service Unit ◽  
Semen Collection ◽  
Artificial Breeding ◽  
Multiple Regression Models ◽  
Artificial Vagina

Abstract Increased genomic information available for young bulls has decreased age at time of semen collection. Factors effecting collection characteristics include collection method (electro ejaculate (EE), or artificial vagina (AV), and the number of ejaculates collected. The objective of this study was to determine the effect of managerial factors on collection characteristics. From 2008 to 2018, 11,642 individual ejaculates were analyzed by a single technician at the Kansas Artificial Breeding Service Unit. Bulls that were not receptive to the AV after 3 or 4 attempts, were subject to EE. Collection characteristics were evaluated using multiple regression models; fixed effects included collection method, sequence of ejaculates collected per day, and were evaluated for their impact on collection characteristics. Progressive motility before freezing was greater (P&lt; 0.0001) for bulls collected with EE compared to AV. Ejaculate volume for EE collections was greater (P&lt; 0.0001) than those collected with AV. Percent spermatozoa with secondary abnormalities was greater (P&lt; 0.05) for bulls collected with EE compared to AV. Concentration of spermatozoa per mL was less (P&lt; 0.0001) for bulls collected with an EE (514 x106) compared to AV (617 x106). Total number of straws frozen per ejaculate were less (P&lt; 0.001) for bulls collected with EE (94) compared to AV (108). The number of ejaculates collected per day was significant for the percent of spermatozoa with secondary abnormalities (P&lt; 0.001). As ejaculate number per day increased, the concentration of spermatozoa decreased (713, 580, 535, and 434 x 106 per ml respectively; P&lt; 0.0001) and the number of straws frozen per ejaculate decreased (123, 107, 93, and 82 respectively; P &lt; 0.0001). In conclusion, AV collections resulted in a higher number of straws frozen. The method of collection could cause a significant impact when collecting young high demand bulls.

scholarly journals The effect of Foot and Mouth disease on reproductive performance of Holstein bulls in Artificial Insemination Center of Iraq

2012 ◽  
Vol 36 (1) ◽  
pp. 1-7
Author(s):  
AL-Badry K. I.
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Semen Quality ◽  
Sperm Concentration ◽  
Foot And Mouth Disease ◽  
Reproductive Efficiency ◽  
Semen Collection ◽  
Semen Volume ◽  
Holstein Bulls ◽  
Disease Effect

This study was carried out in Artificial Insemination Center of Iraq to revealed FMD disease effect on some seminal attributer parameters of 14 imported Holstein bulls divided to three groups according to different reproductive efficiency (four High, five medium and five weak). Results showed that FMD disease had significant (P < 0.05) adverse effect on most seminal attributer parameters, mass, individual motility and sperm concentration / ml during post disease in first of two, four, all months of high, medium and weak semen quality bulls respectively .but semen volume didn’t influenced significantly with this disease. So semen collection should be suspended until resume normal fertility of sperm, after two, four month of high and medium bulls respectively, and must be revealed weak bulls when disease happen to avoid the failure of conception from artificial insemination and there is no economic benefit to use or keep weak bulls.

scholarly journals The Differential Effects of Caregiving Intensity on Overnight Hospitalization in the Previous 2 Years

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 76-76
Author(s):  
Kylie Meyer ◽  
Zachary Gassoumis ◽  
Kathleen Wilber
Keyword(s):  
Health Services ◽  
Fixed Effects ◽  
Regression Models ◽  
P Value ◽  
Logistic Regression Models ◽  
Spousal Caregiving ◽  
Health Insurance Status ◽  
Race Ethnicity ◽  
Self Assessed Health ◽  
Retirement Study

