scholarly journals Influence de l’huile de soja sur le poids et la taille des œufs des poules pondeuses « Warren »

2020 ◽  
Vol 156 ◽  
pp. 16071-16077
Author(s):  
Clarisse Kinonton KONE YELAKAN ◽  
René Ahua KOFFI ◽  
Louis Guichard BOHOUA
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Soybean Oil ◽  
Laying Hens ◽  
Essential Fatty Acids ◽  
Egg Laying ◽  
Poultry Feed ◽  
Poultry Production ◽  
High Concentration ◽  
Acides Gras

La qualité des aliments de ponte est l’élément le plus important duquel dépendent les caractéristiques physiques et nutritionnelles des œufs. L’incorporation d’huiles végétales dans l’alimentation des pondeuses confère à cette alimentation, un apport en acides gras essentiels tel que l’acide linoléique. L’huile de soja est une huile végétale riche en acides gras polyinsaturés et a une forte concentration en acide linoléique, essentiel au bon fonctionnement de la ponte. Objectif : Ce présent travail se propose d’évaluer les effets de la supplémentation des aliments ponte à l’huile de soja sur le poids et la taille des œufs de poules pondeuses Warren. Méthodologie et résultats : L’expérience a porté sur 150 Warren de 20 semaines d’âge (entrée en ponte), scindés en 3 lots de 50 poules chacun. L’huile de soja a été introduite dans les aliments à raison de 0% (Lot 1 : Témoin), 2% (Lot 2) et 4% (Lot 3). Les aliments ainsi fabriqués ont été distribués quotidiennement aux poules. Les premières données de l’expérience ont été recueillies après un mois de ponte (25e semaine). Ces données ont permis de déterminer le poids et la taille des œufs collectés. Après 7 mois d’expérience, les résultats ont montré qu’une supplémentation de 2% et 4% d’huile de soja a permis d’améliorer le poids respectivement de 2,49 g et 1.36 g. Pour la taille des œufs, l’incorporation d’huile de soja à 2% et 4% donne des valeurs similaires mais supérieures à celles du lot témoins (0%). Conclusions et application des résultats : L’huile de soja se présente donc comme un outil d’amélioration du rendement des productions avicoles. Une application de l’utilisation de cette huile dans l’alimentation des volailles serait un atout pour le secteur avicole et permettra une amélioration du revenu des producteurs Mots clés : Aliments de ponte, huile de soja, acide linoléique, œufs. Yelakan et al., J. Appl. Biosci. 2020 Influence de l’huile de soja sur le poids et la taille des œufs des poules pondeuses « Warren » 16072 Influence of soybean oil on the weight and size of the eggs of laying hens "warren" ABSTRACT The quality of the laying feed is the most important element on which the physical and nutritional characteristics of eggs depend. The incorporation of vegetable oils in the diet of the layers gives this diet a supply of essential fatty acids such as linoleic acid. Soybean oil is a vegetable oil rich in polyunsaturated fatty acids and has a high concentration of linoleic acid, which is essential for proper egg laying function. Objective: This present work aims to evaluate the effects of soybean oil laying feed supplementation on the weight and size of eggs from Warren laying hens. Methodology and results: The experiment involved 150 Warren 20 weeks old (entry laying egg), divided into 3 lots of 50 hens each. Soybean oil was introduced into foods at a rate of 0% (Lot 1: Control), 2% (Lot 2) and 4% (Lot 3). The feed thus produced was daily distributed to the hens. The first data of the experiment were recorded after one month of laying (25th week). These data allowed to determine the weight and size of the collected eggs. After 7 months of experience, results showed that supplementation of 2% and 4% soybean oil improved respectively the weight to 2.49 g and 1.36 g. For the size of the eggs, the incorporation of 2% and 4% soybean oil gives similar values but higher than those of the control lot (0%). Conclusions and application of the results: Soybean oil is therefore seen as a mean for improving the yield of poultry production. An application of the use of this oil in poultry feed would be an asset for the poultry sector and will improve the income of producers. Key words: egg laying feed, soybean oil, linoleic acid, eggs

scholarly journals Fatty acid chemistry of Atrichum undulatum and Hypnum andoi

2012 ◽  
Vol 66 (2) ◽  
pp. 207-209 ◽  
Author(s):  
Boris Pejin ◽  
Ljubodrag Vujisic ◽  
Marko Sabovljevic ◽  
Vele Tesevic ◽  
Vlatka Vajs
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Stearic Acid ◽  
Palmitic Acid ◽  
Linolenic Acid ◽  
Essential Fatty Acids ◽  
Behenic Acid ◽  
Moss Species

