Results 171 to 180 of about 2,183 (198)
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Studies of body temperature patterns in South American Camelidae
Comparative Biochemistry and Physiology A, Comparative Physiology, 1975Abstract 1. 1. At sea level the core temperatures of the alpaca ( Lama pacos ) and llama ( Lama glama ), recorded continuously by radiotelemetry, were within the ranges of 37·9–38·3°C and 38·l–38·6°C respectively. These ranges were unaltered after 6 days of water deprivation. 2. 2.
J Bligh
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Molecular evolution of the family Camelidae: a mitochondrial DNA study
Proceedings of the Royal Society B: Biological Sciences, 1994We report the first molecular evolutionary analysis of the family Camelidae by analysing the full DNA sequence of the mitochondrial cytochrome b gene. Estimates for the time of divergence of the Old World (Camelini) and New World (Lamini) tribes obtained from sequence data are in agreement with those derived from the fossil record.
Jane C Wheeler
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Reproductive aspects and storage of semen in Camelidae
Animal Reproduction Science, 2000The characteristics of male and female reproductive tracts and reproductive physiology in camelids are described. An account is given on methods of collection, characteristics and storage of semen, and fertility after artificial insemination (AI) with fresh, liquid-stored and frozen-thawed lamoid and camel semen.
P W, Bravo, J A, Skidmore, X X, Zhao
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Comparative hematology—Studies on camelidae
Comparative Biochemistry and Physiology Part A: Physiology, 1976Abstract 1. 1. Blood samples from 2 camels, 1 guanaco and 1 llama were studied. All samples clotted; clots retracted and did not lyse. Prothrombin and partial thromboplastin times were faster than human. Plasma “thromboplastin” was effectively generated. Coagulation factor assays fell in the high to high-normal ranges as compared to human. 2.
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Functional heavy-chain antibodies in camelidae
2001Publisher Summary This chapter focuses on the steps that are involved in the ontogeny of a heavy-chain antibody (HCAb), starting from distinct genes. HCAb is defined as an immunoglobulin devoid of light (L) chains. The presence of HCAbs in human serum is reported as a pathological disorder. It seems that, besides the absence of L chain, the heavy (H)
Nguyen, Viet Khong +2 more
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Heavy-chain antibodies in Camelidae ; a case of evolutionary innovation
Immunogenetics, 2002The emergence in Camelidae species of functional antibodies devoid of light chains (referred to as heavy-chain antibodies or HCAbs) is an intriguing evolutionary event. Homodimeric HCAbs have also been documented in spotted ratfish ( Cos5-Abs) and nurse shark (NAR).
Nguyen, Viet Khong +3 more
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Animal Genetic Resources Information, 1994
RESUMENEl autor describe la situación actual de los camélidos en América del Sur, aportando información sobre la geografia, distribución y número de las tres especies existentes: llama, alpaca y vicuña. Vienen presentados igualmente datos estadísticos importantes sobre las razas y sus sistemas de producción. Algunas indicaciones también sobre la escasa,
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RESUMENEl autor describe la situación actual de los camélidos en América del Sur, aportando información sobre la geografia, distribución y número de las tres especies existentes: llama, alpaca y vicuña. Vienen presentados igualmente datos estadísticos importantes sobre las razas y sus sistemas de producción. Algunas indicaciones también sobre la escasa,
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Emergence and evolution of functional heavy-chain antibodies in Camelidae
Developmental & Comparative Immunology, 2003Antibodies of jawed-vertebrates are composed of paired heavy (H) and light (L) polypeptide chains. Surprisingly, the sera of camelids, nurse shark and wobbegong shark, and possibly ratfish contain antibodies that lack L-chains. In camelids, these Heavy-chain antibodies (HCAbs) are gamma-isotypes, and are functional in antigen binding. In this review we
Conrath, Katja +3 more
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1990
Abstract Camels and llamas, which originated in the New World, form part of the artiodactyl suborder Tylopoda The composition of the Tylopoda has been debated (Romer 1966; Webb and Taylor 1980) but the family Camelidae is evidently most closely related to the Oromerycidae (Gentry and Hooker 1988).
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Abstract Camels and llamas, which originated in the New World, form part of the artiodactyl suborder Tylopoda The composition of the Tylopoda has been debated (Romer 1966; Webb and Taylor 1980) but the family Camelidae is evidently most closely related to the Oromerycidae (Gentry and Hooker 1988).
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Post‐natal Development in the Linear and Tric Morphometrics of the Camelidae Skull
Anatomia, Histologia, Embryologia, 2002SummaryThe craniometric measurements in addition to the skull, cranial and facial indices undertaken in the immature and mature maleCamelus dromedariusof the Malha phenotype (black) were: the skull length (35.99 cm), maximum width of neurocranium (11.33 cm), cranial length (15.45 cm), maximum zygomatic width (14.81 cm), viscerocranial length (20.55 cm),
O, Al-Sagair, S A, ElMougy
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