Two experiments were conducted to determine the effect of source of fatty acids (FA) fed as tallow or calcium salts of fish and palm oils (CaSFO) on performance of dairy cows. In experiment 1, 738 multiparous Holstein cows were fed a diet with either 18 g/kg of tallow or 19 g/kg of CaSFO to supply equal amounts of FA in two replicates per treatment. In experiment 2, 331 multiparous cows were fe...

Two trials that utilized 356 yearling steers were conducted to evaluate the effects of fat sources (3.5% of diet dry matter) in steam-flaked milo finishing diets. Fats differed in fatty acid composition and level of free fatty acids. In Trial 1, soybean oil, tallow and yellow grease were compared to a nonfat control. Feeding fat increased (P less than .05) daily gain, feed efficiency, estimated...

The physicochemical properties of oil and fat have considerable influence on their performances for various areas application. These properties, such as specific gravity, density, moisture content, free fatty acid, peroxide value, iodine acid saponification value etc., are important parameters assessing the quality could aid in identifying suitability be affected by different processing conditi...

Fatty acids are chains of carbons that end in an acid group, or carboxyl group as it is referred to in biochemistry. Fatty acids vary in the length of the fatty acid chain and the number of double bonds. It is common to abbreviate fatty acids by listing the number of carbons in the chain:number of double bonds (Table 1). An example of a common fatty acid is stearic acid with 18 carbons and no d...

Tallow mainly consists of triglycerides, whose major constituents are derived from stearic, palmitic and oleic acids, its usage reduces production cost soap, adds lather stability hardness to soap. Laundry soaps were produced with variation on amount tallow (sourced cow, sheep goat) labelled as A, B, C, D E formulations. The respective tallows characterized in terms saponification value acid de...

A total of 600 1-d-old Hybro N broiler chicks were randomly distributed into 24 litter pens and fed from 21 to 52 d of age isocaloric and isonitrogenous diets containing 8% of three different fat sources (tallow, lard or sunflower oil). Dietary treatment produced a significant effect (P < 0.05) in fatty acid composition of the intramuscular neutral lipids among all dietary treatments and for al...

Transesterification of beef tallow and methanol is affected by many factors. Catalyst, free fatty acids, and water in beef tallow, and reaction time were investigated. Sodium hydroxide (NUOH) was a more effective catalyst than sodium methoxide (NaMeOj. NaOH and NaMeO reached their maximum activities at 0.3% and 0.5%, w/w of beef tallow, respectively. The presence of water had more negative effe...

In the current study the plasma metabolites of silvery-black porgy (Sparidentex hasta) juveniles fed with different lipids sources were analyzed in order to bio-monitoring fish health condition. In this regard, an eight-week feeding trial was conducted using seven isonitrogenous (50%) and isolipidic (20%) experimental diets : FO, CO (canola oil), SO (sunflower oil), T (tallow), FC (fish oil + c...

Due to its high lipid content and intricate constitution, food waste poses a considerable challenge for biotreatment. This research aims investigate the potential influence of diverse species on anaerobic fermentation, induced by varying dietary patterns observed in distinct regions. The investigation involved incorporating 5% (w/w) beef tallow, mutton fat, soybean oil, peanut rapeseed separate...

Prostaglandins and related compounds are active mediators of inflammation, but data concerning their role in the pathogenesis of the glomerulonephritis of New Zealand Black x New Zealand White (NZB x NZW) F1 mice are conflicting. Dietary eicosapentaenoic acid (EPA, C20:5), a fatty acid analogue of arachidonic acid (C20:4), has been shown to impair platelet aggregation in humans, apparently thro...