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3. Effect of Different Dietary n-6 to n-3 Fatty Acid Ratios on the Performance and Fatty Acid Composition in Muscles of Broiler Chickens

Author

G. P. Mandal, T. K. Ghosh, and A. K. Patra

Subjects
Chicken, n-6 to n-3 Fatty Acid Ratio, Performance, Meat, Animal culture, SF1-1100, Animal biochemistry, QP501-801
Abstract

The objective of this study was to investigate the different dietary ratios of n-6 to n-3 (n-6/n-3) fatty acid (FA) on performance and n-6/n-3 FA in muscles of broiler chickens. A total of 300 one-day-old Cobb chicks were randomly assigned to 3 treatments of 10 replicates in each (10 birds/replicate). Birds were fed on a corn-soybean meal-based diet containing 1% oil during starter (day 1 to 21) and 2% oil during finisher (day 22 to 39) phases, respectively. Treatments of high, medium and low dietary n-6/n-3 FA were formulated by replacing rice bran oil with linseed oil to achieve n-6/n-3 FA close to >20:1, 10:1 and 5:1, respectively. Average daily gain, average daily feed intake, and feed conversion ratio were similar (p>0.05) among the treatments. Serum glucose, cholesterol and triglycerides concentrations were not affected (p>0.05) by dietary treatments. In breast, concentration of C18:3n-3 was significantly greater (p = 0.001) for medium and low vs high n-6/n-3 FA, while concentrations of C20:5n-3, C22:6n-3, total n-3 FA, and n-6/n-3 FA were significantly higher for low vs medium, and medium vs high dietary n-6/n-3 FA. In contrast, concentrations of C18:2 and mono-unsaturated FA (MUFA) were lower for low vs high dietary n-6/n-3 FA. In thigh muscles, concentrations of C20:5n-3 were higher (p

Published
2014
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4. Three new species of Collembola from India

Author

G. P. Mandal

Subjects
biology, Ecology, Bourletiella, Identification key, General Medicine, biology.organism_classification, Entomobryidae, Calx, Isotomidae, %22">Collembola
Abstract

Three new species of Collembola belonging to genera: Calx , Folsomia and Bourletiella under three families have been described from the states of Jharkhand, Arunachal Pradesh and Meghalaya, India. An identification key to the Indian species and their distribution are also provided.

Published
2018
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13. Effect of feeding different level of Moringa oleifera leaf meal on growth performance, lipid profile and meat fatty acid composition of Vanaraja chicken in tropics

Author

ABHISHEK KUMAR, KAUSHALENDRA KUMAR, SANJAY KUMAR, null CHANDRAMONI, R R K SINHA, J K PASWAN, and G P MANDAL

Subjects
General Veterinary, Animal Science and Zoology
Abstract

Present study was designed to investigate the dietary inclusion of Moringa oleifera leaf meal (MOLM) on growth performance, lipid profile and meat fatty acid composition of Vanaraja birds under tropical condition. The experiment was conducted for 56 days on 300 Vanaraja birds divided into 5 different treatment groups of 60 birds each. T1 served as control group and fed only with basal ration whereas, other treatment groups such as T2, T3, T4 and T5 were supplemented with 5, 10, 15 and 20% Moringa oleifera leaf meal along with basal ration. Growth performance and feed conversion efficiency in Vanaraja chicken showed significant effect and good fluctuation was observed among the different treatment groups. The total cholesterol and triglyceride level decreased significantly as compared to control group. The fatty acid composition in chicken was significantly improved. However, the maximum profit per kg live weight was noted in T2 group and least profit observed in 20% MOLM fed group. It was concluded that the overall performances improved significantly with 5% followed by 10% Moringa oleifera leaf meal supplemented birds with achieving maximum profit and healthy meat production for human consumption.

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