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Objective To establish the prevalence of intussusceptions involving the caecum in a population of horses admitted to a university hospital for colic. Design Retrospective clinical study Methods Medical records of all horses admitted to the Massey University Veterinary Teaching Hospital between 1991 and 2004 were examined for information of those horses diagnosed with an intussusception involving the caecum. Results A total of 135 horses were admitted for colic surgery during the study period and 61 horses had a diagnosis of ileocaecal (37), caecocaecal (5) or caecocolic intussusception (19) made either at surgery or necropsy. Of the horses with ileocaecal intussusception, 32 had an incomplete hand-sewn ileocaecostomy without reduction and 29 survived to discharge. All the horses with caecocaecal intussusceptions were diagnosed preoperatively via rectal examination and/or transabdominal ultrasound: 2 were euthanased at surgery and 3 survived to discharge. In the 19 horses with caecocolic intussusceptions, manually reduction at surgery was performed in 6 and 5 of them survived to discharge. A typhlectomy was performed via a colotomy in 6 horses, 3 of which survived to discharge. Conclusions The high prevalence of intussusceptions involving the caecum seen at this referral centre may indicate a higher prevalence in New Zealand than is reported elsewhere in the world. Clinical relevance Intussusceptions involving the caecum should be considered as a differential diagnosis in horses presenting with chronic low-grade colic. Transabdominal ultrasound is useful for identifying caecocaecal and caecocolic intussusceptions. Hand-sewn side-to-side incomplete ileocaecostomy is a quick, effective and safe method of surgical treatment of ileocaecal intussusceptions. 相似文献
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J. Xiao E. Sakaguchi X. Min K. Kawasaki 《Journal of animal physiology and animal nutrition》2016,100(4):715-722
The effect of mannitol on bone‐related mineral absorption and retention and the mechanism was investigated in this study. Fourteen 8‐week‐old male Wistar rats in experiment 1 and same number and age cecectomized Wistar male rats in experiment 2 were divided into two subgroups of seven animals, respectively, fed diets containing 0 or 4% mannitol for 28 days. Mineral balance tests were determined twice during days 8–12 and days 22–26, and the rats were slaughtered on day 28 both in experiment 1 and experiment 2. The whole caecum and colon were collected with the content to analyse tissue weight, content weight, content's pH and moisture, organic acids' concentration and mineral levels. In experiment 1, Ca absorption and retention and Mg absorption were significantly increased by mannitol feeding during days 8–12. Caecal total weight, tissue weight and content weight were increased, the pH of caecum and colon was reduced, and the concentrations of caecal short‐chain fatty acids (SCFAs) were modified by mannitol feeding. In experiment 2, during days 8–12 and days 22–26, Ca absorption and retention were significantly lowered by mannitol feeding in cecectomized rats; however, mannitol feeding decreased Mg absorption during days 8–12, but did not impact Mg retention. Colonic total weight, tissue weight and content weight were significantly increased, and colonic pH was reduced by mannitol feeding. In conclusion, dietary mannitol increased the absorption of Ca and Mg and the caecum markedly contributed to this promoting effect of mannitol. 相似文献
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在对雏鸡人工感染柔嫩艾美耳球虫后6、8、13、20天,分别对感染雏与未感染雏盲肠内容物中梭杆菌、真杆菌、消化球菌、乳酸杆菌、类杆菌、肠球菌、葡萄球菌和肠杆菌等8种主要正常菌群进行定性、定量分析。结果发现在球虫感染第20天,感染组有益菌如乳酸杆菌的数量低于对照组,差异极显著(P<0.01),有害菌如梭杆菌、葡萄球菌数量感染组高于对照组,其中梭杆菌差异显著(P<0.05),葡萄球菌差异极显著(P<0.01)。 相似文献
