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Open Access Original Research Article

Performance and Essential Fatty Acids Content of Dark Meat as Affected by Supplementing the Broiler Diet with Different Levels of Flaxseeds

Huthail Najib, Yousef M. Al-Yousef

Annual Research & Review in Biology, Page 22-32

In recent years attention was focused on the relationship between, increased human consumption of Omega 3 fatty acids such as, C20:5 (EPA), C22:6 (DHA) & C22:5 (DPA) and lowered incidence of human coronary heart disease. These fatty acids are mainly present in fish products which could result in fishy flavor in eggs of birds, fed such ingredients. Flaxseeds were found to be a good source for linolenic acid, an important poly-unsaturated fatty acid which is a precursor for the omega 3 fatty acids. This experiment was conducted to study the effect of feeding different levels of flaxseeds on performance and essential fatty acids content of broiler dark meat. Five levels of roasted or unroasted flaxseeds: 0, 5, 10, 15 and 20% dry weight were fed to 400 broiler chickens in 4 replicates (10 birds/battery pen). Feed was given ad-libitum. Results of this experiment showed a relatively higher consumption of feed, lower body weight, higher feed conversion when flax seed level in the diet was increased beyond 5%. However, feeding 15 % flaxseed increased the omega3 fatty acid (linolenic acid, DHA, EPA and DPA) sharply in the fat of dark meat (thigh) which make this meat healthier to human. It is suggested that roasting can improve the quality of flax seeds and these seeds can be incorporated in the broiler diet if the producer is willing to sacrifice some performance. In turn he will get a premium price for his products.

Open Access Original Research Article

Studies on the Effect of Lugol’s Iodine on Reproductive Efficiency of Dairy Cattle

Prabhat Pandey, Akhilesh Pandey, A. K. Sinha, B. Singh

Annual Research & Review in Biology, Page 33-36

The present investigation was conducted to study the effect of intra uterine infusion of 20 ml Lugol’s iodine (0.25 %) on day 5 (Group I; n= 18), day 17 (Group II n= 17) on reproductive performance as compared to untreated animals (Group III; n= 18). The average inter estrus interval in the animals in treatment group I (14.12 ± 0.396 days) was significantly (P<0.01) shorter than group II (23.93 ± 0.330 days) and control group III (20.93 ± 0.870 days). The average duration (days) for first postpartum fertile estrus was shortest (88.93 ± 10.053 days) in group I, followed by group II (106.46 ± 8.743 days) and control group III (113.72 ± 7.131 days). The number of artificial insemination (A.I.) required per conception was observed to be only 1.38 in group I while the values were 1.50 and 1.91 for group II and III, respectively.