production of egg enriched with omega-3 fatty acids in laying hens
نویسندگان
چکیده
abstract introduction: this experiment was conducted to study the effects of different levels of flaxseed (0, 5, 10 and 15% of diet) and copper (in the form of cupric sulfate pentahydrate, 0 and 250 ppm of diet) on fatty acids and cholesterol in egg yolk of laying hens. methods: a total of 128 white leghorn layers aged 50 weeks were used in a factorial design and randomly assigned to 8 treatment groups. the experiment lasted 120 days. the birds were fed ad libitum on the experimental diets. cholesterol concentration and fatty acids in plasma and egg yolk were measured monthly and bimonthly, respectively. egg yolk cholesterol was extracted using modified folch procedure and measured using zak's method. results: the results showed that experimental diets had no effect on plasma cholesterol. the different levels of flax had no significant effect on egg yolk cholesterol but the presence of copper with flax at levels of 5 and 10 percent decreased cholesterol in egg yolk (mg per gram yolk) significantly (p<0.05). the egg cholesterol (mg per egg) in the group treated with 15% flax without copper also decreased significantly (p<0.05). the unsaturated fatty acids of egg yolk increased significantly in all experimental diets (p<0.05). the highest ratio of omega-3 to omega-6 fatty acids was observed in groups treated with 10% and 15% flax diets. discussion: this experiment showed that feeding flaxseed to laying hens can increase omega-3 fatty acids of egg yolk. keywords • laying hen • egg yolk • flax • copper • plasma • cholesterol • fatty acid
منابع مشابه
Response of laying hens to supplementation with various fatty acids when fed diets inadequate in protein and sulphur amino acids
متن کامل
Modification of egg yolk fatty acids profile by using different oil sources
The study was conducted to evaluate the effects of different dietary oil sources supplementation on laying hens’ performance and fatty acids profile of egg yolks. Seventy-two 23-week-old laying hens (Tetra-SL) divided into six experimental diets (four replicates and three birds per replication) in a completely randomized design for nine weeks. Experimental diets were included: 1) control (no oi...
متن کاملEffect of Short and Long-Term Treatment with Omega-3 Fatty Acids on Scopolamine-Induced Amnesia
Two omega-3 fatty acids including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are essential for the physiologic function of neuronal cell membrane. Normal function of neuronal cell membrane requires appropriate composition of fatty in its structure. Present study was designed to compare the effect of short-term and long-term pretreatment with omega-3 fatty acids on scopolamine...
متن کاملEvaluation of the Relationship between Endometriosis and Omega-3 and Omega-6 Polyunsaturated Fatty Acids
Background: Endometriosis is a common chronic inflammation causing major problems including infertility. The role of omega-3 and omega-6 fatty acids as their potential anti-inflammatory effects in endometriosis needs to be further explored. The objective of this study was to compare serum phospholipid fatty acid profile in endometriosis patients with controls, and to explore the correlation of ...
متن کامل[Omega-3 fatty acids in psychiatry].
The brain is one of the organs with the highest level of lipids (fats). Brain lipids, formed of fatty acids, participate in the structure of membranes, for instance 50 % fatty acids are polyunsaturated in the gray matter, 1/3 are of the omega-3 family, and are thus of dietary origin. The omega-3 fatty acids (mainly alpha-linolenic acid, ALA) participated in one of the first experimental demonst...
متن کاملEffect of Short and Long-Term Treatment with Omega-3 Fatty Acids on Scopolamine-Induced Amnesia
Two omega-3 fatty acids including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are essential for the physiologic function of neuronal cell membrane. Normal function of neuronal cell membrane requires appropriate composition of fatty in its structure. Present study was designed to compare the effect of short-term and long-term pretreatment with omega-3 fatty acids on scopolamine...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
arya atherosclerosisجلد ۱، شماره ۴، صفحات ۰-۰
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023