The fatty acid composition of the moss species Atrichum undulatum (Hedw.) P. Beauv. (Polytrichaceae) and Hypnum andoi A.J.E. Sm. (Hypnaceae) collected in winter time were analyzed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) as a contribution to their chemistry. Eight fatty acids were identified in the chloroform/methanol extract 1:1 of A. undulatum (linoleic acid 26.80%, palmitic acid 22.17%, ?-linolenic acid 20.50%, oleic acid 18.49%, arachidonic acid 6.21%, stearic acid 3.34%, cis-5,8,11,14,17-eicosapentaenoic acid 1.52% and behenic acid 1.01%), while six fatty acids were found in the same type of extract of H. andoi (palmitic acid 63.48%, erucic acid 12.38%, stearic acid 8.08%, behenic acid 6.26%, lignoceric acid 5.16% and arachidic acid 4.64%). According to this study, the moss A. undulatum can be considered as a good source of both essential fatty acids for humans (linoleic acid and ?-linolenic acid) during the winter.

Milk production and milk composition of dairy cows fed Lac100® or whole flaxseed

2005 ◽  
Vol 85 (3) ◽  
pp. 413-416 ◽  
Author(s):  
F. B. Cavalieri ◽  
G. T. Santos ◽  
M. Matsushita ◽  
H. V. Petit ◽  
L. P. Rigolon ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Soybean Oil ◽  
Dairy Cows ◽  
Key Words ◽  
Linolenic Acid ◽  
Milk Production ◽  
Milk Composition ◽  
Alpha Linolenic Acid ◽  
Calcium Salts

Cows were fed whole flaxseed or calcium salts of soybean oil as a fat source. Cows fed flaxseed had lower (P < 0.01) milk yield and higher (P < 0.01) percentages of fat and protein than cows fed calcium salts. Feeding whole flaxseed and calcium salts of soybean oil increased, respectively, the concentrations of alpha-linolenic acid and conjugated linoleic acid in milk. Key words: Flaxseed, fatty acids, fat supplement

scholarly journals The effect of dihomo-γ-linolenic acid (20: 3, n-6) on the composition of phospholipid fatty acids in the liver of rats deficient in essential fatty acids

1978 ◽  
Vol 40 (1) ◽  
pp. 155-157 ◽  
Author(s):  
A. G. Hassam ◽  
M. A. Crawford
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Linolenic Acid ◽  
Essential Fatty Acid ◽  
Essential Fatty Acids ◽  
Phospholipid Fatty Acids ◽  
Phospholipid Fraction ◽  
Liver Phospholipid ◽  
Dietary Energy

1. Rats were fed on either a diet deficient in essential fatty acid (EFA) or one supplemented with dihomo-γ-linolenic acid (20:3,n-6) at levels that represented 0.25, 0.5, 1.0 and 2.0% of the dietary energy.2. Supplementation of the diet of EFA-deficient animals with 20:3,n-6 reversed most of the fatty acid changes induced in the liver phospholipid fraction.3. The EFA potency of 20:3,n-6 was found to be similar to that of γ-linolenic acid (18:3,n-6) which has been shown to be higher than that of linoleic acid (18:2,n-6).

Study on Antioxidant Activities of Pinus armandi franch Seed Oil

2013 ◽  
Vol 634-638 ◽  
pp. 1294-1301
Author(s):  
Jian Xia Guo ◽  
Chang Lu Wang ◽  
Zhi Jian Wu
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Seed Oil ◽  
Antioxidant Activities ◽  
Essential Fatty Acids ◽  
Lipid Peroxide ◽  
Normal Diet ◽  
Sod Activity ◽  
Total Fatty Acids ◽  
Pharmaceutical Properties

Pinus armandi franch is a unique specialty plant in China and its seed oil contains high levels of essential fatty acids (EFA), particularly linoleic acid (LA), which has several pharmaceutical properties. Pinus armandi franch seed oil is a nice resource of linoleic acid with a content of 63% of the total fatty acids. Linoleic acid is an essential fatty acid, whose absence in a normal diet is responsible for the development of various abnormal disorders. This work reported purified LA from Pinus armandi franch seed oil could lower MDA content of lipid peroxidation on rats with hyperlipidemia significantly. TAC activity of liver, heart and serum was enhanced significantly, as well as SOD activity was increased. It demonstrated purified LA from Pinus armandi franch seed oil could improve antioxidant levels of hyperlipidemia rats effectively, enhance the activity of antioxidant enzyme and reduce the content of lipid peroxide, thereby improving lipid metabolism.

