Changes in tissue lipid levels in the freshwater catfishClarias batrachus associated with the reproductive cycle     

Bechan Lal  T. P. Singh 《Fish physiology and biochemistry》1987,3(4):191-201

The levels of free fatty acid (FFA), monoglyceride (MG), diglyceride (DG), triglyceride (TG), phospholipid (PL), free cholesterol (CF) and esterified cholesterol (CE) were measured in the liver, plasma, ovary, abdominal fat and muscle during different phases of the annual reproductive cycle in femaleClarias batrachus. During the preparatory phase, hepatic lipogenic activity predominated over mobilization and consumption. In the prespawning season, an increased hepatic lipogenic activity was maintained, but lipids were transferred from the liver to the ovary. In the spawning phase, the diminished food intake, and enhanced caloric demand for spawning behaviour and activity limited hepatic lipogenic activity, and TG lypolysis was increased as was the production of more FFA. Maximum accumulation of vitellogenin, as reflected by maximum rise in ovarian PL titre was characteristic of this phase. Marked reductions in ovarian lipid occurred during the postspawning phase. In the resting phase, there was a recovery of lipogenic activity, but PL synthesis was still inhibited. In contrast to other investigated teleosts, there were extremely high level of FFA in liver, plasma, ovary and muscle throughout the annual reproductive cycle inC. batrachus. FFA appears to be the main lipid metabolite which had a very high turnover. As evidenced by the high TG content, abdominal fat seems to be the main fat depot, not the liver and muscle.Correspondent author  相似文献   

Dog Age and Breeds Associated with High Plasma Cholesterol and Triglyceride Concentrations     

Shiho USUI  Yasushi MIZOGUCHI  Hidemi YASUDA  Nobuaki ARAI  Yuzo KOKETSU 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2014,76(2):269-272

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食用植物油掺假检测方法的研究进展     

黄纪念  曹艳明  张丽霞 《农产品加工．学刊》2011,(2):67-71

根据食用植物油中的特征物质、甘三酯及脂肪酸组成的不同,研究了一些食用植物油的掺假检测,分析了这些检测方法的优缺点及影响因素,并对掺伪检测技术的发展方向进行了展望。  相似文献   

果蔬源胰脂肪酶抑制剂的筛选     

刘蕊  张景照  郑毅男  徐宝军  刘文丛 《吉林农业大学学报》2012,34(2):211-215

通过从三油酸甘油酯释放油酸的释放率来判定胰脂肪酶活性的方法,研究并比较了30种果蔬乙醇提取物的减肥作用.30种果蔬70％乙醇提取物对胰脂肪酶作用的测定结果表明:青辣椒乙醇提取物对胰脂肪酶的抑制作用最强,抑制率为46.15％,山竹提取物抑制率为29.87％,白萝卜、柠檬和圣女果提取物对胰脂肪酶的抑制率均达到20％以上.大蒜提取物对胰脂肪酶有较强的促进作用(29.64％),陈皮和山楂提取物对胰脂肪酶的促进率分别为6.38％和7.66％.  相似文献   

A Comparison of the Plasma Fructose Concentrations in Dogs and Cats and Changes in the Fructose Concentrations in Dogs Following Intravenous Administration of Fructose     

Arai  T.  Hashimoto  K.  Muzutani  H.  Kawabata  T.  Sako  T.  Washizu  T. 《Veterinary research communications》1999,23(4):203-209

The plasma concentrations of fructose, glucose, free fatty acids (FFA) and triglycerides (TG) were measured in dogs and cats. Changes in these concentrations were investigated in dogs by an intravenous fructose tolerance test (IVFTT) at a dose of 0.1 g/kg body weight. Fructose concentrations in the plasma of dogs were significantly higher than those of cats. There was no significant difference in plasma glucose concentrations between dogs and cats. Plasma FFA concentrations decreased and TG concentrations increased after feeding in both dogs and cats. During the IVFTT, the plasma fructose concentrations in the dogs increased rapidly to a peak by 2 min and then decreased to half of the peak by 5 min after the administration of fructose. Administration of fructose resulted in an increase in the plasma TG concentrations and reduced plasma FFA concentrations in the dogs. Only 4% of the administered fructose was detected in the urine of dogs following IVFTT. Plasma fructose was considered to be rapidly absorbed and metabolized in both dogs and cats. However, as with glucose metabolism, there appear to be some differences in fructose metabolism between dogs and cats.  相似文献   

