1,721,006 research outputs found
Evaluation of sexual behavior of housed male camels (Camelus dromedarius) through female parades: correlation with climatic parameters
No full textCamels are seasonal breeders, and their sexual behavior is
influenced by environmental conditions, but the relationship
between climatic factors and sexual behavior has been poorly
described in the available literature. Nowadays, the male camel
living habit is shifting towards captivity; thus, this study was carried
out to evaluate the sexual behavior of housed male dromedary
camel through female’s parades and to correlate it with climatic
parameters. Four housed sires, reared for semen collection, and
one dam were used and the trial lasted 8 weeks, considering the first week as control. Six days per week and during evenings, the
female was brought near each males’ boxes, while two observers
filled a behavioral sampling ethogram and scored the male sexual
behavior. After this parade, blood samples were taken from the
female to evaluate the estradiol concentration. In addition, the
following meteorological parameters were recorded, everyday, at
9:00 a.m. and 19:00 p.m.: pressure, wind, temperature, humidity,
and H-index. The correlation between sexual behavioral score and
female estradiol concentration and climate parameters was
analyzed. All the behavioral parameters showed a significant
upward trend; female estradiol concentration varied during the
period and picked at week 5. Male sexual behavior was negatively
correlated with morning H-index, wind, and temperature, and
positively correlated with pressure and evening humidity, whereas it
was not correlated with estrogen. In conclusion, female parade was
a successful method to evaluate and stimulate the occurrence of
housed male dromedary camel sexual activity that resulted to be
negatively affected by hot temperature, warm wind, and lack of
rain
Effect of differnet management system on rutting behavior and behavioral repertoire of housed Maghrebi male camels (Camelus dromedarius)
No full textCamel management has been changing in recent years from an extensive to a semi-intensive or intensive system, particularly for breeding bulls and dairy dromedary camels. Captivity may affect animal welfare, and low libido is the major complaint for housed breeding bulls. Since welfare status could also affect reproductive performance, the aim of this study was to evaluate different management practices on behavior, particularly on sexual behavior, and to identify some behavioral needs of male dromedary camels reared for semen collection. The effects of the following management systems on their behavior were compared: i) traditional: housing in a single stall for 24 hours (H24), ii) housing in a single stall for 23 hours with one hour free in the paddock (H23) and iii) housing in a single stall for 22 hours and 30 min with 1 h paddock time and 30 min exposure to a female camel herd (ExF). During the trial, blood cortisol concentrations were assessed and camels were filmed daily for thirty minutes in the mornings and during a female passage in the evenings. Videos were analyzed in order to fill out a focal sampling ethogram and to score sexual behavior. As a result, there were no differences between the H24 and H23 systems, whereas ExF had a significant positive impact on their sexual behavior score and behavioral repertoire, further reducing cortisol levels. Overall, it seems that male dromedary camel welfare status improves when their behavioral needs for social interaction and movement are satisfied
Effect of differnet management system on rutting behavior and behavioral repertoire of housed Maghrebi male camels (Camelus dromedarius)
No full textCamel management has been changing in recent years from an extensive to a semi-intensive or intensive system, particularly for breeding bulls and dairy dromedary camels. Captivity may affect animal welfare, and low libido is the major complaint for housed breeding bulls. Since welfare status could also affect reproductive performance, the aim of this study was to evaluate different management practices on behavior, particularly on sexual behavior, and to identify some behavioral needs of male dromedary camels reared for semen collection. The effects of the following management systems on their behavior were compared: i) traditional: housing in a single stall for 24 hours (H24), ii) housing in a single stall for 23 hours with one hour free in the paddock (H23) and iii) housing in a single stall for 22 hours and 30 min with 1 h paddock time and 30 min exposure to a female camel herd (ExF). During the trial, blood cortisol concentrations were assessed and camels were filmed daily for thirty minutes in the mornings and during a female passage in the evenings. Videos were analyzed in order to fill out a focal sampling ethogram and to score sexual behavior. As a result, there were no differences between the H24 and H23 systems, whereas ExF had a significant positive impact on their sexual behavior score and behavioral repertoire, further reducing cortisol levels. Overall, it seems that male dromedary camel welfare status improves when their behavioral needs for social interaction and movement are satisfied
Effect of continuos exposition on stereotypical behavior in housed male dromedary camel during the onset of the breeding season
No full textEffects of two different management systems on hormonal, behavioral, and semen quality in male dromedary camels
Get PDFEffects of two different management systems on male dromedary camel hormones, behaviors, and semen parameters were documented. Camels (n=6) were tested under two management systems: (i) housed in single boxes with 1-h freedom (H23); (ii) exposed to females for 17 h (from 3.30 p.m. to 8.30 a.m.) and then housed (ConExF). Blood was collected every morning; camel behavior was recorded twice a day: (i) from 7:00 to 8:00 a.m. to determine the short effects; (ii) from 2:00 to 3:00 p.m. to determine the long effects. Each camel underwent a female parade and semen collection thrice a week; sexual behavior, libido, and semen parameters were assessed. Testosterone and cortisol concentrations were higher in ConExF than H23. Compared to the H23 group, ConExF group spent more time walking, standing tripods, and looking outside their pen/box but they spent less time eating, ruminating, resting, standing, and showing stereotypical behaviors. In the morning, ConExF group spent more time walking, ruminating, and showing typical sexual behaviors compared to themselves during afternoon time and the H23 group. However, in the afternoon time, ConExF camels put more time their heads outside the box through the window and showed higher frequencies of stereotypies, probably due to a higher level of frustration. While the sexual behavioral score was higher and ejaculates showed a higher fraction of milky white and white-colored semen in ConExF than H23 group, their libido was similar. Overall, 17 h of exposure led to an increase in testosterone and cortisol levels, enhancing sexual behavior and semen color, but leading to frustration
First successful artificial insemination of synchronized female Maghrebicamels in Tunisia
No full textEffect of continuous female exposition on testosterone level and sexual behavior in male dromedary camel
No full text
- …
