INDUCCIÓN DE LA OVULACIÓN EN LLAMASMEDIANTE LA ADMINISTRACIÓN INTRAMUSCULAR DEL PLASMA SEMINAL DE LLAMA, ALPACAY TORO

Female llama without calf at foot, in good reproductive conditions and bearing a follicle ³7 mm in the ovaries, detected by ultrasonography, were selected (n = 64). All animals were administered 5 mg of LH(Lutropin V) to synchronize the newly emergent follicular wave.Asecond ultrasonography evaluati...

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Bibliographic Details
Authors: López F., Alicia, Huanca L., Wilfredo, Leyva V., Víctor, Falcón P., Néstor, Huanca M., Teodosio, Ratto F., Marcelo
Format: article
Status:Published version
Publication Date:2012
Country:Perú
Institution:Universidad Nacional Mayor de San Marcos
Repository:Revistas - Universidad Nacional Mayor de San Marcos
Language:Spanish
OAI Identifier:oai:revistasinvestigacion.unmsm.edu.pe:article/1520
Online Access:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/1520
Access Level:Open access
Keyword:Llama
alpaca
toro
plasma seminal
ovulación
cuerpo lúteo
llama
bull
seminal plasma
ovulation
corpus luteum
Description
Summary:Female llama without calf at foot, in good reproductive conditions and bearing a follicle ³7 mm in the ovaries, detected by ultrasonography, were selected (n = 64). All animals were administered 5 mg of LH(Lutropin V) to synchronize the newly emergent follicular wave.Asecond ultrasonography evaluation was done 12 days later to confirm the presence of a dominant follicle (³7mm) and then, animalswere randomlydistributed into four groups. The first three groups were i.m. injected (2 ml)with llama, alpaca and bull seminal plasma, respectively, and the fourth group was injected with PBS (phosphate basic serum) and remained as control. The occurrence of ovulation was evaluated two days later.All animals injectedwith llama and alpaca seminal plasma ovulated, whereas only 25% of llamas treated with bull seminal plasma, and none of the control group ovulated. The size of the corpus luteum 9 days after treatment did not vary among the treated groups. The results indicated that the i.m. administration of llama and alpaca seminal plasma, and in lesser degree, the bull seminal plasma induce ovulation in the llama and allow the growth of a corpus luteum to a size proper of these species.