Dietary supplementation with fish oil and safflower oil, during the finishing period, alters brisket muscle fatty acid profile and n-6/n-3 ratio but not carcass traits of dairy beef bulls

The aim of the present study was to evaluate the effects of dietary supplementation with or without Bacillus subtilis (B. subtilis) on carcass traits, meat quality, amino acids, and fatty acids of broiler chickens. In total, 160 1-day-old Arbor Acres male broiler chicks were divided into two groups with eight replicates of 10 chicks each. Chickens received basal diets without (CN group) or with 500 mg/kg B. subtilis (BS group) for 42 days. Eight chickens from each group were slaughtered at the end of the trial, and carcass traits, meat quality, chemical composition, amino acid, and fatty acid profile of meat were measured. The results showed that the breast muscle (%) was higher in BS than in CN (p < 0.05), while abdominal fat decreased (p < 0.05). The pH24h of thigh muscle was increased (p < 0.05) when supplemented with BS; however, drip loss, cooking loss of breast muscle, and shear force of thigh muscle decreased (p < 0.05). Lysine (Lys), methionine (Met), glutamic acid (Glu), and total essential amino acid (EAA) in breast muscle and Glu in thigh muscle were greater in BS than in CN (p < 0.05). C16:1, C18:1n9c, and MUFA in breast muscle and thigh muscle were greater in BS than in CN (p < 0.05). In conclusion, dietary supplementation with B. subtilis could improve the carcass traits and meat quality of broilers, which is beneficial for the consumers due to the improved fatty acid profile and amino acid composition.

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238 Effects of algae DHA on parameters of nutrient digestibility, blood coagulation and serum fatty acid profile

Journal of Animal Science ◽

10.1093/jas/skz258.130 ◽

2019 ◽

Vol 97 (Supplement_3) ◽

pp. 62-63

Author(s):

Carrie James ◽

Fei He ◽

Heather Mangian ◽

Jolene Hoke ◽

Gary Davenport ◽

...

Keyword(s):

Fatty Acid ◽

Food Intake ◽

Fish Oil ◽

Blood Coagulation ◽

Fatty Acid Profile ◽

Dietary Supplementation ◽

Coagulation Factors ◽

Nutrient Digestibility ◽

Plasma Fatty Acid ◽

Adult Cats

Abstract Algae can be a sustainable alternative for dietary supplementation of omega-3 polyunsaturated fatty acids (w3-PUFAs; DHA and EPA), however there is limited information on the safety and bioavailability of w3-PUFAs from algal sources in feline diets. Thus, the objective of this study was to determine the effects of dietary supplementation of Algal-DHA on plasma fatty acid profile, blood coagulation, and apparent total tract nutrient digestibility (ATTD) in adult cats. Three diets were formulated to contain poultry fat or a 2% inclusion of fish oil or DHA-algal meal. Thirty female and male adult cats (mean age: 1.8 ± 0.03 yrs, mean BW: 4.5 ± 0.8 kg) were used in a complete randomized design and fed assigned diets for 90 days. Fasted blood samples were collected on days 0, 30, 60 and 90 and analyzed for serum chemistry, complete blood count, coagulation factors, and plasma fatty acid profile. At the end of the experimental period, a 4-d total fecal collection was performed for determination of ATTD of macronutrients and fecal score. There were no significant (P > 0.05) differences in food intake, fecal output and scores among dietary treatments. Similarly, ATTD of dry matter and organic did not differ (P > 0.05) among diets. Dietary supplementation of fish oil or algal-DHA did not affect (P > 0.05) plasma prothrombin time or partial thromboplastin time. All cats remained healthy throughout the study. Serum triglyceride concentrations were within reference range, but were significantly higher for DHA on days 30 and 90 vs. day 0. Results gathered herein indicate that feeding an algal-DHA enriched diet is safe and will not negatively impact nutrient digestibility, food intake, or coagulation factors in adult cats.

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