Daily variations of serum lipids in Ovis aries under different lighting and feeding conditions     

Piccione G  Giannetto C  Fazio F  Bertolucci C 《Journal of animal physiology and animal nutrition》2011,95(5):603-608

The aim of this study was to discriminate the impact of lighting and feeding conditions on the regulation of lipid metabolism in Ovis aries. Six clinically healthy female Comisana ewes, not pregnant and not lactating were kept under different environmental conditions: 12:12 light-dark (LD) cycle, constant darkness and fasting. Blood samples were collected at the end of each period of treatment every 4 h for a 24-h period. Blood concentration of triglycerides, total cholesterol and non-esterified fatty acid showed robust daily rhythmicity in ewes maintained under 12:12 LD cycle and fed ad libitum. Conversely, either constant darkness or fasting had a deep impact on all lipid parameters investigated. Our results suggest that lighting and feeding conditions have an impact on daily variations in lipid metabolism in ewes.  相似文献   

Oxidative red blood cell damage associated with propofol and intravenous lipid emulsion therapy in a dog treated for 5‐fluorouracil toxicosis     

Cory W. Romans  Thomas K. Day  Joshua J. Smith 《Journal of Veterinary Emergency and Critical Care》2020,30(4):481-486

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The effect of exercise on blood parameters in standardbred and Finnish-bred horses     

A. R. Ps  T. Soveri  H. E. Oksanen 《Acta veterinaria Scandinavica》1983,24(2):170-184

Serum enzyme activities, albumin, protein, urea, cholesterol, triglyceride, free fatty acid, glucose and lactate concentrations as well as hematocrit values were measured in standardbred and Finnish-bred horses at rest and after (i) a short controlled exercise and (ii) a trotting competition. There were no breed differences in the enzyme activities at rest and the 2 breeds responded in the same manner to the exercise. Only after the race proper significant increases in the enzyme activities were found. The activities rose more in the standardbred horses than in the Finnish-bred horses. Urea and cholesterol concentrations did not change after either exercise. Protein and albumin concentrations as well as hematocrit values increased significantly after the exercise. At rest hematocrit values were significantly higher in the standardbred horses and the difference persisted throughout the exercise. After the race proper also albumin and protein concentrations were higher in the standard-bred than in the Finnish-bred horses. Free fatty acid and triglyceride concentrations increased significantly during the exercise. Although glucose and lactate concentrations increased in both breeds, the behaviour of these parameters differed. Glucose concentrations remained increased for a longer period and the recovery from the increased lactate level was faster in the standardbred than in the Finnish-bred horses. The observed differences suggest that the standardbred horses have higher anaerobic capacity than the Finnish-bred horses.  相似文献   

Severe hypophosphataemia associated with the management of hyperlipaemia in a miniature pony          下载免费PDF全文

N. J. Bamford  C. M. Rosales  A. J. Williamson  C. M. Steel  B. S. Tennent‐Brown 《Equine Veterinary Education》2018,30(7):352-355

This report describes a case of severe hypophosphataemia associated with the management of hyperlipaemia in a miniature pony following colic surgery. Clinical signs attributed to hypophosphataemia included obtundation, anorexia, tachycardia, tachypnoea and generalised muscle fasciculations. Hyperlipaemia was managed with enteral and partial parenteral nutrition; insulin was also administered to control hyperglycaemia after the initiation of caloric support. Specific therapy for hypophosphataemia consisted of parenteral potassium phosphate at 0.03 mmol/kg bwt/h (i.v.). The pony made a full recovery without further complications. Hypophosphataemia may be an under‐recognised clinical problem in certain populations of critically ill equids, such as those with hyperlipaemia and receiving insulin as part of their management. The routine measurement of phosphate concentration in these cases is recommended.  相似文献   

Early Weaning as Cause of Malnutrition in Half-bred Zebu Calves     

Coppo JA 《Veterinary research communications》2003,27(3):207-210

Veterinary Research Communications -  相似文献