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- W2912941391 abstract "In this paper, aspects of reproductive physiology and endocrinology, as well as sexual behaviour in South American camelids are reviewed. Because of the many unique features of reproduction in these animals, the application of advanced breeding techniques that are routinely used in other domestic species has been slow and, in some cases, are not applicable. Relatively high embryonic loss and the capacity to carry only one offspring at a time limit production in females. Furthermore, some 20% of females do not conceive following mating. Research is needed to elucidate the causes of embryonic loss, particularly in relation to the preferential location of embryos in the left uterine horn and the apparent differential luteolytic activity of the two uterine horns. A fuller understanding of the endocrine changes and mechanisms accompanying folliculogenesis, estrus, induction of ovulation and luteal regression may led to treatments that provide better control of ovulation and enhance the quality and viability of eggs shed. In the male, the hormonal interactions involved in facilitating libido need to be established and the underlying causes of declining libido resulting from continued exposure to estrous females, identified. More importantly, there is a need to develop a routine method to collect semen from animals on farm, or in studs. Deficiencies in this area have long hampered the evaluation of sires through proper assessment of their semen quality and in the application of artificial insemination. In addition, establishment of techniques to freeze semen from these species has obvious advantages for breeding, including crossbreeding between species to improve products such as fibre and to assist in preservation of some of the more endangered New World camelids." @default.
- W2912941391 created "2019-02-21" @default.
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- W2912941391 date "1999-01-01" @default.
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- W2912941391 title "Developmental competence in vitro and in vivo of cryopreserved expanding blastocysts from the dromedary camel" @default.
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- W2912941391 doi "https://doi.org/10.1016/s0093-691x(99)91852-6" @default.
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