Effect of dietary flax oil and hypobaric hypoxia on right ventricular hypertrophy and ascites in broiler chickens

Bond, J; Julian, R. J.; Squires, E. J.

doi:10.1080/00071669608417903

Cited by 15 publications

(14 citation statements)

References 24 publications

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“…Our experiment showed that the stress of high altitude decreased the chicken's initial weight, final weight, weight at inflection, maximal growth rate, absolute and relative growth rates, and retarded the time to inflection. The results were consistent with the report of the high altitude environment simulated using a hypobaric cabin (Bond et al, 1996;Durkot et al, 1996). Hypoxia is the main factor that influences chickens' growth at high altitude.…”

Section: Discussionsupporting

confidence: 94%

Influences of altitude on growth curves in Tibetan chicken and its hybrid

Zhang

Chamba³

et al. 2008

Front. Agric. China

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Tibetan chicken is a precious resource in Qinghai-Tibet Plateau, China. In order to study its growth rhythm and heterosis of its hybrid, three groups comprising Tibetan chicken (T), Dwarf Recessive White (D) and Tibetan 6 Dwarf Recessive White (TD) were reared under the same management conditions at low and high altitudes. Body weight and shank length were measured, and growth curves were fitted using Richards model. The results showed that the model fitted well with the chickens' growth courses in weight and shank with R 2 at more than 0.99. The high-altitude might retard the growth of chickens, with decreases in inflection point values, final values and maximal growth rates, and prolongation of inflection point time. The final weight, inflection point weight, and maximal growth rates of Tibetan chicken were 1008.3 g, 477.9 g and 11.69 g respectively at lowaltitude, and 525.3 g, 229.5 g, and 5.12 g at high-altitude. This showed a decline of 47.9%, 52.0%, and 56.8% at the high-altitude; the degree of influence of altitude was less than that of Dwarf Recessive White. The TD had high heterosis in weight gain, and at high-altitude the heterosis of final weight, inflection point weight, and maximal growth rates were 59.5%, 56.8% and 52.3% respectively. Therefore, the Tibetan 6 Dwarf Recessive White cross was good for improving the Tibetan chicken.

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Section: Discussionsupporting

confidence: 94%

Influences of altitude on growth curves in Tibetan chicken and its hybrid

Zhang

Chamba³

et al. 2008

Front. Agric. China

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“…This is supported by the fact that increased plasma HCY concentrations due to folate depletion resulted in decreased ω-3 fatty acids in platelets (Selhub 1999). These results are consistent with studies showing that dietary arginine (a precursor for nitric oxide), vitamin E and ω-3 fatty acid supplementation decreased AS in broilers Wideman et al 1995;Bond et al 1996). HCY may also contribute to atherogenesis by increasing vascular smooth muscle proliferation (Selhub 1999).…”

Section: Samuels -Diet Plasma Homocysteine and Mortality In Broilerssupporting

confidence: 79%

Diet, total plasma homocysteine concentrations and mortality rates in broiler chickens

Samuels¹

2003

Can. J. Anim. Sci.

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Samuels, S. E. 2003. Diet, total plasma homocysteine concentrations and mortality rates in broiler chickens. Can. J. Anim. Sci. 83: 601-604. The aim of this study was to determine if total plasma homocysteine (HCY) concentrations and mortality rates due to ascites syndrome and (AS) sudden death syndrome (SDS) in broiler chickens could be lowered by diet. Elevated plasma HCY is an independent risk factor for cardiovascular disease in humans. A total of 828 day-old male broiler chickens (Arbor Acre) were fed, for 6 wk, either a basal practical diet or one supplemented with excess vitamins B 6 and B 12 , folic acid and betaine to stimulate the degradation of HCY. The supplemented diet decreased plasma HCY by 17% (P < 0.05; n = 16 per diet). Total mortality due to AS and SDS was 18% lower in the supplemented diet but this difference was not statistically significant. La ration enrichie a réduit la concentration de HCY dans le sang de 17 % (P < 0,05; n = 16 par régime). Le taux de mortalité attribuable à l'AS et au SDS a baissé de 18 % avec la ration enrichie, mais cette variation n'est pas significative sur le plan statistique.

