Biology of reproduction and modern reproductive technology in the dog.

Forsberg, Catharina Linde; Reynaud, Karine; Ostrander, E. A.; Ruvinsky, A.

doi:10.1079/9781845939403.0295

Cited by 9 publications

(10 citation statements)

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“…The estrogen and prolactin hormones showed no significant differences in cyclic or induced estrus animals. However, the level of these hormones has 58 a significant dropping during the 2 nd month in non-responsive females which agrees with previous study (8). Estradiol increased throughout proestrus, rising from basal 5-10 pg/ml to reach peaks of 45-120 pg/ml (in most instances) 1-3 days before the preovulatory LH peak (1).…”

supporting

confidence: 91%

Hormonal Profile of Iraqi Bitches During Various Physiological Stages.

Zaid¹

2017

Bas.J.Vet.Res.

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The study was conducted to investigate the success of inducted estrus and to track the hormonal levels during the estrus cycle, pregnancy and post-parturition in dogs. Ten females, aged 2-3 years and weighted 18-22 kg, were kept in cages at the College of Veterinary Medicine-University of Baghdad. Dogs were mated and tracked till they become conceive. Then, after one month of parturition, they treated with Bromocriptine (Parlodel) a dose of (0.05mg/kg/dog) twice daily to induce estrus. Eight dogs showed estrus and mated again with the same mature dogs. Blood serum was taken once a week from cephalic vein. Follicular Stimulating Hormone (FSH), Luteinizing hormone (LH), Estrogen and Prolactin were measured by using canine Gamma counter kits. In both, normal and induced estrus periods, FSH and LH hormone levels started to elevate in proestrus and estrus phases then they declined in pregnancy months and post-parturition. Estrogen and prolactin hormones had significant differences during the second month in the other non-responsive dogs. Estrogen levels indicated that the proestrus, estrus and treatment period showed higher significant differences (P<0.01) than anestrus period.

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supporting

confidence: 91%

Hormonal Profile of Iraqi Bitches During Various Physiological Stages.

Zaid¹

2017

Bas.J.Vet.Res.

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“…Like other mammalian species, canid spermatogenesis is controlled by the hypothalamic–pituitary–gonadal axis [ 87 ]. In the domestic dog, sperm can be recovered when the males reach sexual maturation at around 6–8 months of age [ 87 , 88 ], with optimal sperm production observed at 15–16 months old in beagles [ 87 ]. However, sperm production may not occur until the males approach 2 years old in grey wolves [ 14 ].…”

Section: Canid Reproductive Biologymentioning

confidence: 99%

“…Sperm maturation occurs in the epididymis and the gametes acquire fertilizing ability when they reach the cauda region [ 89 ]. Studies in the domestic dog have shown that the entire process of spermatogenesis takes 62 days and sperm spend 15 days in epididymal transit [ 87 ]. Following ejaculation, dog spermatozoa can survive in the female reproductive tract for up to 7 days [ 86 ].…”

Section: Canid Reproductive Biologymentioning

confidence: 99%

Canid Reproductive Biology: Norm and Unique Aspects in Strategies and Mechanisms

Nagashima

Songsasen

2021

Animals

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The reproductive physiology of canids is unique compared to other mammalian species. Specifically, the reproductive cycle of female canids is characterized by extended periods of proestrus and estrus followed by obligatory diestrus and protracted ovarian inactivity (anestrus). Although canid reproduction follows this general pattern, studies have shown variations in reproductive biology among species and geographic regions. Understanding of these differences is critical to the development of assisted reproductive technologies including estrus induction, gamete rescue, and embryo production techniques for canid conservation efforts. This review summarizes current knowledge of canid reproduction, including estrus cyclicity, seasonality, and seminal traits, with the emphasis on species diversity. The application of reproductive technologies in wild canid conservation will also be discussed.

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“…Canine penises, for example, swell once engaged in the vagina to ensure seminal transmission. This swelling often “locks” the two animals into position and is referred to as the “copulatory” or “coital tie” (Linde‐Forsberg, ). Wiegand, Schmidt, and Kleiber () described injury from the coital tie in the setting of bestiality in an 11‐year‐old male who experienced extensive anal rectal injury after penile penetration by a German shepherd dog.…”

Section: Clinical Considerationsmentioning

confidence: 99%

Bestiality: An introduction for legal and mental health professionals

Holoyda

Sorrentino

Friedman

et al. 2018

Behavioral Sci & The Law

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Bestiality, or human-animal intercourse, has been a concern of the legal and mental health communities for many years.Ancient legal codes delineated punishments for those who engaged in the behavior, denoting a moral and general societal concern surrounding bestiality dating to ancient times. Despite this longstanding interest in and legal efforts to punish humans for having sex with animals, there has been little research on the behavior. Current available research has largely been siloed based on the populations studied, making it difficult to render any firm conclusions about bestiality's prevalence, frequency, and the risk posed by those who have sex with animals. It is important for clinicians to know the legal status of the behavior in their jurisdictions, to understand possible medical and psychiatric complications and comorbidities, and to know how to evaluate and treat individuals who engage in bestiality or have the related diagnosis of zoophilic disorder. This article provides an overview of the terminology and research pertaining to bestiality, summarizes legal and ethical considerations, and describes clinically relevant information for the evaluation and management of individuals engaged in sex with animals.

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Biology of reproduction and modern reproductive technology in the dog.

Abstract: This chapter aims to summarize the basic reproductive physiology of the male and female dog, including the latest discoveries within this field, and also to give an update on the applications of new reproductive technologies in this species.

Cited by 9 publications

References 0 publications

Hormonal Profile of Iraqi Bitches During Various Physiological Stages.

Hormonal Profile of Iraqi Bitches During Various Physiological Stages.

Canid Reproductive Biology: Norm and Unique Aspects in Strategies and Mechanisms

Bestiality: An introduction for legal and mental health professionals

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