Animales vivos, no destinados a la alimentación: aforos uniformes acordados

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Influence of lineage of oocyte donor on the yield and morphology of oocytes recovered by ultrasound-guided follicular aspiration in nellore cows

The objective of this study was to investigate the influence of lineage of oocytes donors on the number and quality of oocytes obtained through ultrasound-guided follicular aspiration in Nellore breed cows derived from two lineages of bulls (Karvadi; K and Taj-Mahal; T). Both maternal (Km and Tm) and paternal (Kp and Tp) lineages, as well as their combinations were investigated. Oocyte aspirations were repeatedly performed with an aspiration interval of 15 days in 56 donor females. Recovered cumulus oocyte-complexes (COCs) were counted, morphologically examined and classified into seven categories (grades from I to VII) according to the number of layers of the cumulus oocyte and cytoplasm appearance. The mean number of oocytes retrieved from donors of lineage Tp-Tm was significantly higher (28.23±1.92, P<0.05) than those obtained from lineages Kp-Tm, Kp-Km, and Tp-Km (21.34±1.32, 21.28±1.73, and 16.72±1.31, respectively). There was no significant difference in the mean number of recovered oocytes between donors of lineages Kp-Km and Kp-Tm, whereas animals of lineage Tp-Km yielded the lowest number of oocytes. Higher mean number of grade III oocytes was recovered from donors of lineage Kp than lineage Tp (10.11±0.66 versus 8.79±0.58, respectively), with more grade III oocytes being obtained in both lineages as compared to the others. Paternal lineage did not influence the quality of recovered oocytes in any other category, but both Kp and Tp yielded a great mean number of oocytes graded as I, II, and III (3.14±0.21; 4.93±0.33, and 10.11±0.66 versus 3.19±0.21, 5.59±0.44, and 8.79±0.58, respectively) than those classified as IV, V, VI, and VII. However, when considering the data from the maternal lineage significantly more oocytes (P<0.05) of grade I, II and III were obtained from Taj-Mahal (11.67 ± 0.67, 5.9±0.42 and 3.64±0.25, respectively) than for lineage Karvadi, with similar results for oocytes of grades IV, V, VI, and VII. Similarly to the paternal lineage, the number of oocytes of grade III was superior (P<0.05) when compared to other categories for both lineages. In conclusion, we demonstrate here a direct influence of lineage of oocyte donor on the production and quality of oocytes obtained through ultrasound-guided follicular aspiration in Nellore cows.

Aproximación a la metodología de estudio de los restos óseos animales en yacimientos del archipiélago canario

[ES] La Zooarqueología es una de las ciencias auxiliares de la Arqueología, cuyo cometido es estudiar los restos óseos animales recuperados de los yacimientos arqueológicos. Para ello se sirve de una metodología basada tanto en las prácticas de la Biología y la Zoología, como en las técnicas interpretativas de la disciplina arqueológica. El fin último de estos trabajos es acercar al presente la realidad de sociedades alejadas en el tiempo, en lo referido a los sistemas de aprovechamiento de los recursos ofrecidos por los animales, en el marco de sistemas productivos generales.

Piensos para animales acuáticos y desarrollo de la Acuicultura

[ES] La acuicultura como medio de producción de alimento para consumo humano ha experimentado una gran expasión a lo largo de los últimos cincuenta años, incrementando su producción a razón de un 9-10% anual durante los últimos 10 años, muy por encima del 4-5% del resto de los animales de granja. Entre otros factores, la mejora tecnológica de los piensos y adecuación de los mismos a las necesidades nutricionales de los animales han sido determinantes para el desarrollo del sector. Se mostrará la evolución histórica de los piensos acuícolas, estado actual de los mismos y proyecciones futuras

Los animales domésticos de los habitantes de la Cueva de Villaverde (Fuerteventura)

[ES] More than two hundred and fifty kilogrammes (six hundred pounds) of uncountable osseous fragments of domestic animals from the beginning óf our era have been extracted in the course of archeological excavations carried out in Villaverde. Their inventory and study have proved they belonged to, at least, five hundred goats. fifty sheep, half a dozen swine and two dogs. These animals show affinity with others from the Neolithic and Protohistoric periods of North Africa. Therefore, the goat may be included in the mamber goat group (mambrinus group) and the shepp in "longipes" group, both of them mummified by the Egyptians. Possibly, the swine is similar to the one found in Toukh (Egypt) and the dog may be included in the Saharan Kabyle sheepdog characterized by its small size.

Huesos: una fuente histórica particular para conocer las relaciones de las personas con los animales

Programa de doctorado: Territorio y sociedad: evolución histórica de un espacio tricontinental (África, América y Europa) Póster ganador del premio del público.

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 590 - Antwortschreiben mit Angaben zur langjährigen Freundschaft mit Schopenhauer

u.a.: Empfehlung zur Nichtannahme der vorgeschlagenen Leibrente; Besuch in Hamburg; Aufenthalt in Trittau; Bibliothek; Fahrt in den Elsass;