Testosterone Regulation of Sexual Reflexes in Spinal Male Rats

Science ◽  
1967 ◽  
Vol 155 (3767) ◽  
pp. 1283-1284 ◽  
Author(s):  
B. L. Hart
Keyword(s):  
Male Rats ◽  
Sexual Reflexes

scholarly journals Ejaculate quality is influenced by boar behaviour at the time of collection

2016 ◽  
Vol 73 (2) ◽  
pp. 240
Author(s):  
Vasile Miclea ◽  
Ilona Gyorgy ◽  
Ileana Miclea ◽  
Marius Zahan ◽  
Alexandru Nagy ◽  
...  
Keyword(s):  
Volume Concentration ◽  
Economic Effect ◽  
Positive Economic ◽  
Young Boars ◽  
Time Of Collection ◽  
Sexual Reflexes

Ejaculates were collected from the same boars twice a week, in spring during two years. Most animals had very good sexual reflexes and were scored as 5. They gave ejaculates which had good volume, concentration and motility and could be processed into the largest number of insemination doses. This had an obvious positive economic effect. Age influenced ejaculate quality in young boars, with the exception of a few animals in which sexual reflexes were diminished. Nevertheless, ejaculates had the necessary characteristics and could be processed.

scholarly journals Effects of alpha-2 adrenoceptor antagonists on the decline of sexual reflexes in dogs following ejaculation.

1994 ◽  
Vol 64 ◽  
pp. 357
Author(s):  
Akihiko Yonezawa ◽  
Shunsuke Kawamura ◽  
Ryuichiro Ando ◽  
Takeshi Tadano ◽  
Toshima Nobunaga ◽  
...  
Keyword(s):  
Sexual Reflexes

Sexual dysfunction in the diabetic BB/WOR rat: a role of central neuropathy

1997 ◽  
Vol 272 (1) ◽  
pp. R259-R267 ◽  
Author(s):  
K. T. McVary ◽  
C. H. Rathnau ◽  
K. E. McKenna
Keyword(s):  
Sexual Function ◽  
Diabetic Rats ◽  
Nerve Fibers ◽  
Diabetic Rat ◽  
Penile Erections ◽  
Reflex Testing ◽  
Diabetic Impotence ◽  
Central Neuropathy ◽  
Sexual Reflexes

The pathophysiological mechanisms of diabetic impotence remain obscure. We have presented an analysis of sexual function in a diabetic rat (BB/WOR) model characterized by diffuse neuropathic changes without a confounding vasculopathy that allows us to define the neural components of erectile failure. Copulatory behavioral testing demonstrated that diabetic males were severely impaired: the controls mounted three times more than the diabetics and had about one-half the latency to first mount. The diabetics had about one-fourth the number of intromissions and took nearly twice as long to achieve first ejaculation. The number of ejaculations was drastically reduced as well. We examined sexual reflexes in the anesthetized acutely spinalized rat. These experiments tested the integrity of spinal circuits controlling sexual function. Reflex testing demonstrated that spinal sexual reflexes were also severely impaired: the onset latency of reflexes was more than doubled, and the duration of reflexes was less than one-half. More than one-half of the diabetic rats showed no penile erections. Neural studies showed even more derangement in reflex measures in rats, without erection. Nerve conduction velocity experiments suggested a peripheral neuropathic change in hypogastric nerve and motor pudendal nerve fibers. These dysfunctional findings were seen without any androgen deficiency. These results indicate that diabetic impotence in this model reflects central and peripheral neuropathic disease processes.

Sexual reflexes in male and female rats

1988 ◽  
Vol 94 (3) ◽  
pp. 343-348 ◽  
Author(s):  
Sookja K. Chung ◽  
Kevin T. McVary ◽  
Kevin E. McKenna
Keyword(s):  
Female Rats ◽  
Male And Female ◽  
Male And Female Rats ◽  
Sexual Reflexes

Sexual reflexes of spinal male house mice

1980 ◽  
Vol 24 (3) ◽  
pp. 489-492 ◽  
Author(s):  
Benjamin D. Sachs
Keyword(s):  
House Mice ◽  
Male House ◽  
Sexual Reflexes

scholarly journals INFLUENCE OF BULL’S BODY TYPES AND MEAT FORMS EXPRESSION ON THEIR SEXUAL ACTIVITY

2021 ◽  
Vol 12 (1) ◽  
pp. 56-61
Author(s):  
A. M. Ugnivenko ◽  
L. A. Koropets
Keyword(s):  
Sexual Activity ◽  
Growth Index ◽  
Reproductive Capacity ◽  
Breeding Value ◽  
Average Score ◽  
Cattle Breeding ◽  
Beef Breed ◽  
Selection For ◽  
Meat Productivity ◽  
Sexual Reflexes

In beef cattle breeding, the reproductive capacity of bulls significantly affects the economic efficiency of production. Selection for the meat productivity can negatively affect the ability of bulls to reproduce, so it is necessary to consider the risks of such a connection when selecting them. The study determined the rate of manifestation of Ukrainian beef breed bulls sexual reflexes of different body types and severity of meat forms. According to the type of body structure of bulls divided into two groups: large (high and long-bodied) and compact (low and short-bodied). The distribution performed using the growth index. The severity of meat forms of bulls was determined at 15 months of age on a 60-point scale. The animals on meat forms divided into two groups compared with the average score of experimental bulls. The degree of sexual activity manifestation assessed by the duration of sexual reflexes from bringing the bools to the stuffed animal to the mating attempt. According to the manifestation of libido, animals divided into three groups: active – mating attempt to cage from 10 to 60 seconds, moderate – from 60 to 120 seconds and slow – the time before the mating attempt lasted more than 120 seconds. Subsequently, in experimental bulls recorded the duration of productive use period, the number of leads to the stuffed animal and mating attempts to it and the number of received and rejected ejaculates. It found that the tendency of the distribution of active moderate and slow manifestation of sexual reflexes in bulls of different body types and development of meat forms is similar. In bulls of different groups, moderate sexual activity most often observed, but specific tendencies observed within the groups. The share of high sexual activity was higher in compact bulls compared to large coeval animals. Among animals grouped by the development of meat forms, the share of high sexual activity higher in bulls with better expressed meat forms. In the future, large bulls tend to increase the duration of productive use, predominate in the share of mating attempt and are characterized by a decrease in the share of ejaculate culling. Bulls with better meat forms tend to increase the duration of productive use due to their higher breeding value in terms of meat productivity. No difference was found in the proportion of mating attempts and the percentage of culled ejaculates between animals with different manifestations of meat forms. The obtained results prove that for intensive use at a young age more suitable bulls of compact type, and in adulthood more effective large sires. Better development of meat forms somewhat reduces the sexual activity of young bulls. At a more mature age, the results of the use of bulls are practically unaffected by meat forms.

The Effect of Alcohol on Sexual Reflexes and Sperm Count in the Dog

1958 ◽  
Vol 19 (3) ◽  
pp. 394-398 ◽  
Author(s):  
Harry A. Teitelbaum ◽  
W. Horsley Gantt
Keyword(s):  
Sperm Count ◽  
Sexual Reflexes
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