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“…It indicates that the birds were in a normal range as noted by Julian (1987). Studies conducted by other investigators show that increasing dietary ALA seems to be a potential way to reduce RVH leading to ascites (Walton et al, 1999), mortality and the incidence of ascites at a high altitude (Bond et al, 1996) and the incidence of pulmonary hypertension syndrome (Walton et al, 2001). Potential of diets rich in ALA to prevent sudden death needs to be fully evaluated in a large-scale commercial setting and in environment more conducive to causing sudden death syndrome.…”

Section: Heart Analysismentioning

confidence: 89%

“…Support for this comes from previous reports that feeding chickens diets containing 5% linseed oil reduced right ventricle hypotrophy (Walton et al, 1999) and pulmonary hypertension was reduced in birds fed a diet containing 10% linseed oil (Bond et al, 1996). The primary objective of the research was to examine the effects of diet containing high ALA on heart n-3 LCPUFA levels and the health status of the heart.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Diet Containing High Alpha-Linolenic Acid on Omega-3 Fatty Acids and Health Status of the Heart in Broilers

Kartikasari¹,

Hughes

Geier

et al. 2017

BuletinPeternak

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The objective of the study was to examine the effects of diet containing high alpha-linolenic acid (ALA) on omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) and the health status of heart in broilers. Diets were based on a commercial starter diet, with a low level of fat. The experimental diets contained two levels of ALA (2.23 and 19.37%), with the total fat content was approximately 5%. Pure or blended vegetable oils were included at a level of 2.8% in order to produce diets with the desired levels of linoleic acid (LA) and ALA. The ratio of LA to ALA of the diets was 9.75:1 for low ALA diet and 1.37:1 for high ALA diet. Each diet was provided ad libitum for the duration of the 28-d growth period. A total of 32 one-day-old chicks housed in four pens (n=8 birds/pen). At 28 days of age, six selected birds from each pen were weighed individually and hearts were collected for analysis. A ratio of right ventricle mass (RV) to total ventricle mass (TV) was used to indicate the health status of the heart. Results showed that dietary treatment increased the level of ALA in heart tissue from 0.1% (low ALA diet) to 0.5% (P<0.01). Increasing levels of dietary ALA raised the level of n-3 LCPUFA and total n-3 in heart tissues by 4-5-fold. There was no significant difference observed in the level of heart LA, arachidonic acid (AA) and total n-6. The increased levels of dietary ALA did not cause changes in the ratio of RV to total TV. In conclusion, it appears clear that based on our data, increasing ALA content in the diet of chickens could potentially be beneficial for the health of the birds; however, further work is necessary.(Keywords: Alpha-linolenic acid, Chicken heart, Health status, Omega-3 fatty acids) ALA (2,23 and 19,37%) INTISARI Penelitian dilakukan untuk mengetahui pengaruh pakan yang kaya akan kandungan asam alphalinolenat (alpha-linolenic acid, ALA, asam lemak n-3) terhadap kandungan asam lemak tak jenuh omega-3 rantai panjang (n-3 LCPUFA) dan status kesehatan jantung ayam. Pakan yang diberikan didasarkan pada pakan starter komersial yang mengandung lemak rendah. Pakan perlakuan terdiri dari dua aras

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Effect of dietary flax oil and hypobaric hypoxia on right ventricular hypertrophy and ascites in broiler chickens

Cited by 15 publications

References 24 publications

Influences of altitude on growth curves in Tibetan chicken and its hybrid

Influences of altitude on growth curves in Tibetan chicken and its hybrid

Diet, total plasma homocysteine concentrations and mortality rates in broiler chickens

The Effect of Diet Containing High Alpha-Linolenic Acid on Omega-3 Fatty Acids and Health Status of the Heart in Broilers

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