Controlled reproduction inAnguilla anguilla(L.): comparison between spontaneous spawning and stripping-insemination approaches

2015 ◽  
Vol 47 (10) ◽  
pp. 3052-3060 ◽  
Author(s):  
Andrea Di Biase ◽  
Antonio Casalini ◽  
Pietro Emmanuele ◽  
Michaela Mandelli ◽  
Pieter Mark Lokman ◽  
...  
Keyword(s):  
Spontaneous Spawning ◽  
Controlled Reproduction

Domestizierung im Vergleich

2016 ◽  
Vol 7 (2) ◽  
pp. 93-110 ◽  
Author(s):  
Erhard Schüttpelz
Keyword(s):  
Hunter Gatherers ◽  
Controlled Reproduction

"Domestizierung lässt sich durch einen Nukleus aus drei technischen Tätigkeiten definieren: durch die gesteuerte Reproduktion, die eigens eingerichtete Ernährung und den Schutz von Tieren und Pflanzen vor Schädigungen. Wenn man diese Definition an einen Vergleich von Kulturen und Kollektiven anlegt, stellen sich zwei Überraschungen ein: Außerhalb jeder Domestizierung entwickeln Wildbeuter eine rituelle Domestizierung oder ein mythologisches Verständnis, ihre Welt sei bereits domestiziert. Und in der Moderne tritt an die Seite der technischen Domestizierung ihre mögliche Naturalisierung. Der Aufsatz zieht einige Konsequenzen aus diesem typologischen Vergleich. Domestication can be defined by a nucleus of three technical activities: controlled reproduction and nutrition as well as protection of animals and plants from damage. If one applies this definition to a comparison of cultures and collectives, two surprises arise: Without being in touch of any kind of domestication, hunter-gatherers develop a ritual domestication or a mythological understanding that their world already is domesticated. And in modernity, possible naturalization arises at the side of technical domestication. The paper draws some conclusions from this typological comparison. "

APPLICATION OF CONTROLLED REPRODUCTION TO SHEEP FLOCKS IN NEWFOUNDLAND

1982 ◽  
Vol 62 (3) ◽  
pp. 679-687 ◽  
Author(s):  
J. N. B. SHRESTHA ◽  
L. AINSWORTH ◽  
D. P. HEANEY ◽  
A. N. SMITH
Keyword(s):  
Key Words ◽  
Reproductive Performance ◽  
Field Conditions ◽  
Spring Season ◽  
Fall Season ◽  
Controlled Reproduction

A 3-yr study demonstrates that commercially acceptable reproductive performance can be achieved in breeding sheep following the application of a fluorogestone-acetate- (FGA-) impregnated intravaginal sponge and pregnant mare's serum gonadotrophin (PMSG) treatment to induce a synchronized estrus under field conditions. Overall fertility, prolificacy and fecundity levels of 76%, 1.92 and 148%, respectively, resulted from breeding at the synchronized estrus, and 94%, 1.86 and 175%, respectively, due to breeding at the synchronized and subsequent estruses in the breeding (fall) season. In the nonbreeding (spring) season, these responses were 51%, 1.73 and 88%, respectively, at the synchronized estrus, and 63%, 1.61 and 109%, respectively, due to breeding at the synchronized and subsequent estruses. Significant farm-to-farm variation was observed with reproductive performance ranging from 77 to 100% for fertility, 1.45 to 2.74 for prolificacy, and 134 to 274% for fecundity in the estrous season. There were no significant differences among farms after synchronization and breeding during the anestrous season. Key words: Sheep, synchronization, fluorogestone acetate, pregnant mare's serum gonadotrophin, season, farm flocks.

Controlled reproduction in the wild European eel (Anguilla anguilla): two populations compared

2012 ◽  
Vol 21 (5) ◽  
pp. 1045-1063 ◽  
Author(s):  
Oliviero Mordenti ◽  
Andrea Di Biase ◽  
Giuseppe Bastone ◽  
Rubina Sirri ◽  
Annalisa Zaccaroni ◽  
...  
Keyword(s):  
Anguilla Anguilla ◽  
European Eel ◽  
In The Wild ◽  
Controlled Reproduction ◽  
Two Populations

The first spontaneous spawning of European hakeMerluccius merlucciusL.: characteristics of eggs and early larval stages

2011 ◽  
Vol 43 (11) ◽  
pp. 1729-1733 ◽  
Author(s):  
Francisco Javier Sánchez ◽  
Rosa Cal ◽  
Juan José Otero ◽  
María Jesús Lago ◽  
Castora Gómez ◽  
...  
Keyword(s):  
Larval Stages ◽  
Spontaneous Spawning
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