The social interactions of young bulls and steers after re-grouping

Tennessen, T.; Price, M. A.; Berg, R. T.

doi:10.1016/0168-1591(85)90036-x

Cited by 56 publications

(29 citation statements)

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“…In cattle, this increased aggression persists until a stable social organization is formed, which may require as long as 1 wk (Schein and Fohrman 1955;Brakel and Leis 1976;Tennessen et al 1985 twere mature and had had previous experience with mixing at least within their respective herds. Experiments using rodents, primates, and domestic fowl indicate that there is marked short-term physiological stress associated with mixing unfamiliar animals (Williams et al 1971;Brain 1980;Kaplan 1986 (Flickinger 1961) or that have been placed into groups containing unfamiliar males (Siegel and Siegel 1961) show evidence ofadrenal hypertrophy.…”

mentioning

confidence: 99%

Social Stress and Dominance Among Group Members After Mixing Beef Cows

Mench¹,

Swanson²,

Stricklin³

1990

Can. J. Anim. Sci.

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mentioning

confidence: 99%

Social Stress and Dominance Among Group Members After Mixing Beef Cows

Mench¹,

Swanson²,

Stricklin³

1990

Can. J. Anim. Sci.

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“…Por ejemplo, los machos intactos montan más a otros machos que a los castrados (4,42) , y los toros reducen la frecuencia de sus comportamientos de monta si son tratados bloqueando la testosterona (Andreae et al, 1981 citado por (8) ).…”

Section: Diferencias Endocrinasunclassified

“…Homosexual behavior between males has been existencia del comportamiento homosexual entre machos de varias especies de rumiantes, incluyendo a los ovinos (2) , caprinos (3) , bovinos (4,5) , bisontes (6) , jirafa, antílope, buey almizclero (7) y varias especies de cérvidos (7,8) .…”

Section: Introductionunclassified

“…For example, entire males mount more than those castrated (4,42) , and bulls reduce the frequency of their mounting behavior after blocking their testosterone (Andreae et al, quoted in Bartoš L, Holeèková J. Exciting ungulates: male-male mounting in fallow, white-tailed and red deer (19) ).…”

Section: Endocrine Differencesmentioning

confidence: 99%

“…Esta revisión presenta una síntesis de trabajos en los que se estudiaron los principales factores que influencian o determinan la homosexualidad en rumiantes machos, además de incluir reported in several ruminant species, including sheep (4) , goats (5) , bison (6) , giraffes, antelopes, musk ox (7) and some deer species (7,8) . In general, intrasexual mount (between members of the same sex) is common in both sexes irrespective of age of the animals, and either in animals that live in freedom or in captivity (7) .…”

Section: Introductionmentioning

confidence: 99%

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Comportamiento homosexual en rumiantes machos. Revisión

Freitas‐de‐Melo

Lacuesta

Ungerfeld

2014

RMCP

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RESUMENEn varias especies de rumiantes, tanto domésticos como silvestres, se ha reportado la existencia del comportamiento homosexual entre los machos. El objetivo de esta revisión fue sintetizar la información disponible sobre las diferencias neuroendocrinas entre individuos homo y heterosexuales, y la relación entre la presencia del comportamiento homosexual y la concentración de esteroides sexuales. A su vez, se presenta información que vincula el comportamiento homosexual con la dominancia social, la edad, el ambiente social durante el desarrollo, y los disturbios ambientales. También se analiza como varía el comportamiento homosexual de acuerdo a la estacionalidad reproductiva. Además, se incluye información original sobre la estacionalidad del comportamiento homosexual en carneros domésticos, y de machos de cabra montesa, y su vínculo con la secreción de testosterona. Otro aspecto discutido es el "síndrome de buller" en novillos, individuos que son sistemáticamente montados por otros, y algunos de los factores asociados con la ocurrencia de este síndrome. En síntesis, el comportamiento homosexual en los rumiantes machos tiene un origen etiológico diverso, estando algunos aspectos aún poco estudiados, por lo que toda interpretación debe ser considerada con cautela, siendo por lo tanto un campo de estudio a profundizar. PALABRAS CLAVE: Comportamiento sexual, Núcleo sexual dimórfico, Orientación sexual, Síndrome de buller, Testosterona, Ungulados. ABSTRACTIn several male ruminants, including both, domestic and wild species, it has been reported the presence of homosexual behaviour between males. The aim of this review was to summarize the information about neuroendocrinological differences between homo and heterosexual individuals, and the relationship between homosexual behaviour and sexual steroid concentration. Moreover, we present information that link homosexual behavior with social dominance, age, social environment during the developmental period, and environment disturbances. Therefore, we include information about other physiologic aspects, such as reproductive seasonality, including unpublished information about seasonal changes in domestic rams and captive male Iberian ibex, and the relationship between seasonal changes in testosterone and behaviour. Other topic discussed is the "buller syndrome", which is commonly observed in steers, in which is observed that some males are repeatedly mounted by others males. In brief, homosexual behaviour in male ruminants is multietiologic, and some aspects are understudied, so the interpretation may be cautiously considered before deep studies are developed.

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2024

Domestic Animal Behavior for Veterinarians and Animal Scientists

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The social interactions of young bulls and steers after re-grouping

Cited by 56 publications

References 17 publications

Social Stress and Dominance Among Group Members After Mixing Beef Cows

Social Stress and Dominance Among Group Members After Mixing Beef Cows

Comportamiento homosexual en rumiantes machos. Revisión

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