Impact of varying housing systems on egg quality characteristics, fatty acid profile, and cholesterol content of Rhode Island Red × Fyoumi laying hens

Islam, Ziaul; Sultan, Asad; Khan, Sarzamin; Alhidary, Ibrahim A.; Abdelrahman, Mutassim M.; Khan, Rifat Ullah

doi:10.1007/s11250-021-02913-x

Cited by 12 publications

(4 citation statements)

References 19 publications

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“…Thus, the n -6: n -3 ratios were significantly different among the egg groups, with a 51:1 ratio observed in CFC eggs compared to 6:1 and 11:1 in PBB and PCS eggs, respectively, from hens with unlimited access to fresh pasture ( p < 0.001) ( Table 5 ). This is congruent with previous studies showing that pasture access increases n -3 PUFA concentration and decreases the n -6: n -3 ratio of hen egg yolks [ 1 , 10 , 40 , 46 ]. Consuming diets with a lower n -6: n -3 ratio, around 4:1, is associated with a decreased risk of many chronic diseases including obesity and cardiovascular disease [ 47 ].…”

Section: Resultssupporting

confidence: 93%

“…There was no difference in percent SFA among the egg groups, but there were significant differences in percent MUFA and PUFA. In general, the proportions of SFA, MUFA, and PUFA were consistent with other studies comparing egg yolks from hens fed conventional and pasture-containing diets, except for the low percent PUFA in PBB egg yolks [ 7 , 40 ]. An additional table displaying absolute quantification of the fatty acid profile in the egg yolks in grams of fatty acids per 100 g of fresh yolk is available in Table S2 .…”

Section: Resultssupporting

confidence: 89%

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Fatty Acid and Antioxidant Profile of Eggs from Pasture-Raised Hens Fed a Corn- and Soy-Free Diet and Supplemented with Grass-Fed Beef Suet and Liver

Sergin

Jambunathan

Garg

et al. 2022

Foods

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There is increasing interest in using grass-fed beef (GFB) by-products to augment the nutrient profile of eggs among local pasture-raising systems in the US. The objective of this study was to characterize egg yolk fatty acid and antioxidant profiles using eggs from pasture-raised hens fed a corn- and soy-free diet and supplemented with GFB suet and liver compared to eggs from pasture-raised hens fed a corn and soy layer hen feed and commercially obtained cage-free eggs. The egg yolk vitamin and mineral profile was also assessed by a commercial laboratory. Both pasture-raised groups had twice as much carotenoid content, three times as much omega-3 fatty acid content, and a 5–10 times lower omega-6:omega-3 fatty acid ratio compared to the cage-free eggs (p < 0.001). Eggs from hens fed a corn- and soy-free feed and GFB by-products had half as much omega-6 fatty acid content and five times more conjugated linoleic acid, three times more odd-chain fatty acid, and 6–70 times more branched-chain fatty acid content (p < 0.001). Feeding pasture-raised hens GFB suet and liver reduces agricultural waste while producing improved egg products for consumers, but further research is needed to quantify optimal supplementation levels and the efficacy of corn- and soy-free diets.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 89%

Fatty Acid and Antioxidant Profile of Eggs from Pasture-Raised Hens Fed a Corn- and Soy-Free Diet and Supplemented with Grass-Fed Beef Suet and Liver

Sergin

Jambunathan

Garg

et al. 2022

Foods

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“…Cooking methods are also different, with higher temperatures and longer cooking time leading to oxidative damage to vitamins [60]. Furthermore, while nutrition databases have an average for the cholesterol content of eggs, this commonly differs by country and can be influenced by multiple factors including feed composition [61][62][63], housing systems (free range vs. caged) [64], and age of the laying hens [65]. These factors may contribute to the observed country differences.…”

Section: Discussionmentioning

confidence: 99%

Eggs and Cardiovascular Disease Risk: An Update of Recent Evidence

Carter

Connole

Hill

et al. 2023

Curr Atheroscler Rep

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Purpose of Review This review summarizes recent evidence published since a previous review in 2018 on the association between egg consumption and risk of cardiovascular disease (CVD) mortality, CVD incidence, and CVD risk factors. Recent Findings No recent randomized controlled trials were identified. Evidence from observational studies is mixed, with studies reporting either an increased risk or no association of highest egg consumption with CVD mortality, and a similar spread of increased risk, decreased risk, or no association between egg intake and total CVD incidence. Most studies reported a reduced risk or no association between egg consumption and CVD risk factors. Included studies reported low and high egg intake as between 0 and 1.9 eggs/week and 2 and ≥14 eggs/week, respectively. Ethnicity may influence the risk of CVD with egg consumption, likely due to differences in how eggs are consumed in the diet rather than eggs themselves. Summary Recent findings are inconsistent regarding the possible relationship between egg consumption and CVD mortality and morbidity. Dietary guidance should focus on improving the overall quality of the diet to promote cardiovascular health.

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“…First, the albumen and yolk were removed, and then in an incubator, the eggshell was dried off for a night, and then the digital balance was used to determine the egg shall weight. Egg yolk weight was determined using (Islam et al, 2021) method. The height of albumen was recorded by using a transparent plastic rod and compared with a ruler.…”

Section: Egg Quality Traitsmentioning

confidence: 99%

Effect of Dietary Inclusion of Soybean Hulls in the Diet on Feed Proximate Analysis, Egg Quality Parameters and Economics during Peak Egg Production Stages in Laying Hens

Shuaib¹,

Hafeez²,

Islam³

et al. 2023

PJZ

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The study was designed to determine the effect of varying levels of soybean hulls inclusion in the diet of brown layer on, feed proximate analysis, egg quality, and economies during peak egg production period with different phases (phase-1=week 29 to 32, phase-2=week 33 to 36, and phase-3=week 37 to 40). One hundred and sixty golden misri (Brown) laying hens of age 28 weeks were sourced and reared for 40 weeks. There were 4 groups with 4 replicates per group containing 10 birds each. Corn-soybean meal diet (Basal Diet) was offered to the control group (A), while groups B, C, and D were fed the basal diet with 3, 6, and 9 % soybean hulls (SH) respectively. Results showed higher(P<0.05)crude fiber, ash, cellulose, and hemicellulose content for diets containing soybean hull (SH) at 3, 6, and 9% compared to the basal diet. Egg weight and egg quality parameters during different phases were not affected among the treatment groups. Total revenue and profit during all phases (phases 1, 2, and 3) while cost-benefit ratio during phase-1 and 2 were recorded significantly higher for the control group than all other treatment groups.It is concluded that the effect of different levels of soy hulls in diet did not affect egg weight and egg quality parameters during different phases but economic parameters were significantly higher (P<0.05) amount in the control group than all soybean hull treatment groups. Among soybean hulls groups, 3% and 6% SH group showed better results than 9%SH group.

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Impact of varying housing systems on egg quality characteristics, fatty acid profile, and cholesterol content of Rhode Island Red × Fyoumi laying hens

Cited by 12 publications

References 19 publications

Fatty Acid and Antioxidant Profile of Eggs from Pasture-Raised Hens Fed a Corn- and Soy-Free Diet and Supplemented with Grass-Fed Beef Suet and Liver

Fatty Acid and Antioxidant Profile of Eggs from Pasture-Raised Hens Fed a Corn- and Soy-Free Diet and Supplemented with Grass-Fed Beef Suet and Liver

Eggs and Cardiovascular Disease Risk: An Update of Recent Evidence

Effect of Dietary Inclusion of Soybean Hulls in the Diet on Feed Proximate Analysis, Egg Quality Parameters and Economics during Peak Egg Production Stages in Laying Hens

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