Egg Laying
Nitric oxide induces aspects of egg laying behavior in Aplysia
... Egg laying in Aplysia and similar animals (Ferguson et ...lips. Egg laying has widespread interactions with other behaviors, such as feeding and withdrawal reflexes, which are inhibited during ...
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Antioxidant enzymes in the developing lungs of egg laying and metamorphosing vertebrates
... Similarly, the lungs of metamorphosing anurans are exposed to atmospheric oxygen tensions much earlier relative to development than mammalian embryos, and also than embryos of egg-laying vertebrates. ...
9
The life history of an egg laying mammal, the echidna
... Despite their near-ubiquitous Australian distribution, the echidna’s relatively small size, cryptic habit, and long life have made it difficult to make estimates of life history parameters such as average life span and ...
11
Egg laying hormone peptides in the aplysiidae family
... seasonal egg laying in Aplysia californica (Redman and Berry, 1991), which implies that α-BCP is autoinhibitory at typical winter temperatures, but becomes autoexcitatory as ocean temperatures rise in the ...
13
Communication from the Commission to the Council on the intensive keeping of egg-laying hens. Draft Council resolution on the protection of egg-laying hens in cages. COM (80) 406 final, July 1980.
... Whereas it is necessary, as a first step, to envisage the establishment of Community measures in order to assure the protection of egg Laying hens in cages; whereas to do this it is, how[r] ...
8
EGG-LAYING DEFECTIVE MUTANTS OF THE NEMATODE CAENORHABDITIS ELEGANS
... defective; SULSTON and HORVITZ 1981) and animals in which the HSNs have been ablated with a laser microbeam respond to serotonin but not to imipramine, our egg-laying defectiv[r] ...
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THE EFFECTS OF TEMPERATURE AND OF EGG-LAYING ON THE LONGEVITY OF DROSOPHILA SUBOBSCURA
... THE RATE OF EGG-LAYING AND THE RATE OF AGEING Since the expectation of life of females, but not of males, was increased by exposure to a high temperature, and since that exposure also ca[r] ...
11
Cues for communal egg-laying in lizards (Bassiana duperreyi, Scincidae)
... For a female lizard, the advantage of laying her eggs in a communal nest may entail 30 either information transfer hatched eggshells show that the site has been successful in 31 previous[r] ...
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Maternal effects mediated by egg quality in the Yellow-legged Gull Larus michahellis in relation to laying order and embryo sex
... two egg components along the laying sequence, since egg corticosterone did not vary with laying ...during laying of consecutive eggs may entail a cost for laying females in terms ...
15
Evaluation of nesting behavior of individual laying hens in an enriched colony housing by using RFID technology
... an egg, which is divided into the following: 4 h for addition of the albumen layers to the yolk as it passes along the oviduct; 5 h for the membranes formation in the tubular isthmus and absorption of water and ...
9
Concentrations and Settling Rates of Particulate Matter in Laying Hen Barns in the Hot Climatic Region of Cameroon
... in laying hen barns with cemented floors and wood shavings added as an initial bedding ...ventilated laying hen barns in Cameroon; a barn with 4 months old hens that had just stated laying eggs and a ...
8
Analysis of Changes in Egg Quality of Autochthonous Chicken Breed Oravka during Laying Period
... During laying cycle we found a significant increase in the yolk percentage from ...of laying period may indicate decrease of yolk ...during laying period ...of egg laying (22 weeks of ...
5
INDUCED CHANGES IN FEMALE GERM CELLS OF DROSOPHILA. II. OVIPOSITION RATE AND EGG MORTALITY IN RELATION TO INTENSITY AND DOSAGE OF X-RAYS APPLIED TO OOCYTES
... Unlike Experiment I, in which the absolute difference between the concentrated and diluted treatments in induced percent of mortality in the third egg-laying period was not ma[r] ...
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Spring phenology does not affect timing of reproduction in the great tit (Parus major)
... (Table1). Egg laying of great tits in Oxford, UK, is associated with oak bud burst and the first appearance of caterpillars (Jones, 1972; Perrins, 1965; van Noordwijk et ...Switzerland, laying dates ...
8
Bio-patterns and larval ontogeny of PAPILIO POLYTES (L.) on seven different host plants of rutaceae family
... Index, egg-laying patterns, hatching period, the number of instars the larva passed through, their duration, and pupal period, and development success of eggs to adult in the ...
8
Aspects of the brood reduction process of the Fiordland crested penguin, Eudyptes pachyrhynchus
... These observations lead me to conclude that - despite their atypical egg laying pattern -the tawaki studied on T aumaka Island produced the patterns of asynchronous hatching [r] ...
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Using C. elegans to screen for targets of ethanol and behavior-altering drugs
... the egg-laying behavior caused by ethanol was also described in our analysis of the slo-1 ethanol-resistant mutants ...affect egg laying to the same extent and therefore might be isolated in ...
7
Some aspects of the ecology of the fairy penguin Eudyptula minor novaehollandiae (Forster) in southern Tasmania
... BREEDING BIRDS PRESENT DURING THE EGG-LAYING PERIOD AT 85 NESPS OBSERVED AT THE NECK STUDY AREA IN 1960 AND 1961... Of FIRST ffib..[r] ...
123
Effect of emulsified fat powder on the laying performance, egg quality, serum biochemical parameters and antioxidant activity
... on laying performance, egg quality, serum biochemical parameters and antioxidant ...Rohman laying hens were randomly divided into 4 dietary treatments of 100 ...of egg laying and mean ...
6
Production and incubation in farmed emu (Dromaius novaehollandiae) : a thesis presented in partial fulfilment of the requirements for the degree of Masters [i e Master] of Sciences in Ecology at Massey University, Palmerston North, New Zealand
... Egg laying in emu may also be influenced by the broodiness of the male and can lead to a potential decrease in egg production. Some farmers state that once a male begins sitting on a nest he stops ...
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