Results 191 to 200 of about 6,740,526 (228)

Development of predictive models for boar semen quality

Theriogenology, 2019
In this study a prognosis model is developed that predicts sperm quality characteristics based on external factors such as barn climate conditions, seasonality, semen collection frequency, age and breed of artificial insemination (AI) boars. For this a k-fold cross validation framework is used to test the prediction accuracy of a wide range of ...
D A, Kuhlgatz, C, Kuhlgatz, M, Aepli, B, Schumann, R, Grossfeld, R, Bortfeldt, U, Jakop, M, Jung, M, Schulze   +8 more
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Effect of Dilution Temperature on Boar Semen Quality

Reproduction in Domestic Animals, 2011
ContentsAs boar semen is very sensitive to cold shock and changes in temperature during semen processing can have a profound impact on semen quality, the effect of the extender temperature at the time of dilution was investigated in a two‐step dilution protocol for boar semen being processed for liquid storage.
A, López Rodríguez, T, Rijsselaere, P, Vyt, A, Van Soom, D, Maes   +4 more
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Semen quality and fertilization ability of myostatin-knockout boars

Theriogenology, 2019
There is no data currently available on the semen quality and fertility of myostatin-knockout (MSTN-/-) boars. We showed that sexually mature adult homozygous MSTN mutant boars have an obvious "double muscling" phenotype, along with a MSTN-/- boar head, back, abdomen, eyes, and oral cavity.
Sheng-Zhong, Han, Song-Shan, Jin, Mei-Fu, Xuan, Qing, Guo, Zhao-Bo, Luo, Jun-Xia, Wang, Jin-Dan, Kang, Xi-Jun, Yin   +7 more
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Effects of Herbal Preparation on Libido and Semen Quality in Boars

Reproduction in Domestic Animals, 2010
ContentsThe objective of this study was to investigate the effects of a preparation from herbal extracts (PHE) on libido and semen quality in breeding artificial insemination boars. Ten fertile boars were divided into control and experimental groups according to significant difference of libido. There were no differences in semen quality between groups.
S, Frydrychová, L, Opletal, K, Macáková, A, Lustyková, M, Rozkot, J, Lipenský   +5 more
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Boar seminal plasma components and their relation with semen quality

Systems Biology in Reproductive Medicine, 2012
Select boar seminal plasma (SP) components and their relation to semen quality were investigated. Thirty nine boars from three artificial insemination (AI) centers were divided into group A (GA: > 80% normal sperm and >70% motility) and group B (GB: 
Alfonso, López Rodríguez, Tom, Rijsselaere, Josine, Beek, Philip, Vyt, Ann, Van Soom, Dominiek, Maes   +5 more
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Characterization of boar semen microbiome and association with sperm quality parameters

Journal of Animal Science, 2023
Abstract Elevated levels of bacteria within fresh extended boar semen are associated with decreased sperm longevity, therefore reducing the fertility of a semen dose. The objective of this study was to characterize the bacterial communities using 16S rRNA sequencing in freshly extended boar semen samples and relate the prevalence and ...
Brooke E, McAnally, Molly S, Smith, Jeffrey G, Wiegert, Vignesh, Palanisamy, Sapna, Chitlapilly Dass, Rebecca K, Poole   +5 more
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The effect of feeding level on semen quantity and quality of breeding boars

Animal Reproduction Science, 1989
Abstract An experiment was carried out to investigate the influence of feeding level on semen quantity and quality in breeding boars in two successive periods of 12 and 8 weeks. Forty-two Yorkshire boars (13 months old) were fed for 12 weeks ad libitum ( H =5.74 kg / day ), a medium feeding level ( M =3.62 kg/day) or a low feeding level ( L =1.92 kg/
Kemp, B., den Hartog, L.A., Grooten, H.J.G.   +2 more
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Evaluation of the effect of oxfendazole on sperm production and semen quality in boars

International Journal of Andrology, 1983
Twice the recommended dose of oxfendazole was given as a single dose to each of 6 boars. From these and 6 placebo treated boars of similar age semen was regularly collected both before and after the antihelminth treatment. Sperm production (volume and total number of spermatozoa) and semen quality (motility and morphology of spermatozoa) were examined ...
B, Larsson, M, Jernström
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Effects of 72?hour heat stress on semen quality in boars

International Journal of Biometeorology, 1970
Three sibling pairs of six-month old boars of each of four breeding groups (Yorkshire, Poland, China and the reciprocal crosses) were maintained in an area held at or below 21.5°C with a 12-hour daily light cycle. After a three month acclimation period, a randomly selected boar of each pair was subjected to 33°C, 50% RH for 72 hours.
J I, McNitt, N L, First
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Association of heat shock protein 70 with semen quality in boars

Animal Reproduction Science, 2000
This study attempted to clarify the relationship between the levels of 70kDa heat shock protein (HSP70) and semen quality in boars. Semen samples from 29 (13 Duroc, 9 Landrace, and 7 Yorkshire) boars (mean age=25.2+/-2.2 months) were examined. Three to four ejaculates per boar, collected during cool and hot seasons, were evaluated in terms of the sperm
S Y, Huang, Y H, Kuo, Y P, Lee, H L, Tsou, E C, Lin, C C, Ju, W C, Lee   +6 more
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