Results 141 to 150 of about 673,250 (353)

A Triple-yolk Egg

open access: yesPoultry Science, 1932
Abstract EGGS containing two yolks are found frequently and have been described by numerous workers. In most instances a double-yolk egg is abnormally large and can further be distinguished by candling. Recently an egg was found on the growing range of the West Virginia Agricultural Experiment Station at Morgantown laid by a pullet hatched March ...
openaire   +1 more source

Effect of bird age and storage system on physical properties of eggs from brown laying hens [PDF]

open access: yes, 2010
A total of 108 eggs from a group of 100 brown laying hens housed in standard cages were analyzed. Thirty-six eggs were retired when the hens had 30 week of age, other 36 eggs were retired when the hens had 35 week of age and the remaining 36 eggs were ...
Buxade Carbo, Carlos   +4 more
core   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

open access: yesInsect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami   +2 more
wiley   +1 more source

Breeding and larval rearing of the milkfish Chanos chanos (Pisces: Chanidae) [PDF]

open access: yes, 1977
Contribution No. 11 of the Aquaculture Department, Southeast Asian Fisheries Development Center, P.O. Box 256, Iloilo City 5901, Philippines.Two sexually maturing female milkfish were captured in April 1977 and induced to spawn by means of acetone-dried ...
Barnes, M.M.L.   +7 more
core   +1 more source

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

open access: yesActa Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi   +6 more
wiley   +1 more source

The Effect of Addition Pineapple Peel Meal (Ananas comosus (L) Merr) in Diet on Total Egg and Egg Duck Quality

open access: yesJurnal Ilmu dan Teknologi Hasil Ternak, 2012
The aim of this research was to study the effect of addition pinneapple peel meal in diet on total egg and egg quality duck. Materials of the research were 60 mojosari ducks at seven months old.
Muharlien Muharlien   +2 more
doaj  

Changes in gastrointestinal motility and gut hormone secretion after Roux‐en‐Y gastric bypass and sleeve gastrectomy for individuals with severe obesity

open access: yesClinical Obesity, Volume 15, Issue 2, April 2025.
Summary Background Bariatric surgery is very effective in long‐term weight management. The present study was undertaken to investigate the short‐term effects of sleeve gastrectomy (SG) and of Roux‐en‐Y gastric bypass (RYGB) on (a) gastrointestinal (GI) motility, that is gastric emptying and oro‐cecal transit time and (b) secretion of regulatory gut ...
Jennifer A. Wilbrink   +4 more
wiley   +1 more source

Retinoic Acid Signalling Regulates Zebrafish Tooth Germ Repair Following Injury

open access: yesCell Proliferation, EarlyView.
Retinoic acid signalling may regulate the repair processes in a tooth germ injury model using Tg(scpp5:Dendra2‐NTR) zebrafish and the nitroreductase (NTR)/metronidazole (MTZ) system. ABSTRACT Although the role of retinoic acid (RA) signalling in odontogenesis is well established, its involvement in the repair of injured tooth germs remains unclear.
Qiqi Liu   +4 more
wiley   +1 more source

Ovarian growth and ovulation in the mature blue crab, Callinectes sapidus Rathbun [PDF]

open access: yes, 1942
Introduction. Observations: structure of the ovary during the periods of growth and ovulation in the mature crab (stages 1-5).
Hard, W.L.
core  

Impact of Host and Food Availability on Life‐History Traits in Six Egg Parasitoid Species of the Genus Trichogramma

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
In this study we measured the impact of access to sugar and hosts on the longevity and fecundity of six Trichogramma species: T. cacoeciae, T. chilonis, T. minutum, T. leptoparameron, T. pintoi and T. sibericum. The impact of food differed among species, but there was a general tendency of increased life expectancy and potential fecundity with sugar ...
Véronique Martel   +2 more
wiley   +1 more source

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