scholarly journals A stereological study of the renal and adrenal glandular structure of red-legged partridge (Alectoris chukar)

2015 ◽  
Author(s):  
N. Colcimen ◽  
G. Cakmak
Keyword(s):  
Glandular Structure ◽  
Alectoris Chukar

Chukar (Alectoris chukar)

1996 ◽  
Author(s):  
Glen C. Christensen
Keyword(s):  
Alectoris Chukar

Must Desert Chukars (Alectoris chukar sinaica) Drink Water? Water Influx and Body Mass Changes in Response to Dietary Water Content

The Auk ◽  
1984 ◽  
Vol 101 (1) ◽  
pp. 47-52 ◽  
Author(s):  
A. Allan Degen ◽  
Berry Pinshow ◽  
Peter J. Shaw
Keyword(s):  
Drinking Water ◽  
Body Mass ◽  
Free Water ◽  
Energy Requirements ◽  
Fresh Matter ◽  
Alectoris Chukar ◽  
Water Influx ◽  
Green Vegetation ◽  
Body Mass Changes ◽  
Vegetation Water

Abstract The Chukar subspecies Alectoris chukar sinaica inhabits the Negev desert, which is characterized by hot, dry summers, and little winter rainfall. Vegetation is dry and dormant during the summer and autumn; green, succulent vegetation is available following winter rain. We studied whether or not and under what dietary conditions Chukars require drinking water. Four groups of Chukars in an outdoor aviary received either a dry ration + water, a dry ration + green vegetation, a dry ration + green vegetation + water, or green vegetation only. The birds offered only greens lost 15% of their body mass in the first 8 days and 2.9% over the next 6 days, while birds on the other three treatments maintained body mass. The birds receiving only greens had the highest total body water to body mass ratio and the highest water influx. We concluded that the Chukars receiving only green vegetation met their water requirements but not their maintenance energy requirements. Chukars fulfilled both their water and energy requirements on a dry ration + green vegetation (without drinking water); the green vegetation comprised approximately 60% of their total fresh matter intake, or 26% of their total dry matter intake. Our analysis suggests that wild desert Chukars do not require drinking water from early winter to late spring, when succulent forage is available, but probably need free water during summer and autumn, when the bulk of their diet is seeds.

scholarly journals Ontogeny of aerial righting and wing flapping in juvenile birds

2014 ◽  
Vol 10 (8) ◽  
pp. 20140497 ◽  
Author(s):  
Dennis Evangelista ◽  
Sharlene Cam ◽  
Tony Huynh ◽  
Igor Krivitskiy ◽  
Robert Dudley
Keyword(s):  
Force Production ◽  
Vertical Force ◽  
Alectoris Chukar ◽  
Avian Flight ◽  
Body Roll ◽  
Chukar Partridge

Mechanisms of aerial righting in juvenile chukar partridge ( Alectoris chukar ) were studied from hatching to 14 days-post-hatching (dph). Asymmetric movements of the wings were used from 1 to 8 dph to effect progressively more successful righting behaviour via body roll. Following 8 dph, wing motions transitioned to bilaterally symmetric flapping that yielded aerial righting via nose-down pitch, along with substantial increases in vertical force production during descent. Ontogenetically, the use of such wing motions to effect aerial righting precedes both symmetric flapping and a previously documented behaviour in chukar (i.e. wing-assisted incline running) hypothesized to be relevant to incipient flight evolution in birds. These findings highlight the importance of asymmetric wing activation and controlled aerial manoeuvres during bird development and are potentially relevant to understanding the origins of avian flight.

scholarly journals Nutritional value of breast and thigh muscle of chukar partridge (Alectoris chukar) under intensive fattening conditions

2012 ◽  
Vol 81 (3) ◽  
pp. 251-255 ◽  
Author(s):  
Radovan Jůzl ◽  
Pavel Suchý ◽  
Eva Straková ◽  
Lucie Rusníková ◽  
Miroslav Macháček ◽  
...  
Keyword(s):  
Chemical Analysis ◽  
Crude Protein ◽  
Nutritional Value ◽  
Live Weight ◽  
Thigh Muscle ◽  
Carcass Yield ◽  
Alectoris Chukar ◽  
Significant Difference ◽  
Gross Energy ◽  
Chukar Partridge

The aim of our study was to evaluate the nutritional value of the breast and thigh muscle of chukar partridge (Alectoris chukar) under intensive fattening conditions. Commercial feeding mixtures for broilers were used. Live weight of 60 partridges (birds were not sexed) was controlled during 90 days of fattening. After the fattening was finished, 30 birds were selected to monitor the carcass yield. Breast and thigh muscle were used for chemical analysis of crude protein (Kjeldahl method), total lipids (fat analyser ANKOMXT10), ash (Muffle furnace - 550° C) and gross energy (calorimetry). Average values ​​of live weight were increasing in the course of fattening; at the end of fattening the live weight reached 0.452 kg. The carcass yield, breast muscle yield and thigh yield were evaluated (73.72%, 18.09%, 20.80%, respectively). Chemical analysis showed a highly significant difference (P ≤ 0.01) between the breast and thigh muscle for crude protein, fat, ash and gross energy. The ash content demonstrated a significant difference (P ≤ 0.05) between the breast and thigh muscle. This study brings new data on the nutritional value of the meat of chukar partridge that can be used for reccomendation of a suitable feeding mixture.

Chukar (Alectoris chukar)

1996 ◽  
Author(s):  
Glen C. Christensen
Keyword(s):  
Alectoris Chukar
Sign in / Sign up

Export Citation Format

Share Document