Reproductive performance, expression of TRAP6 and TGF-β4 genes in utero-vaginal junction mucosa, and indicators of liver function in female Chukar partridge (Alectoris chukar) breeders fed with fish oil and calcitriol during the egg-laying period

2021 ◽  
Vol 168 ◽  
pp. 50-58
Author(s):  
A. Abdollahi ◽  
A. Akhlaghi ◽  
M.J. Zamiri ◽  
S. Kargar ◽  
Z. Ansari Pirsaraei
Keyword(s):  
Liver Function ◽  
Fish Oil ◽  
Reproductive Performance ◽  
In Utero ◽  
Egg Laying ◽  
Alectoris Chukar ◽  
Chukar Partridge

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.

Changes in Carcass Traits, Meat Quality, Muscle Fiber Characteristics and Liver Function of Finishing Pigs Fed High Level of Fish Oil

2021 ◽  
Author(s):  
Qiuping Guo ◽  
Lingyu Zhang ◽  
Yehui Duan ◽  
Wenlong Wang ◽  
Ruilin Huang ◽  
...  
Keyword(s):  
Liver Function ◽  
Fish Oil ◽  
Muscle Fiber ◽  
Carcass Traits ◽  
Basal Diet ◽  
Longissimus Dorsi ◽  
Fresh Fish ◽  
Longissimus Dorsi Muscle ◽  
Dorsi Muscle ◽  
Oxidized Fish Oil

The study was aimed to investigate the changes in carcass traits, meat quality, muscle fiber characteristics and liver function in pigs fed with high levels of fresh fish oil and oxidized fish oil. Thirty piglets were randomly assigned to receive basal diet plus 2% fish oil (LFO), basal diet plus 8% fish oil (HFO) or basal diet plus 8% oxidized fish oil (OFO) for 120 days. Pigs of the HFO and OFO group showed reduced carcass weight, dressing percentage, loin eye area and increased yellowness of the longissimus dorsi muscle compared with LFO group (P < 0.05). Dietary HFO and OFO suppressed the relative expression levels of myosin heavy chain (MyHC) isoform (Ⅰ and Ⅱa), glutathione peroxidase 4, and NAD(P)H: quinone oxidoreductase-1 and mitochondrial biogenesis in longissimus dorsi muscle (P < 0.05). Dietary HFO or OFO increased the serum aspartates aminotransferase, alanine aminotransferase, total bilirubin, direct bilirubin, oxidized low-density lipoprotein, liver index and concentration of malondialdehyde (MDA) in liver (P < 0.05). In conclusion, high levels of fresh fish oil and oxidized fish oil have adverse effects on carcass traits, muscle fiber characteristics and liver function, which may be partly due to the mitochondrial dysfunction and impaired antioxidative capacity.

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.

scholarly journals Genistein improves the reproductive performance and bone status of breeder hens during the late egg-laying period

2019 ◽  
Vol 98 (12) ◽  
pp. 7022-7029 ◽  
Author(s):  
Z.P. Lv ◽  
S.J. Yan ◽  
G. Li ◽  
D. Liu ◽  
Y.M. Guo
Keyword(s):  
Reproductive Performance ◽  
Egg Laying ◽  
Bone Status ◽  
Breeder Hens

The early bird catches the worm: age-specific arrival time influences reproductive performance in the White Stork Ciconia ciconia

Bird Study ◽  
2019 ◽  
Vol 66 (1) ◽  
pp. 121-129
Author(s):  
Bourhane-Eddine Belabed ◽  
Mohammed Athamnia ◽  
Laïd Touati ◽  
Farrah Samraoui ◽  
Abdennour Boucheker ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Age Groups ◽  
Egg Laying ◽  
White Stork ◽  
Laying Date ◽  
First Year ◽  
Arrival Date ◽  
Breeding Colony ◽  
Ciconia Ciconia ◽  
The Impact

<sec><title>Capsule</title>Age, arrival date and egg laying date are essentially closely related and determine reproductive performance in the White Stork Ciconia ciconia.</sec><sec><title>Aims</title>To describe the impact of age, arrival date and egg laying date on breeding success in the White Stork.</sec><sec><title>Methods</title>Ringing data from a White Stork breeding colony of 212 nests at Dréan, Algeria, were used to model the relationship between age, arrival date, laying date and reproductive performance. Seventy breeders that were individually colour-ringed as nestlings were monitored.</sec><sec><title>Results</title>Birds breeding on the periphery of the colony had significantly smaller nests and showed a tendency towards later laying dates, but they did not differ from centrally nesting birds in age or arrival date. First year birds did not breed and second year birds were significantly more likely than older age groups to occupy nests but fail to lay eggs. Older birds arrived earlier at the breeding colony and had a higher probability of initiating laying than younger birds. They also had a higher probability of nesting successfully and fledging a larger number of young.</sec><sec><title>Conclusion</title>Age determined arrival and laying dates and influenced breeding performance in the White Stork.</sec>

scholarly journals A Retrospective Analysis of the Effect of Combination of Pure Fish Oil with Third Generation Lipid Emulsion on Liver Function in Children on Long-Term Parenteral Nutrition

Nutrients ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2495
Author(s):  
Mikołaj Danko ◽  
Aleksandra Żyła-Pawlak ◽  
Janusz Książyk ◽  
Katarzyna Olszewska-Durkacz ◽  
Marta Sibilska ◽  
...  
Keyword(s):  
Liver Disease ◽  
Liver Function ◽  
Parenteral Nutrition ◽  
Fish Oil ◽  
Retrospective Analysis ◽  
Lipid Emulsion ◽  
Intestinal Failure ◽  
Third Generation ◽  
Glutamyl Transferase

Background: Deterioration of liver function, or intestinal failure-associated liver disease, is often observed in long-term parenterally fed children. Fish oil-based intravenous lipids have been reported to play a role in the prevention and treatment of intestinal failure associated liver disease. Methods: This retrospective analysis included 40 pediatric patients, (20 male and 20 female), median age 38 months (range 1.5–200 months) on long-term (≥1 month) parenteral nutrition who received the parenteral mixtures containing a combination of a third-generation lipid emulsion and pure fish oil because of laboratory liver function abnormalities. The total dose of fish oil from both emulsions for each patient exceeded 0.5 g/kg/day. Data from visits in an outpatient clinic were retrospectively analyzed using the Wilcoxon test, Mann-Whitney test, and Spearman correlation test. Results: The median time of therapy was 149 days (range 28–418 days). There was a decrease of median total and direct (conjugated) bilirubin concentration from 22.23 µmol/L (range 3.42–243 µmol/L) to 10.26 µmol/L (range 3.42–180.58 µmol/L; p < 0.005) and 8.55 (range 1.71–212.04 µmol/L) to 6.84 µmol/L (range 1.71–150.48 µmol/L; p < 0.007) respectively. A significant decrease in median alanine aminotransferase, aspartate aminotransferase and gamma-glutamyl transferase was also observed. In 11 patients bilirubin concentrations increased or remained unchanged. When compared to the patients who responded to the combination therapy, the patients who did not respond received parenteral nutrition for a longer time prior to the start of the therapy (51 vs. 30 months; p < 0.05). Conclusions: The mixture of an intravenous lipid emulsion containing soybean oil, medium-chain triglycerides, olive oil, and fish oil with the addition of pure fish oil emulsion may be helpful in the treatment of liver complications in children on long-term parenteral nutrition.

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