Effects of calcium salts of fatty acids rich in palmitic and oleic fatty acids on reproduction and serum biochemistry in Barki ewes

Dietary Alfalfa and Calcium Salts of Long-Chain Fatty Acids Alter Protein Utilization, Microbial Populations, and Plasma Fatty Acid Profile in Holstein Freemartin Heifers

“…Similar results were reported in ruminants, although the effects on lipid metabolism were not consistent. For example, Abd El-Hamid et al reported that CSFA can increase the concentration of triglycerides, cholesterol, HDL-C, and LDL-C in ewe serum, while Bhatt et al reported that CSFA improved serum cholesterol content of lambs. The increased plasma concentration of cholesterol and LDL-C were attributed to the increased intestinal secretion of lipoproteins .…”

“…For example, Abd El-Hamid et al reported that CSFA can increase the concentration of triglycerides, cholesterol, HDL-C, and LDL-C in ewe serum, while Bhatt et al reported that CSFA improved serum cholesterol content of lambs. The increased plasma concentration of cholesterol and LDL-C were attributed to the increased intestinal secretion of lipoproteins . The supplement of CSFA to cattle diet may stimulate lipoprotein cholesterol expel through the intestine and improve circulating plasma cholesterol and low density lipoprotein cholesterol concentrations .…”

“…The increased plasma concentration of cholesterol and LDL-C were attributed to the increased intestinal secretion of lipoproteins. 41 The supplement of CSFA to cattle diet may stimulate lipoprotein cholesterol expel through the intestine and improve circulating plasma cholesterol and low density lipoprotein cholesterol concentrations. 43 The dietary treatment had no effect on the transaminase, and this was consistent with previous studies, 41 which indicated that CSFA did not affect the metabolism of amino acids in the liver.…”

Effect of varying amounts of linseed oil or saturated fatty acids around insemination on reproductive and blood parameters of ewes

“…Experiments on goats revealed that incorporating palmitic oil into the diet for 72 days increased the cholesterol levels compared to plasma samples of the n-3 enriched fed goats during the breeding season [25]. Other experiments performed on ewes indicated that supplementing the diet with saturated or PUFAs before and after mating resulted in greater plasma cholesterol and other lipid metabolites compared to the isocaloric control fed (non-additional fat) treated ewes [46,47].…”

“…Experiments on goats revealed that incorporating palmitic oil into the diet for 72 days increased the cholesterol levels compared to plasma samples of the n-3 enriched fed goats during the breeding season [ 25 ]. Other experiments performed on ewes indicated that supplementing the diet with saturated or PUFAs before and after mating resulted in greater plasma cholesterol and other lipid metabolites compared to the isocaloric control fed (non-additional fat) treated ewes [ 46 , 47 ]. Composition and amounts of FA source, species of animal, starting of treatment according to the reproductive status of the animal (breeding or non-breeding season), length of treatment, stage of cyclicity, geographical area, and breeds of sheep (tailed or fat-tailed) would affect the endocrine response following dietary challenge with FA [ 27 , 48 ].…”