Abstract Caregiving for a spouse is considered a major stressor many Americans will encounter during their lifetimes. Although most studies indicate caregiving is associated with experiencing diminished health outcomes, little is known about how this role affects caregivers’ use of acute health services. To understand how spousal caregiving affects the use of acute health services, we use data from the Health and Retirement Study. We apply fixed effects (FE) logistic regression models to examine odds of experiencing an overnight hospitalization in the previous two years according to caregiving status, intensity, and changes in caregiving status and intensity. Models controlled for caregiver gender, age, race, ethnicity, educational attainment, health insurance status, the number of household residents, and self-assessed health. Overall, caregivers were no more likely to experience an overnight hospitalization compared to non-caregivers (OR 0.92; CI 0.84 to 1.00; p-value=0.057). However, effects varied according to the intensity of caregiving and the time spent in this role. Compared to non-caregivers, for example, spouses who provided care to someone with no need for assistance with activities of daily living had lower odds of experiencing a hospitalization (OR 0.77; CI 0.66 to 0.89). In contrast, caregivers who provided care to someone with dementia for 4 to &lt;6 years had 3.29 times the odds of experiencing an overnight hospitalization (CI 1.04 to 10.38; p-value=0.042). Findings indicate that, although caregivers overall appear to use acute health services about as much as non-caregivers, large differences exist between caregivers. Results emphasize the importance of recognizing diversity within caregiving experiences.

Semen quality and interval to sterility in tom cats treated with a 9.4 mg deslorelin implant

2016 ◽  
Vol 19 (2) ◽  
pp. 194-199 ◽  
Author(s):  
Stefano Romagnoli ◽  
Anna Baldan ◽  
Camilla Righetti ◽  
Chiara Milani ◽  
Antonio Mollo ◽  
...  
Keyword(s):  
Intramuscular Injection ◽  
Healthy Adult ◽  
Semen Quality ◽  
Serum Testosterone ◽  
Reproductive Behaviour ◽  
Gonadotropin Releasing Hormone ◽  
Gnrh Agonists ◽  
Progressive Motility ◽  
Semen Collection ◽  
Very High

Objectives Gonadotropin-releasing hormone (GnRH) agonists like deslorelin are being increasingly used in tom cats for their efficacy in controlling reproductive behaviour and fertility. Deslorelin implants have been widely available in Europe since 2008. Little, if anything, is known about the interval between treatment and onset of sterility, as well as semen quality, after treatment in tom cats. The purpose of this study was to investigate semen quality and interval to sterility in tom cats treated with a 9.4 mg deslorelin implant. Methods Fifteen healthy adult tom cats were treated with a 9.4 mg deslorelin implant (Suprelorin 12). For each cat, semen collection and a GnRH stimulation test (intramuscular administration of 50 μg gonadorelin [Fertagyl], followed by blood sampling 1 h later, to assay serum testosterone) were performed on the first consultation and then repeated every 15 days until complete sterility was achieved. Semen collection was performed by introducing a 14 cm, open-end feline catheter (Argyle) 9 cm into the distal urethra 10 mins after sedation by intramuscular injection of 100 μg/kg medetomidine (Domitor). Results Semen collection was not successful in all cats at each attempt. In the first month after treatment, the semen of only four cats could be evaluated, while the semen of eight cats could be evaluated during the second and third months of the study. Semen quality (ejaculate volume, progressive motility and morphological abnormalities) improved slightly during the first 19–25 days in 2/4 cats, and in 1/4 cats motility was still very high (80%) 25 days post-treatment (PT), but we have no data regarding fertility prior to treatment in this cat. The last cat never produced spermatozoa. Subsequently, semen quality gradually worsened in all cats from 30 days onwards. At 70 days PT, one cat was still potentially fertile. After 72 days all cats were sterile. Conclusions and relevance Semen quality increased slightly in treated cats during the first month after treatment, and then gradually decreased over the following months. Complete sterility was reached within 40–72 days following implantation.

Understanding Charter School Leaders’ Perceptions of Competition in Arizona

2021 ◽  
pp. 0013161X2110373
Author(s):  
Benjamin Creed ◽  
Huriya Jabbar ◽  
Michael Scott
Keyword(s):  
Logistic Regression ◽  
School Choice ◽  
Charter School ◽  
Fixed Effects ◽  
Regression Models ◽  
School Leaders ◽  
State Level ◽  
Local Market ◽  
School Practices ◽  
Logistic Regression Models