L'induction chez Ceratocystis de fructifications de types Graphium et Leptographium par des acides gras insaturés

1977 ◽  
Vol 55 (16) ◽  
pp. 2159-2167 ◽  
Author(s):  
Yolande Dalpé ◽  
Peterjürgen Neumann
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Linolenic Acid ◽  
Unsaturated Fatty Acids ◽  
Optimal Concentration ◽  
Natural Substrate ◽  
Acides Gras ◽  
Imperfect State ◽  
Intraspecific Difference

The unsaturated fatty acids oleic, linoleic, and linolenic induce the formation of the imperfect state of fructification of the Graphium type (coremia) with Ceratocystis ulmi and C. piceae and the Leptographium type with C. penicillata. Intraspecific difference between several strains of C. ulmi show that linoleic acid is the best inducer with an optimal concentration from 0.05 to 0.20 g/ml of methanol between the 10th and 25th day of culture. Linoleic and linolenic acid extend the capacity of sporulation of C. penicillata, conserving the strains capability of differentiation of Leptographium structures when ordinarily only the natural substrate can reinduce it. Ceratocystis dryocoetidis cultivated in the same conditions remains insensible to the lipid treatments.

The population of laying hens loses important genes: a case history

1997 ◽  
Vol 22 ◽  
pp. 71-78 ◽  
Author(s):  
P. Sørensen
Keyword(s):  
Laying Hens ◽  
Consumer Preferences ◽  
Genetic Material ◽  
Considerable Change ◽  
Egg Laying ◽  
Poultry Production ◽  
Production Potential ◽  
Strong Concentration ◽  
Free Range ◽  
Cage System

SummaryThe switch from keeping laying hens in a floor or free range system into a cage system led to a considerable change in the way that breeding and selection took place. In the past 40–50 years up to the present date, the increase in genetic improvement of the egg laying trait was substantial. However, cage-adapted populations of laying hens seem to have lost some of their abilities to an adequate performance when returned to the old floor\free range systems. The strong concentration of all parts of the poultry production has meant that less than 10 international breeding companies supply most hens for laying purposes in the world and they have very little interest in developing genetic material for the West-European region where there are marked consumer preferences for eggs produced in non-cage systems. A particular Danish line, of White Leghorn origin named “The Skalborg hen” seems to have survived during an era of cage production system and they seems to have a production potential at farm level.

Egg weight responses of laying hens fed different concentrations of vegetable oil and linoleic acid

1992 ◽  
Vol 43 (2) ◽  
pp. 389 ◽  
Author(s):  
PF Mannion ◽  
AR Neill ◽  
M Brewster
Keyword(s):  
Fatty Acids ◽  
Linoleic Acid ◽  
Olive Oil ◽  
Vegetable Oil ◽  
Laying Hens ◽  
Phase 1 ◽  
Egg Mass ◽  
Safflower Oil ◽  
Phase 2 ◽  
Egg Weight

The relationships between dietary fat content and dietary fatty acid composition and egg weight were investigated in two strains of laying hens. Six diets were fed in which the levels of readily absorbable fatty acids, including linoleic acid, were increased by the addition of up to 32.6 g kg-1 safflower oil. Two additional diets containing olive oil provided intermediate or high levels of readily absorbable fatty acids and a low level of linoleic acid. The diets were fed from 30 to 46 weeks of age (phase 1) and again from 54 to 70 weeks of age (phase 2) after an intermediate buffer period in which a diet low in both fat and linoleic acid was fed. The diets had no significant effect on feed intake, liveweight or egg mass output, although small differences in egg number occurred. Egg weight responded to increasing levels of safflower oil in the diet but not to similar levels of olive oil. These differences cannot be attributed to dietary energy or to the intake of nutrients other than those associated with the inclusion of vegetable oil. It is concluded that the linoleic acid component of safflower oil is responsible for the observed effects on egg weight. As judged by regression analyses the egg weight response was significant in only one strain, being linear in phase 1 and curvilinear in phase 2.

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