scholarly journals Seasonal variation in sexual behavior, plasma testosterone and semen characteristics of Argentine Pampinta and Corriedale rams

2012 ◽  
Vol 10 (2) ◽  
pp. 345 ◽  
Author(s):  
J. F. Aller ◽  
D. Aguilar ◽  
T. Vera ◽  
G. P. Almeida ◽  
R. H. Alberio
Keyword(s):  
Sexual Behavior ◽  
Seasonal Variation ◽  
Plasma Testosterone ◽  
Semen Characteristics

Peripheral plasma testosterone concentration and sexual behavior in young prenatally stressed boars

1979 ◽  
Vol 12 (5) ◽  
pp. 289-305 ◽  
Author(s):  
H.G. Kattesh ◽  
E.T. Kornegay ◽  
F.C. Gwazdauskas ◽  
J.W. Knight ◽  
H.R. Thomas
Keyword(s):  
Sexual Behavior ◽  
Plasma Testosterone ◽  
Testosterone Concentration ◽  
Peripheral Plasma ◽  
Prenatally Stressed

scholarly journals Male Hatano low-avoidance rats show more active sexual behavior with lower plasma testosterone than high-avoidance rats

2018 ◽  
Vol 80 (7) ◽  
pp. 1179-1182 ◽  
Author(s):  
Airi NAKAYAMA ◽  
Hasuka OKAWA ◽  
Meihua ZHENG ◽  
Shaoxia PU ◽  
Gen WATANABE ◽  
...  
Keyword(s):  
Sexual Behavior ◽  
Plasma Testosterone ◽  
Lower Plasma

Seasonal variation in semen characteristics of Friesian bulls in Iraq

1968 ◽  
Vol 71 (1) ◽  
pp. 37-40 ◽  
Author(s):  
F. Dessouky ◽  
K. H. Juma
Keyword(s):  
Seasonal Variation ◽  
Volume Density ◽  
Abu Ghraib ◽  
Experiment Station ◽  
Semen Characteristics ◽  
Mass Activity ◽  
Positive Correlations

SummaryA total of 1659 ejaculates was collected from four Friesian bulls imported from Europe and ten of their offspring born in Iraq while in regular artificial service at the Abu-Ghraib Experiment Station. The work covered a period from 1 January 1965 to 30 June 1967.The five semen characteristics, volume, density, mass activity, individual motility and pH were studied and the influence of age of bull and season on these characters was investigated. The relationships between the characters were also investigated.Deterioration was observed in volume of ejaculate, density, mass activity and individual motility in the Iraqi Friesians. Influence of season on all semen characters lacked significance with the exception of mass motility in the European Friesian bulls (P < 0·05). Highly significant positive correlations were found between most of the characters studied.

Seasonal variation in plasma testosterone and the testis in captive male dingoes, Canis familiaries dingo

1979 ◽  
Vol 27 (6) ◽  
pp. 939 ◽  
Author(s):  
PC Catling
Keyword(s):  
Seasonal Variation ◽  
Breeding Season ◽  
Plasma Testosterone ◽  
Testosterone Levels ◽  
Central Australia ◽  
Eastern Highlands

Eastern Highlands and Central Australian dingoes housed in Canberra do not have a testicular cycle. They are spermatogenically active and capable of mating with oestrous females and fathering young all year. They do exhibit a breeding season (April-June) but this is entirely governed by the female. During the breeding season testosterone levels rise; this is thought to be influenced by the presence of an oestrous female and copulation. There are indications that captive dingoes in Central Australia may have a testicular cycle. Colony dingoes showed little interest in and do not mate with an oestrous domestic female at times other than January-July. They also become almost aspermous outside the breeding season. In contrast, Central Australian dingoes housed in Canberra are spermatogenically active and capable of successful matings all year.

Seasonal variation in testicular volume and sexual behavior of Chios and Serres rams

2004 ◽  
Vol 62 (1-2) ◽  
pp. 275-282 ◽  
Author(s):  
Melpomeni Avdi ◽  
Georgios Banos ◽  
Kostantinos Stefos ◽  
Philippe Chemineau
Keyword(s):  
Sexual Behavior ◽  
Seasonal Variation ◽  
Testicular Volume
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