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Growing without a mother results in poorer sexual behaviour in adult rams

Published online by Cambridge University Press:  11 July 2017

J.P. Damián ,
F. Beracochea ,
S. Machado ,
M.J. Hötzel ,
G. Banchero  and
R. Ungerfeld
J.P. Damián*
Affiliation:
Departamento de Biología Molecular y Celular, Facultad de Veterinaria, Universidad de la República, Lasplaces 1550, Montevideo 11600, Uruguay
F. Beracochea
Affiliation:
Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Lasplaces 1550, Montevideo 11600, Uruguay
S. Machado
Affiliation:
Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Lasplaces 1550, Montevideo 11600, Uruguay
M.J. Hötzel
Affiliation:
Laboratório de Etologia Aplicada e Bem-Estar Animal, Departamento de Zootecnia e Desenvolvimento Rural, Universidade Federal de Santa Catarina, Rodovia Admar Gonzaga, 1346 Florianópolis, SC 88.034-001, Brazil
G. Banchero
Affiliation:
Unidad de Ovinos, Instituto Nacional de Investigación Agropecuaria, Ruta 50 km 12, La Estanzuela, Colonia 70000, Uruguay
R. Ungerfeld
Affiliation:
Departamento de Fisiología, Facultad de Veterinaria, Universidad de la República, Lasplaces 1550, Montevideo 11600, Uruguay
*
†E-mail: jpablodamian@gmail.com
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Abstract

The aim of this study was to determine if the absence of the mother during rearing has long-term effects on sexual behaviour and physiological reproductive parameters of adult rams. Two groups of rams were: (1) artificially reared, separated from their dams 24 to 36 h after birth (Week 0) and fed using sheep milk until 10 weeks of age (group AR, n=14); and (2) reared by their dams until 10 weeks of age (group DR, n=13). Sexual behaviour (tests of 20 min) and physiological reproductive parameters were analysed separately for the non-breeding (Weeks 42 to 64) and the breeding (Weeks 66 to 90) seasons. Body weight, scrotal circumference, gonado-somatic index, testosterone concentrations or sperm parameters were similar in both rearing conditions (AR v. DR) in both seasons. During the non-breeding season AR rams displayed fewer ano-genital sniffings (AR: 4.2±0.4 v. DR: 5.3±0.4, P=0.04) and matings (AR: 1.2±0.2 v. DR: 1.8±0.2, P=0.002) than DR rams. During the breeding season AR rams displayed fewer ano-genital sniffings (AR: 4.3±0.5 v. DR: 5.7±0.5, P=0.005), flehmen (AR: 0.7±0.2 v. DR: 1.1±0.2, P=0.03), mount attempts (AR: 1.4±0.2 v. DR: 2.1±0.2, P=0.04), and tended to mount less frequently (AR: 6.6±0.9 v. DR: 8.8±0.9, P=0.08) than DR rams. In conclusion, the absence of the mother during the rearing period negatively affected display of sexual behaviour towards oestrous ewes during a rams adult life in both breeding and non-breeding seasons. However, it did not affect testis size, testosterone secretion or sperm variables.

Keywords

sheepmother-offspring bondtestosteronesperm
Type
Research Article
Information
animal , Volume 12 , Issue 1 , January 2018 , pp. 98 - 105
Copyright
© The Animal Consortium 2017 

