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Cryoprotective effect of glycerol concentrations on Indian Red Jungle Fowl (Gallus gallus murghi) spermatozoa

Posted on 20. August, 2018.

Semen cryopreservation protocols for wild avian species need to be optimised in order to achieve optimum post-thaw sperm quality and fertility. The present study was designed to evaluate the cryoprotective effect of different glycerol concentrations (11%, 15% and 20%) on post-thaw quality, recovery rates, absolute livability index and fertility of Indian Red Jungle Fowl (Gallus gallus murghi) semen. 


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Diversity and distribution of avian lice on Greater Flamingo chicks (Phoenicopterus roseus) in Algeria

Posted on 20. December, 2013.

Interactions between wild birds and ectoparasites have received extensive attention by ecologists because the distribution and dynamics of parasites may drive population processes of their hosts by influencing survival and productivity. Areas of interest include the influence of host morphology and behaviour on ectoparasite numbers and distribution, and their vertical or horizontal transmission. Many studies reported that close proximity of individuals facilitates host infestation with colonial birds harbouring a large number and a great diversity of ectoparasites. Thus, chewing lice usually are transferred by direct contact and, less frequently, by louse flies.


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Predators and livestock reduce bird nest survival

Posted on 14. November, 2013.

High nest predation is one of the factors potentially driving farmland bird declines, particularly in the case of ground-nesting species. Accordingly, recent calls have been made to address predation in agri-environment schemes, but this is hindered by limited understanding of how processes operating at different scales affect predation patterns and how additional factors such as livestock trampling contribute to reduced nest survival.


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Oldest known avian footprints from Australia

Posted on 14. November, 2013.

Two thin-toed tridactyl tracks in a fluvial sandstone bed of the Eumeralla Formation (Albian) at Dinosaur Cove (Victoria, Australia) were likely made by avian trackmakers, making these the oldest known fossil bird tracks in Australia and the only Early Cretaceous ones from Gondwana. An analysis of the footprints is published in journal Palaeontology.


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Survival of Atlantic Puffins positively correlated with herring availability

Posted on 13. November, 2013.

Atlantic Herring is a keystone species in several marine ecosystems, supporting intensive fisheries as well as many predators including seabirds. Biomass of this stock in eastern North America has declined considerably in recent years, potentially putting at risk populations of its predators. Although adult survival in seabirds is considered robust to moderate changes in food availability, it is also the life-history component most critical to sustaining populations of long-lived birds.


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Insects as poultry feed

Posted on 13. November, 2013.

Should insect protein be allowed in poultry feed in the EU? At present, EU law prohibits the inclusion of protein derived from insects in animal feed, with the exception of feed intended for fish or shellfish. The EU-funded project PROteINSECT co-ordinated in the UK by FERA (The Food and Environment Research Agency) with partners in China, Africa and mainland Europe is working to change this legislation.


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Cuckoos barred feathers mimic raptors

Posted on 12. November, 2013.

New research shows that cuckoos have striped or "barred" feathers that resemble local birds of prey, such as sparrow hawks, that may be used to frighten birds into briefly fleeing their nest in order to lay their parasitic eggs.


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Decrease in prevalence of Salmonella on US chicken

Posted on 12. November, 2013.

According to US Department of Agriculture Food Safety and Inspection Service’s (FSIS) “Quarterly Progress Reports on Salmonella and Campylobacter Testing of Selected Raw Meat and Poultry Products” released on 25 October 2013, the prevalence of Salmonella on raw young chicken carcasses is down 34% over the first quarter of 2013 and represents a decrease of over 120% during the past five years.


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AVAILABLE NOW!

Posted on 23. May, 2013.

Selected papers from Nest Construction and Function 2012 on a handy credit-card sized USB drive.


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