Results 151 to 160 of about 622,603 (389)

Integrated Use of Oxidative Stress and Histological Biomarkers of T. tinca as Indicators of 17‐Alpha‐Ethynylestradiol Exposure

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The potential adverse effects of 17‐alpha‐ethynylestradiol (50, 100, and 500 μg EE2/kg b.w., for 30 days) on tench (Tinca tinca) were evaluated by integrating biomarkers including physiological (hepato‐somatic index, spleen‐somatic index, and hematocrit), oxidative stress (catalase, glutathione peroxidase, and glutathione reductase activities;
Ana L. Oropesa   +3 more
wiley   +1 more source

WELFARE, PRODUCTIVITY AND QUALITATIVE TRAITS OF EGG IN LAYING HENS REARED UNDER DIFFERENT REARING SYSTEMS [PDF]

open access: yes, 2006
The welfare, production performance and some qualitative characteristics of eggs obtained under three different rearing systems (conventional, organic and organic-plus) were compared. Three homogeneous groups, each of 120 White Leghorn hens, fed the same
CASTELLINI, prof C   +3 more
core  

Reproductive Traits of Zoo‐Bred and Wild‐Bred Eastern Massasaugas (Sistrurus catenatus) at Species Survival Plan® Conservation Breeding Centres and Other Facilities

open access: yesZoo Biology, EarlyView.
Based on 94 Massasauga litters born in human care, mean litter size and number of live young per litter were higher in wild‐bred than in zoo‐bred litters. Wild‐bred litters more often contained live young than did zoo‐bred litters. In zoo‐bred litters, dam mass was positively associated with above‐average reproductive output.
Jonathan D. Choquette   +5 more
wiley   +1 more source

Effect of Egg Yolk and Cooling on Storage of Ram Coated Spermatozoa

open access: yesپژوهشهای علوم دامی ایران, 2013
This study was conducted to evaluate the effect of egg yolk and cooling on ram coated spermatozoa. Semen was collected from three ram by artificial vagina contacted with a tube containing Tris- fructose-egg yolk 15%.
A. Mohammadi-Nohdehy   +1 more
doaj  

Hatching Plasticity in Captive‐Bred Pickersgill's Reed Frog, Hyperolius pickersgilli (Raw 1982)

open access: yesZoo Biology, EarlyView.
Husbandry methods should avoid disturbing Pickersgill's reed frog, Hyperolius pickersgilli (Raw, 1982) clutches to increase survival of the tadpoles. ABSTRACT The Pickersgill's reed frog, Hyperolius pickersgilli (Raw 1982), is an Endangered frog species endemic to a narrow central coastal region of KwaZulu‐Natal, South Africa.
Ayrelia Sheranè Randera   +3 more
wiley   +1 more source

Vitamin A-active substances in egg-yolk [PDF]

open access: green, 1935
A. E. Gillam, Isidor Morris Heilbron
openalex   +1 more source

The effect of Using Semen Diluter to Egg Fertility and Hatchability on Artificial Insemination to Produce Bekisar chicken (Crossbreed) Mentor [PDF]

open access: yes, 2005
TRI YUWONO H4A 003 017. The effect of Using Semen Diluter to Egg Fertility and Hatchability on Artificial Insemination to Produce Bekisar chicken (Crossbreed) Mentor (B.
Yuwono, Tri
core  

Pasteurization of Egg Yolk and White

open access: yesPoultry Science, 1947
Abstract THE production of frozen liquid egg products—whole egg, plain and treated yolk, and white—has increased steadily during the past several years. Winter, Greco and Stewart (1946) have shown that liquid whole egg can be successfully pasteurized for destruction of most of the bacteria present and for prolonging the keeping time, especially at ...
A. R. Winter, Marian Wilkin
openaire   +2 more sources

A multi‐trait evaluation of patterns and fitness consequences of breeding phenology plasticity with nocturnal warming and food restriction in a lizard

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Faced with climate warming, ectothermic species shift their breeding phenology, which is in part attributed to an acceleration of gestation or incubation in warmer environments.
Théo Bodineau   +7 more
wiley   +1 more source

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