Effects of Feeding Flax and Two Types of Sunflower Seeds on Fatty Acid Compositions of Yolk Lipid Classes

Jiang, Zhong‐Xing; Ahn, Dong U.; Sim, J. S.

doi:10.3382/ps.0702467

Cited by 124 publications

(86 citation statements)

References 19 publications

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“…This result is consistent with other reports for broiler chicks (Phetteplace & Watkins, 1989;Olomu & Baracos, 1991a). Studies using whole flaxseed for poultry diets have shown that whole eggs and various tissues are enriched with n-3 PUFAs derived from dietary α-linolenic acid (C18:3n-3) (Caston & Leeson, 1990;Cherian & Sim, 1991;Jiang et al, 1991). Docosahexaenoic acid (DHA) (C22:6n-3) can be retroconverted to eicosapentanoic acid (EPA) (C20:5n-3) which is normally present only in trace amounts in the tissue lipids.…”

Section: Discussionsupporting

confidence: 82%

Effects of various dietary n-3 / n-6 fatty acid ratios on the performance and body composition of broilers

Coetzee¹,

Hoffman²

2002

SA J. An. Sci.

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Different combinations of saturated and unsaturated fatty acids were fed to broilers to establish their effect on the fatty acid composition of the broiler carcass and the abdominal fat pad. Six combinations of Canola acid oil (CAO, high levels of C18:3n-3 and monounsaturated fatty acids) and Famarol acid oil (FAO, high levels of C18:2n-6 and saturated fatty acids) were included in the broiler diets from one day of age to six weeks of age, viz. 100% FAO, 80% FAO-20% CAO, 60% FAO-40% CAO, 40% FAO-60% CAO, 20% FAO-80% CAO, 100% CAO. There were no statistically significant differences between dietary groups in weight gain (1.71 ± 0.059 kg) or feed conversion ratios (1.97 ± 0.051 g feed/g gain). No significant differences between treatments were found in the moisture (66.20 ± 0.112%), protein (17.63 ± 0.484%), lipid (15.92 ± 1.507%) and ash (0.95 ± 0.115%) concentration of the carcasses, nor in the moisture (28.77 ± 0.112%), protein (3.03 ± 0.484%), lipid (63.32 ± 9.789%) and ash (0.45 ± 0.135%) concentrations of the abdominal fat pads. With the increase in dietary CAO levels, the mean percentages of C18:2n-6 and C20:4n-6 in the carcasses decreased respectively with 1.78% units from 20.88% and 0.35% units from 1.05%, whilst C18:3n-3 and longer chain n-3 fatty acids such as C20:5n-3 and C22:6n-3 increased respectively with 2.25% units from 1%, 0.1% units from 0.1% and 0.67% units from 0.2%. The same tendency was seen in the abdominal fat pads where C18:2n-6 and C20:4n-6 decreased respectively with 1.55% units from 20.75% and 0.98% units from 1.2% with an increase in dietary CAO, whilst C18:3n-3, C20:5n-3 and C22:6n-3 increased respectively with 2.13% units from 1.15%, 0.45% units from 0.03% and 0.95% units from 0.05%. The n-3/n-6 ratio in the carcasses and abdominal fat pads increased respectively with 0.16% units from 0.06% and 0.19% units from 0.06% with an increase in dietary CAO. These results clearly indicate that dietary CAO enriched with α-linolenic acid lowered the saturated fatty acid concentrations in broiler carcasses and abdominal fat pads with 4.88% units and 10.63% units respectively, and increased the monounsaturated fatty acid concentrations with 3.87% units and 7.25% units, respectively and polyunsaturated fatty acid concentrations with 1.02% units and 2.38% units, respectively. The results of this experiment showed that substitution of Famarol oil with Canola oil in broiler diets can increase the ratio of n-6 to n-3 fatty acids in broiler carcasses and abdominal fat pads to 5:1, a ratio more suitable for human health. Increasing the level of n-3 fatty acids in the diets was also effective in reducing the level of saturated fatty acids in the carcasses and abdominal fat pads of broiler chickens resulting in "healthier" chickens.

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Section: Discussionsupporting

confidence: 82%

Effects of various dietary n-3 / n-6 fatty acid ratios on the performance and body composition of broilers

Coetzee¹,

Hoffman²

2002

SA J. An. Sci.

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“…Os efeitos da linhaça sobre a produção de ovos de poedeiras alimentadas por quatro semanas, foram avaliados por Jiang et al (1991a) que não encontraram efeitos da linhaça sobre a produção de ovos ou sobre o peso dos ovos durante o experimento. No entanto, Scheideler & Froning (1996) relataram aumento na taxa de postura de poedeiras alimentadas com rações contendo óleo de linhaça.…”

Section: Resultsunclassified

Avaliação de óleos, carvão vegetal e vitamina E no desempenho e nas concentrações lipídicas do sangue e dos ovos de poedeiras

