scholarly journals Influence of four dietary oils on selected blood constituents in egg-type chickens

2017 ◽  
Vol 62 (3) ◽  
pp. 251-263
Author(s):  
Adebisi Agboola ◽  
Babatunde Omidiwura ◽  
Jeremiah Olurinola

The enrichment of eggs with polyunsaturated fatty acids (PUFA), particularly with omega-3 fatty acids, has attracted the attention of both researchers and the food industry, because these fatty acids are essential for normal body development and play an important role in the prevention of heart diseases. This experiment was conducted to evaluate the effect of four dietary oils on selected blood metabolites in egg-type chickens. One hundred and five (105) Isa Brown laying hens at 34 weeks of age were used and the study lasted for 6 weeks in a completely randomised design. Hens were randomly allotted to seven dietary treatments namely: basal diet (T1), basal diet + 1.5% palm oil (T2), basal diet + 1.5% soybean oil (T3), basal diet + 1.5% sesame seed oil (T4), basal diet + 1.5% fish oil (T5), basal diet + 0.75% soybean oil + 0.75% fish oil (T6) and basal diet + 0.75% sesame seed oil + 0.75% fish oil (T7). The treatments had 5 replicates of 3 hens each. Blood samples (5mls) were collected from the jugular vein of a bird per replicate for serum and haematological parameters. There were no significant differences observed in packed cell volume, haemoglobin, red blood cell, white blood cell, lymphocyte, heterophils and basophils of birds on experimental diets but diets had an influence (P<0.05) on the monocytes, eosinophils and platelets of birds. Monocytes of birds on the control diet were similar to those of birds on T3 (basal diet + 1.5% soyabean oil) but significantly (P<0.05) higher than monocyte counts for birds on other diets. Eosinophils of birds on the experimental diets were similar except for those on T4 (basal diet + 1.5% sesame seed oil) with significantly higher eosinophil values compared with others. A similar trend was observed in platelets of birds on the experimental diets. There were no significant differences observed in triglycerides, high density lipoproteins and cholesterol of birds on experimental diets. Low density lipoprotein (LDL) of birds on the control diet was similar to those recorded for birds on different dietary oils supplemented diets except for those on T6 (basal diet + 0.75% soybean oil + 0.75% fish oil) with significantly (P<0.05) reduced LDL. It can be concluded that dietary oils combination of 0.75% soybean oil + 0.75% fish oil could be effective in reducing serum low density lipoprotein in laying birds.

2021 ◽  
Vol 13 (3) ◽  
pp. 820-829
Author(s):  
Meenakshi Garg ◽  
Surabhi Wason ◽  
Prem Lata Meena ◽  
Rajni Chopra ◽  
Susmita Dey Sadhu ◽  
...  

Most common cooking oil, such as soybean oil, can not be used for high-temperature applications, as they are highly susceptible to oxidation. Sesame seed oil rich in natural antioxidants provides high oxidative stability. Therefore, blending sesame oil with soybean oil offer improved oxidative stability. This study aims to determine the effect of frying on the physicochemical properties of sesame and soyabean oil blend. Soybean oil (SO) was blended with sesame seed oil (SSO) in the ratio of A-40:60, B-60:40 and C-50:50 so as to enhance its market acceptability. The changes occurring in soybean and sesame seed oil blend during repeated frying cycles were monitored. The parameters assessed were: Refractive index, specific gravity, viscosity, saponification value, free fatty acid (FFA) , peroxide value, and acid value. Fresh and fried oil blends were also characterised by Fourier Transform Infrared Spectroscopy (FTIR). No significant changes were observed for refractive index and specific gravity values in oil blends. Viscosity of blend B blend was the least, making it desirable for cooking purposes. However, FFA, acid value and peroxide value increased after each frying cycle. The increment of FFA and AV was found low for blend A (10% and 10%,) than blend B (27%,13%) and blend C (13%,13%). The peroxide value of all samples was within the acceptable range. The results of the present study definitely indicated that blending sesame oil with soybean oil could produce an oil blend which is economically feasible and provide desirable physicochemical properties for cooking purposes.


2013 ◽  
Vol 80 (2) ◽  
pp. 205-213 ◽  
Author(s):  
Eleni Tsiplakou ◽  
George Zervas

An effective strategy for enhancing the bioactive fatty acids (FA) in sheep milk could be dietary supplementation with a moderate level of a combination of soybean oil with fish oil (SFO) without negative effects on milk yield and its chemical composition. Thus, the objective of this study was to determine the effects of a moderate forage diet supplementation with SFO on milk chemical composition and FA profile, as well as on plasma FA. Twelve dairy sheep were assigned to two homogenous sub-groups. Treatments involved a control diet without added oil, and a diet supplemented with 23·6 g soybean oil and 4·7 g fish oil per kg dry matter (DM) of the total ration. The results showed that SFO diet had no effect on milk yield and chemical composition. In blood plasma the concentrations oftrans-11C18:2(VA), C18:2n-6, C20:5n-3(EPA) and C22:6n-3(DHA) were significantly higher while those of C14:0, C16:0and C18:0were lower in sheep fed with SFO diet compared with control. The SFO supplementation of sheep diet increased the concentrations of VA,cis-9, trans-11C18:2CLA,trans-10, cis-12, C18:2CLA, EPA, DHA, monounsaturated FA (MUFA), polyusaturated fatty acids (PUFA) andn-3 FA and decreased those of short chain FA (SCFA), medium chain FA (MCFA), the saturated/unsaturated ratio and the atherogenicity index value in milk compared with the control. In conclussion, the SFO supplementation at the above levels in a sheep diet, with moderate forage to concentrate ratio, improved the milk FA profile from human health standpoint without negative effects on its chemical composition.


1976 ◽  
Vol 43 (2) ◽  
pp. 213-218 ◽  
Author(s):  
W. Banks ◽  
J. L. Clapperton ◽  
Morag E. Ferrie ◽  
Agnes G. Wilson

SummaryThe effects of supplementing a basal diet, in which the low level of fatty acids limited milk production, with soya oil, a palm oil/palmitic acid mixture and tallow, on the yield of milk and of its constituents, and on the composition of the milk, are reported. The yields of milk and milk fat were greatly increased by all the oil-supplemented diets; the mean daily yield of solids-not-fat (SNF) was also increased, but supplementation with soya oil caused the yield of crude protein (CP) to decrease, whereas the other fat-rich concentrate mixtures gave the same mean yield of protein as did the low-fat, control diet. All 3 oil-supplemented diets lowered the proportion of CP in the milk, but the SNF content was unchanged by any treatment. Dietary soya oil tended to lower the proportion of fat in the milk, whilst the palm oil/palmitic acid mixture raised it, with the tallow exerting no effect. The results are discussed in relation to previous work in which these dietary oils have been used, but in which the intake of fatty acids from the control diets did not limit milk production to the extent reported here.


2019 ◽  
Vol 65 (5) ◽  
pp. 64
Author(s):  
Esmaeil Ganjineh ◽  
Farzad Babaii ◽  
Afshin Mozafari ◽  
Mohammad Mirzaei Heydari ◽  
Rahim Naseri

2010 ◽  
Vol 2 (4) ◽  
Author(s):  
S.M. Abdulkarim ◽  
M.W. Myat ◽  
H.M Ghazali ◽  
K. Roselina ◽  
K.A Abbas

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