scholarly journals Interactive effects of dietary lipids and vitamin E level on performance, blood eicosanoids, and response to mitogen stimulation in broiler chickens of different ages

2017 ◽  
Vol 96 (2) ◽  
pp. 359-369 ◽  
Author(s):  
P. Konieczka ◽  
M. Barszcz ◽  
N. Chmielewska ◽  
M. Cieślak ◽  
M. Szlis ◽  
...  
Keyword(s):  
Vitamin E ◽  
Broiler Chickens ◽  
Dietary Lipids ◽  
Interactive Effects ◽  
Mitogen Stimulation ◽  
Different Ages

scholarly journals Interactive Effects of Ammonia and Light Intensity on Hematochemical Variables in Broiler Chickens

2008 ◽  
Vol 87 (7) ◽  
pp. 1407-1414 ◽  
Author(s):  
H.A. Olanrewaju ◽  
J.P. Thaxton ◽  
W.A. Dozier ◽  
J. Purswell ◽  
S.D. Collier ◽  
...  
Keyword(s):  
Light Intensity ◽  
Broiler Chickens ◽  
Interactive Effects

The effect of polyphenols and vitamin E on the antioxidant status and meat quality of broiler chickens exposed to high temperature

2019 ◽  
Vol 73 (2) ◽  
pp. 111-126 ◽  
Author(s):  
Magdalena Mazur-Kuśnirek ◽  
Zofia Antoszkiewicz ◽  
Krzysztof Lipiński ◽  
Joanna Kaliniewicz ◽  
Sylwia Kotlarczyk ◽  
...  
Keyword(s):  
High Temperature ◽  
Vitamin E ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Antioxidant Status

scholarly journals Co-adjustment of yolk antioxidants and androgens in birds

2016 ◽  
Vol 12 (11) ◽  
pp. 20160676 ◽  
Author(s):  
Mathieu Giraudeau ◽  
Simon Ducatez
Keyword(s):  
Oxidative Stress ◽  
Comparative Analysis ◽  
Vitamin E ◽  
Indirect Effects ◽  
Egg Yolk ◽  
Developmental Trajectory ◽  
Interactive Effects ◽  
Phenotypic Traits ◽  
Direct And Indirect Effects ◽  
Egg Components

Mothers can shape the developmental trajectory of their offspring through the transmission of resources such as hormones, antioxidants or immunoglobulins. Over the last two decades, an abundant literature on maternal effects in birds has shown that several of these compounds (i.e. androgens, glucocorticoids and antioxidants) often influence the same offspring phenotypic traits (i.e. growth, immunity or oxidative stress levels), making interaction effects between egg components a likely scenario. However, the potential interactive effects of maternally transmitted compounds on offspring development and potential co-adjustment of these compounds within an egg are still poorly understood. Here, we report the results of an interspecific comparative analysis on birds' egg yolk composition (i.e. androgens and antioxidants) where we found that yolk carotenoid and vitamin E concentrations are positively associated, supporting the hypothesis that these two antioxidants act in synergy. The concentrations of vitamin E also increased with increasing concentrations of testosterone. This last result confirms the emerging idea that androgens and antioxidants are co-adjusted within eggs and that maternally transmitted antioxidants might limit the potential direct and indirect effects of prenatal exposure to high testosterone levels on oxidative stress.

The effect of reduction or removal of dietary vitamin supplement on broiler chickens performance

2005 ◽  
Vol 2005 ◽  
pp. 167-167
Author(s):  
H. A. Yousefzadeh ◽  
I. Yousefian ◽  
B. Navidshad ◽  
M. Safari
Keyword(s):  
Vitamin E ◽  
Adverse Effects ◽  
Broiler Chickens ◽  
Feed Additives ◽  
Dietary Vitamin ◽  
Vitamin Supplement ◽  
Feed Ingredients ◽  
Naturally Occurring ◽  
Performance Reduction ◽  
Reasonable Proportion