Purpose: School choice policies are expected to generate competition leading to improvement in school practices. However, little is known about how competition operates in public education—particularly in charter schools. This paper examines charter-school leaders’ competitive perception formation and the actions taken in response to competition. Research Methods: Using Arizona charter-school leaders’ responses to an original survey, Arizona Department of Education data, and the Common Core of Data, we examined the factors predicting the labeling of a school as a competitor. We estimated fixed effects logistic regression models which examine factors predicting the labeling of competitor schools and of top competitors. We used logistic regression models to understand charter-school leaders’ responses to competition. Findings: We find charter-school leaders in Arizona perceived at least some competition with other schools, and their perceptions vary by urbanicity. While distance between schools mattered generally for labeling a school as a competitor, distance did not factor into labeling “top competitor” schools. Student outcomes did not predict competition between schools, but student demographics were associated with labeling a school a competitor. Charter-school leaders responded to competition through changes in outreach and advertising rather than curriculum and instruction. Competitive responses were related to the respondent school’s quality and the level of perceived competition. Implications for Research and Practice: We found charter-school leaders perceive competition and respond by changing school practices. Responses typically focus on marketing activities over productive responses. The novel state-level analysis allows us to test the effects of local market conditions typically absent in the literature.

Semen Viability Properties of Sexually Stimulated Boars on the Fertilization Capacity of Artificially Inseminated Large White Sows

2021 ◽  
Author(s):  
Tshepo Teele
Keyword(s):  
Litter Size ◽  
Artificial Insemination ◽  
Practical Method ◽  
Return Rate ◽  
Practical Significance ◽  
Large White ◽  
Sexual Stimulation ◽  
Semen Collection ◽  
Fertilization Capacity ◽  
Farrowing Rate

Background: This study aimed to investigate the influences of sexual preparation on the effects of boars’ semen viability on the fertilization capacity of artificially inseminated sows. After all, boar sires more pigs than farrowed by a sow which the boar has been mated to improve reproductive parameters in response to AI. Methods: The semen viability of boars were studied during various sexual stimulations and analyzed during the study period. Sperm rich fractions were collected and separated at every level of sexual stimulation during the morning (08:30) and the afternoon (14:30) hours, respectively. Artificial insemination was performed following three levels of sexual preparations of boars (0 minutes of sexual restraint (MSR), 5 MSR and 10 MSR) before semen collection. Receptive sows were inseminated and evaluated for fertility traits using non-return rate, farrowing rate and litter size. Result: The non-return rate was recorded as a percentage of sows conceived after insemination over the total number of sows inseminated. The farrowing rate was recorded as a percentage of sows that farrows over the number of sows conceived and litter size as several live piglets per sow. Sexual desire was influenced by sexual preparations and significantly influenced the fertility of the artificially inseminated sows. This study is of practical significance to the animal breeder mainly because boars have greater influence than sows on the average litter size and live piglets. The study concludes that the use of at least 5 to 10 minutes of sexual restraint during the afternoon periods prior to semen collection and artificial insemination is found to be a practical method for optimizing sperm viability and fertility of sows in the intensive system.

The progeny testing of dairy bulls at different levels of production

1956 ◽  
Vol 47 (4) ◽  
pp. 367-375 ◽  
Author(s):  
I. L. Mason ◽  
Alan Robertson
Keyword(s):  
Artificial Insemination ◽  
Coefficient Of Variation ◽  
Genetic Variance ◽  
Comparison Method ◽  
Breeding Value ◽  
Progeny Testing ◽  
Average Yield ◽  
Average Production ◽  
Dairy Bulls ◽  
Different Levels

1. An analysis has been made of milk records from 13,000 cows bred by artificial insemination in Denmark.2. The herds were divided into three equal groups on the basis of their average production. The variance of yield within herds increased as the average yield increased, but the coefficient of variation declined slightly. The genetic variance was more than five times as large in the high-yielding herds than in the low, and correspondingly the heritabilities in low, medium and high herds were 0·05, 0·15 and 0·22 respectively. These were estimated from the variation observed between progeny groups of the same 152 bulls at each production level.3. No evidence was obtained of any sire-herd interaction for yield, either within or between management levels. The true ranking of bulls for breeding value was apparently the same at all levels.4. The heritability of fat content in the three groups was 0·27, 0·47 and 0·49 respectively, and no evidence of sire-herd interaction was found.5. The contemporary comparison method of assessing A.I. bulls for yield was found to have the accuracy expected in theory.6. These results are discussed in relation to those of other workers with which there are some discrepancies. On our results, a policy of choosing bulls on the basis of their daughters' performance in high-yielding herds should be the most satisfactory way of progeny-testing bulls used in artificial insemination.

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