Results 251 to 260 of about 489,438 (287)

The Microflora of Liquid Whole Egg Made from Incubator Reject Eggs

Journal of Applied Bacteriology, 1973
S ummary . The microflora of liquid whole egg made by centrifuging incubator reject shell eggs was investigated by examining a selection of colonies growing on different selective culture media.
W A, Mulder, M C, van der Hulst
openaire   +2 more sources

Sage Thrashers Reject Cowbird Eggs

The Condor, 1985
Actual and potential hosts of brood parasitism by Brownheaded Cowbirds (Molothrus ater) can be classified as either rejecters or accepters of cowbird eggs (Rothstein 1975, 1982a, b). Few North American species show intermediate responses (Rothstein 1982a).
Rich, Terrell, Rothstein, Stephen I.
openaire   +1 more source

Evaluation of chemical indices for the identification of incubator-reject eggs in egg products

Food Control, 2020
Abstract The use of incubator-reject eggs (IRE) is not allowed for the preparation of egg products. However, some producers fraudulently use them for whole egg products manufacture. The aim of this research was to study the efficiency of European legislative indices (β-hydroxybutyric acid and lactic acid), uracil, furosine and organic acids for IRE ...
Alyssa Hidalgo, Davide Galbiati, Daniele Cavanna, Michele Suman   +3 more
openaire   +1 more source

Egg Characteristics Affecting Egg Rejection

2017
We have reviewed the most important results relating to particular egg characteristics responsible for recognition and subsequent rejection by hosts of brood parasites. Hosts remove a foreign egg after determining that it differs in one or more parameters.
Marcel Honza, Michael I. Cherry
openaire   +1 more source

Occurrence of β‐hydroxybutyric acid in incubator reject eggs

Journal of the Science of Food and Agriculture, 1975
AbstractA simplified method for extraction of β‐hydroxybutyric acid from whole egg prepared from incubator reject eggs is described. It is concluded that the presence of 15.95 ± 8.54 mg of β‐hydroxybutyric acid per 100 g of liquid whole egg would strongly indicate that the egg had been prepared from incubator reject eggs.
D S, Robinson, E M, Barnes, J, Taylor
openaire   +2 more sources

Inferential reasoning and egg rejection in a cooperatively breeding cuckoo

Animal Cognition, 2014
Inferential reasoning-associating a visible consequence with an imagined event-has been demonstrated in several bird species in captivity, but few studies have tested wild birds in ecologically relevant contexts. Here, we investigate inferential reasoning by the greater ani, a cooperatively breeding cuckoo in which several females lay eggs in one nest.
Christina, Riehl, Meghan J, Strong, Scott V, Edwards   +2 more
openaire   +2 more sources

Cognitive Decision Rules for Egg Rejection

2017
Egg rejection is the best studied behavioral adaptation by hosts to avian brood parasitism. Investigations of the mechanism(s) by which a host accomplishes the task of perceiving and deciding to reject a foreign egg have been a hotbed of debate and discovery for decades.
Thomas Manna, Csaba Moskát, Mark E. Hauber   +2 more
openaire   +1 more source

Rejection of parasitic eggs by Yellow-bellied Prinias: importance of egg spot location

Journal of Ornithology, 2020
Characteristics of egg surfaces serve as recognition cues that allow avian hosts to detect and reject foreign eggs in brood parasitism. The blunt egg pole hypothesis suggests that the blunt egg pole is an essential signal in parasitic egg recognition.
Longwu Wang, Yu-Cheng Hsu, Wei Liang
openaire   +1 more source

Egg rejection in a passerine bird: size does matter

Animal Behaviour, 2000
Avian brood parasites reduce the reproductive success of their hosts, selecting for the evolution of egg discrimination by the host, and potentially creating a coevolutionary arms race between host and parasite. Host egg discrimination ability is crucial in determining whether the arms race results in extinction (of the parasite on a particular host ...
openaire   +2 more sources

Some further studies on incubator reject eggs

Journal of the Science of Food and Agriculture, 1976
AbstractIndividual incubated and unincubated unfertilised eggs and 18‐day incubator reject eggs have been measured by an improved assay for β‐hydroxybutyric acid. Concentrations below 0.2 mg/100 g egg were found consistently for unfertilised eggs whether they had been incubated or not; 18‐day incubator rejects included eggs with concentrations of β ...
Robert K. Heaney, R. Frank Curtis
openaire   +1 more source