Fanchiotti¹,

Moraes²,

Barbosa³

et al. 2010

R. Bras. Zootec.

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RESUMO -Foram estudados os efeitos de duas fontes de óleo vegetal, de carvão e de vitamina E sobre o desempenho e os níveis lipídicos do sangue e dos ovos de poedeiras comerciais. Utilizaram-se poedeiras Lohmann Brown e Lohmann LSL com 58 semanas de idade. O experimento teve duração de 84 dias, divididos em três períodos de 28 dias, e foi realizado em delineamento inteiramente casualizado em esquema de parcelas subdivididas, tendo nas parcelas um esquema fatorial 8 × 2, com oito dietas e duas marcas comerciais, e nas subparcelas os períodos. Para avaliação das características produtivas, colesterol total, triglicérides e HDL sanguíneos, utilizaram-se quatro repetições de seis aves por unidade experimental e, para determinação do colesterol total das gemas, duas repetições. As dietas foram acrescidas de 2,0% de óleo de soja ou de linhaça em combinação ou não com vitamina E (60 mg/kg de ração) e/ou carvão (2,0%). Os resultados não evidenciaram diferenças entre as dietas experimentais sobre as variáveis de desempenho. Consumo de ração, espessura da casca, colesterol total e triglicerídios no sangue foram influenciados pelas marcas comerciais e peso médio dos ovos, espessura da casca, colesterol total e triglicerídios no sangue, pelos períodos experimentais. O uso de óleos vegetais, carvão e vitamina E nas dietas experimentais não influencia as características de desempenho nem o perfil lipídico do sangue e de colesterol total da gema dos ovos. Aves Lohmann LSL apresentam maiores consumos de ração e níveis mais altos de colesterol e triglicérides no sangue.Palavras-chave: características produtivas, gema, lipídios sanguíneos Evaluation of oil, vegetal charcoal and E vitamin on performance and on blood and egg lipid concentrations of laying hens ABSTRACT -This experiment was carried out to evaluate the effects of two vegetal oils sources, charcoal and vitamin E on performance and lipid levels in blood and eggs of commercial laying hens. It was used Lohman Brown and Lohman LSL laying hens at 58 weeks of age. The experiment lasted 84 days split in three 28-day periods and it was carried out in a complete random design in a split-plot scheme, in a 8 × 2 factorial scheme in the plots with eight diets an two commercial brands, and the periods in the subplots. For evaluation of productive characteristics, total cholesterol, blood tryclecydes and HDL, it was used four repetitions of six birds per experimental unit and, for determination of total yolk cholesterol, two repetitions were used. Diets were added with 2% soybean oil or linseed oil combined or not with E vitamin (60 mg/kg ration) and/or charcoal (2%). No diet effects on the performance variables were observed. Commercial strain effects on feed intake, shell thickness, total cholesterol and blood triglycerides and experimental period effects on egg weight, shells thickness, total cholesterol and blood triglycerides were observed. Use of vegetal oil, charcoal and vitamin E in experimental diets do not affect characteristics of performance neither blood lipid and egg ...

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“…The results of the present trial are in agreement with those of Aymond & Van Elswyk (2005), who reported a decrease in egg production when layers were fed 15% linseed. On the other hand, Jiang et al (1991), Caston et al (1994), and Bean & Leeson (2003) showed that feeding up to 10% linseed to the hens did not effect egg production. Scheideler & Froning (1996) reported a decrease in feed intake when hens were fed linseed, as found in the present study.…”

Section: Discussionmentioning

confidence: 99%

Effect of feeding whole linseed as a source of polyunsaturated fatty acids on performance and egg characteristics of laying hens kept at high ambient temperature

Ahmad

Ahsan-ul-Haq

Yousaf

et al. 2013

Rev. Bras. Cienc. Avic.

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The present study was conducted to evaluate the effects of feeding whole linseed on the laying performance and egg characteristics in laying hens kept at high ambient environmental temperatures (average 34 ºC; the diurnal temperature range 26 ºC to 41 ºC). Two hundred and forty 38-wk-old white Leghorn laying hens were fed diets containing 0, 5, 10 or 15% whole linseed (as a source of n-3 polyunsaturated fatty acids) for a period of 12 weeks. Egg production was recorded daily, while feed intake and egg characteristics were monitored on weekly basis. The results of the study demonstrated that egg production and feed intake decreased, while feed conversion ratio (FCR) per dozen of eggs increased (p ≤ 0.05) with increasing dietary linseed levels. Egg weight, yolk weight, albumen height, eggshell weight, and eggshell thickness were not influenced (p > 0.05) by linseed levels in the diets offered to the laying hens. The results of the present trial suggest that feeding linseed to the laying hens in hot climates has no detrimental effects on egg characteristics, but has suppressive effects on egg production, feed intake and feed efficiency of laying hens.

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Effects of Feeding Flax and Two Types of Sunflower Seeds on Fatty Acid Compositions of Yolk Lipid Classes

Cited by 124 publications

References 19 publications

Effects of various dietary n-3 / n-6 fatty acid ratios on the performance and body composition of broilers

Effects of various dietary n-3 / n-6 fatty acid ratios on the performance and body composition of broilers

Avaliação de óleos, carvão vegetal e vitamina E no desempenho e nas concentrações lipídicas do sangue e dos ovos de poedeiras

Effect of feeding whole linseed as a source of polyunsaturated fatty acids on performance and egg characteristics of laying hens kept at high ambient temperature

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