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References

Akbari, EM, Budin, R, Parada, M and Fleming, AS 2008. The effects of early isolation on sexual behavior and c-fos expression in naïve male Long-Evans rats. Developmental Psychobiology 50, 298–306.Google Scholar
Banks, EM 1964. Some aspects of sexual behavior in domestic sheep, Ovis aries . Behaviour 23, 249–278.Google Scholar
Barth, AD and Oko, RJ 1989. Abnormal morphology of bovine spermatozoa. Iowa State University Press, Ames, IA, USA.Google Scholar
Birke, L and Sadler, D 1987. Differences in maternal behavior of rats and the sociosexual development of the offspring. Developmental Psychobiology 20, 85–99.Google Scholar
Borja, F and Fabre-Nys, C 2012. Brain structures involved in the sexual behaviour of Ile de France rams with different sexual preferences and levels of sexual activity. Behavioural Brain Research 226, 411–419.Google Scholar
Broad, KD, Curley, JP and Keverne, EB 2006. Mother-infant bonding and the evolution of mammalian social relationships. Philosophical Transactions of the Royal Society B: Biological Sciences 361, 2199–2214.CrossRefGoogle ScholarPubMed
Damián, JP, Beracochea, F, Hötzel, MJ, Banchero, G and Ungerfeld, R 2015. Reproductive and sexual behaviour development of dam or artificially reared male lambs. Physiology and Behavior 147, 47–53.CrossRefGoogle ScholarPubMed
Damián, JP, Hötzel, MJ, Banchero, G and Ungerfeld, R 2013. Behavioural response of grazing lambs to changes associated with feeding and separation from their mothers at weaning. Research in Veterinary Science 95, 913–918.Google Scholar
Dwyer, CM 2014. Maternal behaviour and lamb survival: from neuroendocrinology to practical application. Animal 8, 102–112.Google Scholar
Dwyer, CM and Lawrence, AB 2000. Effects of maternal genotype and behaviour on the behavioural development of their offspring in sheep. Behaviour 137, 1629–1654.CrossRefGoogle Scholar
Evans, G and Maxwell, WMC 1990. Inseminación artificial de ovejas y cabras. Editorial Acribia S.A, Zaragoza, España.Google Scholar
Gordon, K and Siegmann, M 1991. Suckling behavior of ewes in early lactation. Physiology and Behavior 50, 1079–1081.Google Scholar
Illius, AW, Hayes, NB and Lamming, GE 1976. Effects of ewe proximity on peripheral plasma testosterone levels and behaviour in the ram in different social environment. Journal of Reproduction and Fertility 48, 25–32.CrossRefGoogle Scholar
Jeyendran, RS, Van der Ven, HH, Perez-Pelaez, M, Crabo, BG and Zaneveld, LJD 1984. Development of an assay to assess the functional integrity of the human sperm membrane and its relationship to other semen characteristics. Journal of Reproduction and Fertility 70, 219–228.CrossRefGoogle ScholarPubMed
Katz, LS 2008. Variation in male sexual behavior. Animal Reproduction Science 105, 64–71.CrossRefGoogle ScholarPubMed
Kendrick, KM, Hinton, MR and Atkins, K 1998. Mothers determine sexual preferences. Nature 395, 229–230.CrossRefGoogle ScholarPubMed
Lau, C, Klinefelter, G and Cameron, AM 1996. Reproductive development and functions in the rat after repeated maternal deprivation stress. Fundamental and Applied Toxicology 30, 298–301.Google Scholar
Le Roux, PJ and Barnard, JP 1974. Effect of heterosexual contact on libido and mating dexterity in Karakul rams. South African Journal of Animal Science 4, 171–174.Google Scholar
Levy, F and Poindron, P 1987. The importance of amniotic fluids for the establishment of maternal behaviour in experienced and inexperienced ewes. Animal Behaviour 35, 1188–1192.Google Scholar
Lindsay, DR 1996. Environment and reproductive behaviour. Animal Reproduction Science 42, 1–12.CrossRefGoogle Scholar
Matos, CAP and Thomas, DL 1992. Physiology and genetics of testicular size in sheep: a review. Livestock Production Science 32, 1–30.Google Scholar
Moore, CL 1984. Maternal contributions to the development of masculine sexual behavior in laboratory rats. Developmental Psychobiology 17, 347–356.Google Scholar
Moore, CL 1992. The role of maternal stimulation in the development of sexual behavior and its neural basis. Annals of the New York Academy of Sciences 662, 160–177.Google Scholar
Munro, J 1956. Observations on the suckling behaviour of young lambs. The British Journal of Animal Behaviour 4, 36–36.Google Scholar
Nowak, R, Keller, M and Lévy, F 2011. Mother-young relationships in sheep: a model for a multidisciplinary approach of the study of attachment in mammals. Journal of Neuroendocrinology 23, 1042–1053.Google Scholar
Nowak, R, Porter, RH, Lévy, F, Orgeur, P and Schaal, B 2000. Role of mother–young interactions in the survival of offspring in domestic mammals. Reviews of Reproduction 5, 153–163.CrossRefGoogle ScholarPubMed
Pérez, R, López, A, Castrillejo, A, Bielli, A, Laborde, D, Gastel, T, Tagle, R, Queirolo, D, Franco, J, Forsberg, M and Rodriguez-Martinez, H 1997. Reproductive seasonality of Corriedale rams under extensive rearing conditions. Acta Veterinaria Scandinavica 38, 109–117.CrossRefGoogle ScholarPubMed
Pérez-Clariget, R, Forsberg, M, López, A and Castrillejo, A 1998. Effects of nutrition on seasonal changes in scrotal circumference, testosterone and pituitary responsiveness to exogenous GnRH in Corriedale rams. Small Ruminant Research 29, 61–69.Google Scholar
Perkins, A, Fitzgerald, JA and Price, EO 1992. Sexual performance of rams in serving capacity tests predicts success in pen breeding. Journal of Animal Science 70, 2722–2725.CrossRefGoogle ScholarPubMed
Pursel, VG and Johnson, LA 1974. Glutaraldehyde fixation of boar spermatozoa for acrosome evaluation. Theriogenology 1, 63–68.Google Scholar
Rhees, RW, Lephart, ED and Eliason, D 2001. Effects of maternal separation during early postnatal development on male sexual behavior and female reproductive function. Behavioural Brain Research 123, 1–10.Google Scholar
Stellflug, JN and Lewis, GS 2007. Effect of early and late exposure to estrual ewes on ram sexual performance classifications. Animal Reproduction Science 97, 295–302.Google Scholar
Ungerfeld, R 2012. Seasonal reproductive patterns and effectiveness as teasers (ram effect) of Corriedale and Milchschaf rams. Animal Production Science 52, 1036–1041.Google Scholar
Ungerfeld, R and González-Pensado, SP 2008. Social rank affects reproductive development in male lambs. Animal Reproduction Science 109, 161–171.Google Scholar
Ungerfeld, R and Lacuesta, L 2010. Social rank during pre-pubertal development and reproductive performance of adult rams. Animal Reproduction Science 121, 101–105.Google Scholar
Vázquez, R, Orihuela, A, Flores-Pérez, FI and Aguirre, V 2015. Reducing early maternal licking of male lambs (Ovis aries) does not impair their sexual behavior in adulthood. Journal of Veterinary Behavior: Clinical Applications and Research 10, 78–82.Google Scholar
Zenchak, JJ and Anderson, GC 1980. Sexual performance levels of rams (Ovis aries) as affected by social experience during rearing. Journal of Animal Science 50, 167–174.CrossRefGoogle Scholar