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  1. Yearling rams initially disinterested in estrous ewes subsequently exhibit subnormal sexual performance

    Contributor(s):: Price, E. O., Orihuela, A., Parthasarathy, V., Borgwardt, R., Dally, M. R.

    Individual 30-min sexual performance (serving capacity) tests were administered to 73 Targhee rams at 18-19 months of age. 41 rams (56

  2. A note on the effect of individual housing conditions on LH secretion in ewes after exposure to a ram

    Contributor(s):: Abecia, J. A., Forcada, F., Zuniga, O.

    To determine whether it is feasible to use the stimulus of exposure to a ram to induce sexual activity in individually housed ewes, 33 adult anoestrous ewes were randomly allocated to two treatments: Group 1, n=20, housed in individual pens, with a ram's pen situated between every two ewes...

  3. Artificial selection of rams for sexual performance and its effect on the sexual behavior and fecundity of male and female progeny

    Contributor(s):: Bench, C. J., Price, E. O., Dally, M. R., Borgwardt, R. E.

    The objective of this study was to determine the effect of a single generation of artificial selection for sexual performance in rams on the sexual behaviour and fecundity of their male and female progeny. Ninety-two ram lambs born to sires selected for either high or low sexual performance were...

  4. Buller steer syndrome review

    Contributor(s):: Blackshaw, J. K., Blackshaw, A. W., McGlone, J. J.

  5. Effects of different housing systems on the behaviour of beef bulls - an on-farm assessment on Austrian farms

    Contributor(s):: Absmanner, E., Rouha-Mulleder, C., Scharl, T., Leisch, F., Troxler, J.

    Previous studies noted significant health and behavioural problems in cattle accommodated on fully slatted floors. As the majority of beef bulls in Austria are still housed on fully slatted floors the development of alternative housing systems becomes vitally important. On the basis of...

  6. Estrous expression in dairy cows and heifers ( Bos taurus ) following repeated PGF<sub>2</sub> alpha injection and choice of selecting a mounting partner

    Contributor(s):: Castellanos, F., Galina, C. S., Orihuela, J. A., Navarro-Fierro, R., Mondragon, R.

    Oestrus was synchronized with PG in 14 Holstein cows and 10 Holstein heifers on 6 occasions. Every 11 days, each animal received an intramuscular injection of 25 mg PGF2 except for the 5th and 6th synchronizations, when only half the animals were treated. Sexual behaviour was observed...

  7. Feline urine spraying

    Contributor(s):: Dehasse, J.

    10% of all cats spray in adulthood. The sequence of urine spraying and its triggering stimuli were analysed and its pharmacological treatment is summarized. Clomipramine (AnafranilReg.) was tested on 26 cats (5 mg once a day). The results showed clomipramine is responsible for a reduction of...

  8. Incidence of repeat-breeding among Angus bulls ( Bos taurus ) differing in sexual performance

    Contributor(s):: Araujo, J. W. de, Borgwardt, R. E., Sween, M. L., Yelich, J. V., Price, E. O.

    Rams exhibiting relatively high levels of sexual performance (HP) repeat-breed the same female fewer times than low-performing (LP) rams. The objective of this study was to determine if HP and LP bulls differed in their tendency to repeat-breed individual females. Eighteen sexually experienced...

  9. Male influence on proceptivity in ovariectomized French-Alpine goats ( Capra hircus )

    Contributor(s):: Billings, H. J., Katz, L. S.

    Proceptivity is defined as female sexual behaviours that bring the male into closer proximity and maintain his proximity and sexual motivation for mating to occur. The effect of contact with a male on the display of proceptivity was investigated in 7 progesterone- and estradiol-treated...

  10. Post-copulative guarding: mating behaviour of non-territorial male sika deer ( Cervus nippon ) in an enclosure

    Contributor(s):: Endo, A., Doi, T., Shiraki, A.

    The mating behaviour of 4 captive male sika deer, which had no territory or harem, was studied on Nozaki Island, Japan, during October 1990. The males were housed in an enclosure (0.32 square hectares) with 4 females and 1 male yearling. The dominance hierarchy of the males was recorded....

