1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia


Opción 1: Descargar recurso

Opción 2: Descargar recurso

Detalles del recurso

Descripción

Prolonged abnormal vomiting causes metabolic alkalosis. Many seabirds are known to feed their chicks by regurgitation. We hypothesized that metabolic alkalosis occurs in seabirds even under natural conditions during the breeding season. Adélie penguins Pygoscelis adeliae feed their chicks by regurgitating food for 50-60 d until the chicks fledge. In this study, the concentrations of Cl-, HCO3-, Na+, K+, pH, and in the blood of breeding Adélie penguins were measured throughout the chick-rearing season. The pH of penguin venous blood shifted from 7.54 in the guarding period to 7.47 in the crèche period. Decreasing Cl- and increasing HCO3- blood concentrations in parents were associated with increasing mass of their brood in the guarding period, the early phase of the rearing season, indicating that regurgitating to feed chicks causes loss of gastric acid and results in relative metabolic alkalosis. The inverse trend was observed during the crèche period, the latter phase of the rearing season, when parents spent more time at sea and have fewer opportunities for gastric acid loss. This was assumed to be the recovery phase. These results indicate that regurgitation might cause metabolic alkalosis in breeding Adélie penguins. To our knowledge, this is the first report to indicate that seabirds exhibit metabolic alkalosis due to regurgitation to feed chicks under natural conditions.

Pertenece a

Hokkaido University Collection of Scholarly and Academic Papers  

Autor(es)

Sakamoto, Kentaro Q. -  Sato, Katsufumi -  Kato, Akiko -  Fukui, Daisuke -  Bando, Gen -  Naito, Yasuhiko -  Habara, Yoshiaki -  Ishizuka, Mayumi -  Fujita, Shoichi - 

Id.: 69969184

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Palabras clave488 - 

Tipo de recurso: article  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Distributed under licence by JSTOR.

Requerimientos técnicos:  Browser: Any - 

Fecha de contribución: 06-oct-2017

Contacto:

Localización:
* Physiological and Biochemical Zoology, 83(2): 232-238

Otros recursos de la mismacolección

  1. Relationship between in vitro growth of bovine oocytes and steroidogenesis of granulosa cells cultured in medium supplemented with bone morphogenetic protein-4 and follicle stimulating hormone Bone morphogenetic protein-4 (BMP-4) and FSH play important regulatory roles in follicular growth an...
  2. Investigation of chromated copper arsenate-treated waste wood used for bedding material in the Hokkaido area Chromated copper arsenate (CCA)-treated wood has prompted public concern regarding the contamination...
  3. Discovery of genome of an immunodeficiency-associated virus-like virus from pig feces in Japan Immunodeficiency-associated stool virus (IASV) is an unclassified virus, for which the only genome i...
  4. Acute testicular atrophy in an active Thoroughbred stallion A Thoroughbred stallion was used as an active stallion for ten years, however, the number and motili...
  5. Potency of an inactivated influenza vaccine prepared from A/duck/Mongolia/245/2015 (H10N3) against H10 influenza virus infection in a mouse model The H10N8 influenza virus became a threat to public health when cases of fatal infections were ident...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.