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C. L. Oldham T. F. Robinson Z. R. Hunter L. Taylor J. White N. P. Johnston 《Journal of animal physiology and animal nutrition》2014,98(5):908-913
The purpose of this study was to determine the diurnal composition and concentration of volatile fatty acids (VFA) and to determine VFA composition and concentration differences between stomach compartment 1 (C1) and caecum of alpacas fed grass and alfalfa hay. The study was divided into two experiments. In Experiment 1 (EXP 1), 10 male alpacas (3+ years old, 65 kg BW) were divided into two groups, housed in drylot pens, provided ad libitum water and fed alfalfa (AH) or grass hay (GH) for 30 days. The alpacas were slaughtered and the digestive tract collected, divided into sub‐tract sections, weighed and digesta sampled for pH, dry matter (DM) and NDF. Volatile fatty acid composition and concentration were determined on C1 and caecal material. Four adult male (3+ years old, 60 kg BW), C1 fistulated alpacas were housed in metabolism crates and divided into two forage groups for Experiment 2 (EXP 2). Alpacas were fed the forages as in EXP 1. Diurnal C1 VFA samples were drawn at 1, 3, 6, 9, 12, 18 and 24 h post‐feeding. There were no differences between forages for tract weight, C1 and caecum digesta DM or NDF. Differences were noted (p < 0.05) for pH between forages and sub‐tract site. Volatile fatty acids concentrations were different (p < 0.05) for forage and site, and total VFA was higher for AH than GH (110.6 and 79.1 mm ) and C1 than caecum (40.7 and 27.6 mm ). Proportion of VFA was significant (p < 0.05) for forage and site, C1 acetate highest for GH (84.8 vs. 74.0 mm ) and caecum acetate 83.7 and 76.2 mm for GH and AH respectively. These data demonstrate the level of VFA produced in C1 and the caecum of alpacas and the diurnal VFA patterns. Composition of VFA is similar to other ruminant species. 相似文献
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复合酸化剂在断奶仔猪饲料中的应用研究 总被引：1，自引：0，他引：1
将96头断奶1周杜×长×大仔猪(35日龄)随机分成4组,每组24头,分为4个重复,每个重复6头,进行28d试验。试验采用单因子完全随机化设计,共设4个处理,包括对照组和3个试验组,基础日粮相同,对照组为不添加酸化剂的基础日粮,试验1、2、3组分别为添加0.10%、0.15%和0.20%复合酸化剂的基础日粮。结果表明:添加0.15%和0.20%复合酸化剂均能显著提高断奶仔猪日增重、小肠胰蛋白酶、淀粉酶活性及盲肠乳酸杆菌数量,降低胃内容物pH,以添加0.15%复合酸化剂最好,能够显著降低料肉比和盲肠大肠杆菌数量。 相似文献
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为了研究不同水平膨化血粉对生长鹅生长性能及盲肠微生物菌群的影响,试验选择300只28日龄、体重为(1 142.68±50.64)g的豁眼鹅,随机分为3组(日粮中分别添加1.5%、3.0%、4.5%的膨化血粉),每组设5个重复,每个重复20只鹅,进行为期28 d的饲养试验。结果表明:不同水平的膨化血粉对生长鹅的生长性能有显著的影响,3.0%膨化血粉组的平均日增重、平均日采食量显著高于膨化血粉4.5%组、膨化血粉1.5%组;在料重比方面,3.0%膨化血粉组显著低于其他两组。在3种不同水平的膨化血粉处理中,3.0%膨化血粉组乳酸杆菌和双歧杆菌的数量显著高于其他组,而大肠杆菌的数量却最低;1.5%膨化血粉组乳酸杆菌和双歧杆菌的数量均低于其他组,而大肠杆菌的数量在3种处理中最高。说明在生长鹅的基础日粮中添加3.0%膨化血粉具有较好的应用效果。 相似文献
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日粮中性洗涤纤维水平对断奶至2月龄肉兔生产性能、消化代谢和盲肠发酵的影响 总被引：3，自引：0，他引：3
80只断奶新西兰兔分成5组,饲喂5种中性洗涤纤维(NDF)水平的日粮(分别为24%、27%、30%33%和36%),研究了日粮NDF水平对断奶至2月龄的肉兔生产性能、营养物质消化利用、免疫指标、盲肠纤维酶活性和盲肠内环境的影响。结果表明:日粮NDF水平对试兔日增重、饲料转化率影响显著(P<0.05),随NDF水平增加,日增重先增加后降低,料重比先降低后增加,30%NDF水平对日增重最高为31.52g/d,饲料转化率最低为3.23:1。随日粮NDF水平的增加,粗纤维、能量、粗蛋白和粗脂肪消化率显著或极显著降低(P<0.05,P<0.01),NDF消化率显著提高(P<0.05),氮沉积先升高后下降,以30%NDF组最高为1.24g/d。不同NDF间胸腺指数和脾脏指数差异不显著(P>0.05)。日粮NDF能极显著提高盲肠纤维素酶的活性(P<0.01),纤维素酶活性由13.79IU/g提高到58.68IU/g。NDF水平对断奶至2月龄试兔盲肠发育影响显著(P<0.05),盲肠占活重的比例随NDF水平的增加呈上升趋势。盲肠氨氮浓度呈下降趋势,24%、27%NDF组与36%NDF组差异显著(P<0.05),总VFA含量呈上升趋势,24%NDF和36%NDF组差异显著(P<0.05),VFA中乙酸比例上升,丙酸、丁酸比例下降。综合以上结果,断奶至2月龄肉兔NDF水平以30%～33%为宜。 相似文献
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Lipomatosis is an uncommon cause of colic. This case report details the pre‐ and intraoperative findings of a 9‐year‐old gelding, presented with acute abdominal pain. Exploratory laparotomy revealed a massive fatty infiltrate involving an extensive portion of the base and mid‐body of the caecum. To the authors' knowledge, this is the first report of an infiltrative lipomatous lesion of the equine caecum. 相似文献