  11. Temperament and sexual experience affect female sexual behaviour in sheep

    Contributor(s):: Gelez, H., Lindsay, D. R., Blache, D., Martin, G. B., Fabre-Nys, C.

    Our aim was to study the effect of temperament and sexual experience on female sexual behaviour. We used ewes from a flock that had been genetically selected for 'calm' or 'nervous' temperament, in which oestrus was synchronized by a 14-day treatment with intravaginal progesterone sponge. Using...

  12. The role of gonadal hormones in the occurrence of objectionable behaviours in dogs and cats

    Contributor(s):: Hart, B. L., Eckstein, R. A.

    This paper reviews laboratory studies and surveys of pet owners whose pets were castrated or spayed. The role of the placebo effect in the latter source of information is unknown. The information indicates that: (1) it is the sexually dimorphic behavioural patterns that are reduced or eliminated...

  13. 'Libido' in the larger farm animals: a review

    Contributor(s):: Wodzicka-Tomaszewska, M., Kilgour, R., Ryan, M.

    The term 'libido', first used by Freud to refer to the force by which the sexual instinct is represented in the mind, has become more and more used to refer to some aspects of sexual behaviour in large domestic animals. From being a wide, rather imprecise term, it has come to be defined in a...

  14. A quantitative study of pre-ovulatory behaviour in cattle (British Friesian heifers)

    Contributor(s):: Esslemont, R. J., Glencross, R. G., Bryant, M. J., Pope, G. S.

    24 British Friesian heifers with normal oestrous cycles were observed continuously for 24 days. The exhibition of 13 components of behaviour was recorded. The 11 most frequently seen components which involved the participation of 2 heifers were classified as aggressive (butting), investigatory...

  15. Agonistic and mating behavior of adult chickens modified by social and physical environments

    Contributor(s):: Craig, J. V., Bhagwat, A. L.

    Agonistic and mating behaviour in 48 flocks of adult White Leghorn fowls was observed for 8 wk. A factorial experimental design allowed evaluation of behaviour as affected by genetic strain, presence or absence of males , age group (initial ages of 32 or 48 wk), and less crowded floor pens...

  16. Effect of changing the teaser ewe on the sexual activity of the ram

    Contributor(s):: Thiery, J. C., Signoret, J. P.

    In an experiment involving 3 Romanov and 6 Ile-de-France rams, changing the teaser ewe during a sexual behaviour test resulted in a significant increase in the level of sexual motivation in the ram, as measured by nudging frequency, compared with rams kept continuously with the same ewe. A...

  17. Influence of the sexual receptive of a teaser ewe on the mating preference in the ram

    Contributor(s):: Signoret, J. P.

    Nine sexually experienced rams were each presented in sexual behaviour tests with 3 restrained, ovariectomised ewes injected with progesterone, oestrogen or androgen. Neither the behavioural status of the female (oestrous or not), nor the hormonal treatment, influenced the orientation of the male...

  18. Mating and other behavior of domestic geese

    Contributor(s):: Gillette, D. D.

    Goose mating behaviour consisted of enticing, exciting, mounting, treading, copulating, recovering and after-displaying. Its frequency indicated that ganders might mount and ejaculate a minimum of five times daily. It was defined and described how geese preen, dry-wash, bucket-wash, fluff, dust,...

  19. Observations on group mating of bulls at pasture

    Contributor(s):: Blockey, M. A. de B.

    Five experiments were carried out on the socio-sexual behaviour of beef bulls mated as a group to a herd of cows: (1) to predict the social dominance order in grouped bulls, (2) to investigate by computer simulation the group sizes needed to estimate accurately social dominance order, (3) to...

  20. Relationship between the incidence of pre-ovulatory behaviour and the concentrations of oestradiol-17 beta and progesterone in bovine plasma

    Contributor(s):: Glencross, R. G., Esslemont, R. J., Bryant, M. J., Pope, G. S.

    The incidence of 11 components of behaviour exhibited by 24 British Friesian heifers was recorded over a 24-day period. Components were classified into 4 groups: standing, mounting, initiating behaviour (other than mounting), and receiving behaviour (other than standing). There was a peak in the...