Effects of the age of male and female broiler breeders on sexual behaviour, fertility and hatchability of eggs

2000 ◽  
Vol 41 (3) ◽  
pp. 370-376 ◽  
Author(s):  
P.M. Hocking ◽  
R. Bernard
Keyword(s):  
Sexual Behaviour ◽  
Broiler Breeders ◽  
Male And Female

4. Sex roles and stereotypes

2018 ◽  
pp. 52-68
Author(s):  
Leigh W. Simmons
Keyword(s):  
Sexual Selection ◽  
Mate Choice ◽  
Sexual Behaviour ◽  
Sex Roles ◽  
Animal Species ◽  
Male And Female ◽  
Mating Competition ◽  
Characteristic Behaviour ◽  
Males And Females ◽  
Female Roles

‘Sex roles and stereotypes’ examines the notion, implicit in many of the original ideas about sexual selection, that males and females have natural ‘roles’ with characteristic behaviour associated with each sex. It also explores further the reasons behind deviations from the ‘typical’ sex roles in mate choice and in mating competition. Are there ‘standard’ male and female roles in both humans and other animal species? One version of sex roles holds that males are generally dominant and females submissive, stemming from the way that sexual selection favours different behaviours in each sex. This could mean that sexual selection dictates particular behaviours in males and females. But in fact, sexual behaviour is extraordinarily varied in nature.

scholarly journals Fertility of Male and Female Broiler Breeders Following Exposure to Elevated Ambient Temperatures

1995 ◽  
Vol 74 (6) ◽  
pp. 1029-1038 ◽  
Author(s):  
CHRISTOPHER D. MCDANIEL ◽  
R. KEITH BRAMWELL ◽  
JEANNA L. WILSON ◽  
BIRKETT HOWARTH
Keyword(s):  
Broiler Breeders ◽  
Male And Female ◽  
Ambient Temperatures

FAILURE OF DIHYDROTESTOSTERONE TO ELICIT SEXUAL BEHAVIOUR IN THE FEMALE CAT

1977 ◽  
Vol 75 (1) ◽  
pp. 173-174 ◽  
Author(s):  
VERONICA A. CERNY
Keyword(s):  
Sexual Behaviour ◽  
Female Rats ◽  
University Of Pennsylvania ◽  
Male Rat ◽  
Peripheral Target ◽  
Target Tissue ◽  
Male And Female ◽  
Behavioural Effects ◽  
Male And Female Rats ◽  
Target Organs

Laboratory of Anatomy, Department of Animal Biology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, U.S.A. (Received 28 March 1977) Testosterones have stimulatory effects on peripheral target tissue and sexual behaviour in male and female rats (Beach, 1942), guinea-pigs (Young, 1961; Diamond & Young, 1963), rabbits (Palka & Sawyer, 1966; Beyer & Rivaud, 1973) and cats (Green, Clemente & de Groot, 1957; Young, 1961; Whalen & Hardy, 1970). 5α-Androstan-17β-ol-3-one (dihydrotestosterone, DHT) has stimulatory effects on peripheral target organs, and like testosterones, a negative feedback effect on the pituitary gland and hypothalamus (Feder, 1971). No behavioural effects were seen in male or female rats when DHT was injected systemically (Beyer, Morali & Cruz, 1971; Feder, 1971) nor in the male rat when it was administered intracerebrally (Johnston & Davidson, 1972). Many experiments support the hypothesis that only androgens that can be aromatized to oestrogens can elicit sexual behaviour and

The influence of mating conditions on the sexual behaviour of male and female pigs

1989 ◽  
Vol 23 (3) ◽  
pp. 207-214 ◽  
Author(s):  
P.H. Hemsworth ◽  
C. Hansen ◽  
C.G. Winfield
Keyword(s):  
Sexual Behaviour ◽  
Male And Female ◽  
Mating Conditions

Behavioural Differences Between Zebrafinch and Bengalese Finch (Foster) Parents Raising Zebrafinch Offspring

Behaviour ◽  
1982 ◽  
Vol 81 (2-4) ◽  
pp. 152-172 ◽  
Author(s):  
Carel TEN CATE
Keyword(s):  
Parental Care ◽  
Sexual Behaviour ◽  
Foster Parents ◽  
Species Differences ◽  
Sexual Preference ◽  
Male And Female ◽  
Bengalese Finch ◽  
Parental Behaviour ◽  
The Moment ◽  
Sexually Mature

AbstractSexually mature zebrafinch males show a sexual preference for the species which has raised them. IMMELMANN (1972 a, b) stated that such a preference develops more readily if zebrafinch males were exposed to their own species than to Bengalese finches. The explanation for this phenomenon has been the supposition that an initial bias for the own species exists which is independent of post hatch experience. This hypothesis presupposes the absence of differences in behaviour between zebrafinch and Bengalese finch parents raising zebrafinch offspring. To investigate this supposition, the parental behaviour of zebrafinch and Bengalese finch (foster)parents raising zebrafinch offspring was observed. This was done in pure pairs (male and female of the same species) as well as in mixed pairs (male and female of different species). Differences between both species were found in parental care, and in clumping, allopreening, aggressive and sexual behaviour directed to zebrafinch young; most clearly in mixed, but often in pure pairs too. These differences were present from a few days after hatching till the moment of separating parents and young at about day 57. The kind of differences gradually changed during this period. Zebrafinch young are thus not exposed to equivalent experience with zebrafinch and Bengalese finch parents. The observed differences in experience may underly the more readily developing preference for zebrafinch than for Bengalese finch. This alternative should be explored more thorougly before the initial bias hypothesis is accepted.

The influence of conditions at the time of mating on the sexual behaviour of male and female pigs

1996 ◽  
Vol 48 (3-4) ◽  
pp. 143-150 ◽  
Author(s):  
E.C. Jongman ◽  
P.H. Hemsworth ◽  
D.B. Galloway
Keyword(s):  
Sexual Behaviour ◽  
Male And Female
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