While vitamins naturally occurring in plant and animal based feed ingredients can supply a reasonable proportion of the birds daily needs, their contribution is rarely considered during formulation. This situation arises due to variability, especially in cereals and vegetable proteins, for example, the vitamin E content of corn can vary from 10 to 40 IU/kg. Because of this uncertainty in the natural supply of vitamins within a feed, the bird’s vitamin supply is therefore met by the addition of synthetic vitamins, usually in the form of a so called premix, that contains all vitamins and perhaps some other micronutrients and feed additives. This premixes use according to producer suggestions and in some cases their doses can be higher than real requirements. Skinner et al (1992) removed vitamin premixes from 21 day of age and did not report any adverse effects. Gwyther et al (1992) showed sever performance reduction by vitamin premix withdrawal from 21 to 49 day of age. This experiment was conducted to determine the effects of Vitamin supplement levels on broiler chickens from 28 to 49 days of age.

scholarly journals Feeding dihydroquercetin and vitamin E to broiler chickens reared at standard and high ambient temperatures

2020 ◽  
Vol 74 (6) ◽  
pp. 496-511 ◽  
Author(s):  
Vasil Radoslavov Pirgozliev ◽  
Stephen Charles Mansbridge ◽  
Conor Andrew Westbrook ◽  
Sarah Louise Woods ◽  
Stephen Paul Rose ◽  
...  
Keyword(s):  
Vitamin E ◽  
Broiler Chickens ◽  
Ambient Temperatures

Inclusion of bovine lipoproteins and the vitamin E analogue, Trolox, during in vitro culture of bovine embryos changes both embryo and fetal development

2012 ◽  
Vol 24 (2) ◽  
pp. 309 ◽  
Author(s):  
J. A. Rooke ◽  
R. G. Watt ◽  
C. J. Ashworth ◽  
T. G. McEvoy
Keyword(s):  
Vitamin E ◽  
In Vitro Culture ◽  
Fetal Development ◽  
Fatty Acid Content ◽  
Liver Weight ◽  
Fetal Weight ◽  
Interactive Effects ◽  
Bovine Embryo ◽  
Zygote Development

This experiment investigated effects of lipoproteins and Trolox (vitamin E analogue) on bovine embryo and fetal development. The treatments were: in vitro culture (IVC) in synthetic oviducal fluid alone (SOF); with bovine lipoproteins (2% v/v; SOFLP); with Trolox (100 μM; SOFT); and with lipoproteins and Trolox (SOFLPT). In vitro culture with lipoproteins increased fatty acid content of blastocysts (P < 0.001) whereas inclusion of Trolox had no effect (P > 0.05). Whereas lipoproteins reduced zygote development to blastocysts (P = 0.03), Trolox facilitated increased development (P < 0.001) and counteracted the reduction observed with lipoproteins (interaction, P = 0.009). Lipoproteins also compromised (P < 0.001) but presence of Trolox (P > 0.05) had no effect on blastocyst morphological grade. Pregnancy rates resulting from synchronous transfer of IVP embryos were not affected by IVC treatment. At Day 70 of pregnancy, compared with SOF, fetal weight was lower in SOFLP but not SOFLPT (interaction, P < 0.001). Liver weight (g kg–1 fetal weight) was greater (P = 0.03) in treatments containing Trolox. Placentome numbers were greater in SOF and SOFLPT compared with SOFLP and SOFT (interaction, P = 0.002); superior embryo grades were also associated with increased numbers of placentomes (P = 0.024). In conclusion, the interactive effects of lipoprotein and Trolox inclusion on in vitro embryo development were also evident in fetal development at Day 70.

The Effect of Vitamin E on Cellulitis in Broiler Chickens Experiencing Scratches in a Challenge Model

2000 ◽  
Vol 44 (3) ◽  
pp. 701 ◽  
Author(s):  
K. S. Macklin ◽  
R. A. Norton ◽  
J. B. Hess ◽  
S. F. Bilgili
Keyword(s):  
Vitamin E ◽  
Broiler Chickens
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