RESUMEN
Desde el punto de vista del mecanismo de ovulación, los mamíferos han sido divididos en
dos grandes grupos, los ovuladores espontáneos en los cuales el estímulo hormonal del estradiol
producido por un folículo preovulatorio desencadena el proceso ovulatorio y los ovuladores
inducidos o re...
ABSTRACT
Mammals have been divided into two large groups according to the mechanisms of
ovulation, spontaneous ovulators in which the hormonal stimulus of estradiol produced by a
preovulatory follicle triggers the ovulatory process and induced or reflex ovulators, in which the
physical stimul...
The poultry and pig raising activity in backyard production systems (BPS) represents an important percentage of livestock production worldwide. These production systems are characterized by low levels of biosecurity, becoming potential maintainers of zoonotic agents. In Chile, BPS are concentrate...
La actividad de crianza de aves y cerdos en los sistemas productivos de traspatio (SPT) representa un porcentaje importante dentro la actividad de producción animal a nivel mundial. Dichos sistemas de producción se caracterizan por presentar bajos niveles de bioseguridad, transformándose en poten...
En el año 2008 se registraron brotes de Bronquitis Infecciosa (IB) en planteles vacunados, y el
2011 se autorizó el ingreso de la vacuna 4/91 a Chile, la que no había sido descrita previamente en
el país. Se aislaron cepas de los años 1986, 1988, 2009, 2015 y 2017 para ser estudiadas
filogenética...
In 2008 Infectious Bronchitis (IB) outbreaks were registered in vaccinated flocks, and in 2011 the
4/91 vaccine income in Chile was approved, which had not been previously described in the
country. Strains from 1986, 1988, 2009, 2015 and 2017 were isolated to be studied
phylogenetically, antig...
The Nile tilapia (Oreochromis niloticus) is one of the most cultivated and economically important species in world aquaculture. Intensive production promotes the use of monosex populations due to an important sexual dimorphism that favors the growth of the male compared to the female. In this way...
Mesenchymal stem cells (MSCs) are more commonly used every day in both human clinical trials and in veterinary medicine for the treatment of inflammatory diseases. MSCs modulate inflammation through the secretion of mediators. However, despite widespread clinical use, knowledge regarding the effe...
Parental care corresponds to the set of activities carried out by parents to protect and feed their progeny and includes protection against predators, food and transport, among others. In mammals, the feeding of the young through milk is the most costly activity in the reproductive process. There...
Amphibian chytridiomycosis is an emerging infectious disease caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd). This pathogen is known to infect over 200 species of anurans and caudates, and has been associated with amphibian population declines and extinctions. Current evidence in...
Acute ruminal acidosis is a metabolic disease that affects livestock. It is produced by high intake of highly fermentable carbohydrates, which decreases the pH of the ruminal fluid, and generates local and systemic inflammatory manifestations. In experimentally induced cattle with acute ruminal a...
Acidosis ruminal aguda es una enfermedad metabólica que afecta al ganado. Se produce por ingesta elevada de carbohidratos altamente fermentables, lo cual disminuye el pH del líquido ruminal, y genera manifestaciones inflamatorias locales y sistémicas en el organismo. En bovinos inducidos experime...
Actualmente existe un aumento en los trabajos de investigación relacionados al desarrollo de técnicas de reproducción asistida en el gato doméstico con el propósito de implementar estas técnicas en especies de felinos amenazados. La güiña (Leopardus guigna) es una especie endémica de Chile, clasi...
Socialization is a process in which animals interact with unfamiliar conspecifics, that allows young animals to develop their social abilities. A positive effect of socialization before weaning on social behaviour and performance in piglets after weaning has already been found in research facilit...
