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1.
昭苏马场燕麦草地适时刈割及青贮调制研究 总被引：1，自引：0，他引：1
试验对伊犁昭苏马场燕麦地分别于7月中旬和8月中旬刈割调制青干草,比较和分析不同刈割期对产草量及加工牧草品质的影响;并用7月份刈割燕麦草调制青贮,查明其发酵品质和营养成分。结果表明,7月份刈割燕麦草地的鲜草产量显著高于8月份刈割,但不同刈割期干草产量无显著影响(P0.05)。8月份刈割草的中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)含量极显著增加(P0.01),而粗蛋白(CP)含量极显著降低(P0.01)。适时刈割的燕麦草青贮的乳酸含量达到3.19%,p H下降至3.85。青贮的CP含量与原料相比极显著增加(P0.01),而NDF和ADF含量与原料相比分别减少16.13%和12.46%。结果表明,昭苏马场种植燕麦并适时刈割可提高产草量和品质,刈割燕麦草的青贮调制能保持原料草有的营养成分含量。 相似文献
2.
《中国草地学报》2020,(3)
为探究不同品种以及同日内不同刈割时间对苜蓿青贮发酵品质及蛋白质降解的影响,采用4个苜蓿品种,分别于同日6∶00、12∶00、18∶00刈割,室温发酵56d后开封,分析发酵品质、微生物组成和蛋白组分。结果表明,不同品种苜蓿的粗蛋白、中性洗涤纤维、酸性洗涤纤维和可溶性糖(WSC)含量以及附着微生物的数量存在显著性差异(P0.05);推迟刈割时间,苜蓿原料的干物质,WSC含量以及附着微生物数量显著增加(P0.05)。品种A与C的发酵品质显著优于品种B与D(P0.05),其乳酸含量较高而pH值、乙酸与氨态氮含量较低(P0.05)。随着刈割时间的推迟,所有苜蓿青贮的乳酸含量及乳乙比显著增加(P0.05),pH值、乙酸、丁酸、非蛋白氮与氨态氮含量显著降低(P0.05),显著抑制蛋白降解。综上所述,不同品种的原料特性显著影响苜蓿青贮发酵品质,推迟刈割时间可以有效改善青贮发酵品质,减少蛋白质的降解。 相似文献
3.
以内蒙古半干旱山地草原天然混合牧草为原料,通过添加不同的乳酸菌添加剂进行青贮对比试验,探讨不同乳酸菌添加剂对天然牧草青贮饲料品质的影响,筛选适宜的乳酸菌添加剂.结果表明:5种添加剂均能不同程度地改善天然牧草青贮品质,经过感官评定,乳酸菌添加剂青贮饲料优于对照组;青贮饲料的发酵品质和营养价值综合分析表明,在提高乳酸含量,降低氨态氮含量、pH值、酸性洗涤纤维等方面表现最佳的是中农1号乳酸菌,其次是中农3号,中农2号、4号和8号添加剂青贮效果改善不明显. 相似文献
4.
分别于2013年7月上中旬和8月上中旬对新疆维吾尔自治区伊犁哈萨克自治州昭苏马场人工割草地进行刈割,并进行了产草量测定和牧草品质的比较分析。结果表明,刈割时期对建植第3年和第7年割草地的鲜草和干草产量无明显影响;8月上中旬刈割牧草的粗蛋白（CP）含量与7月上中旬刈割牧草相比显著降低（P〈0．05）;刈割牧草中。豆科牧草的比例无明显变化,但8月上中旬刈割牧草的叶茎比显著降低（P〈0．01）;在8月上中旬刈割的牧草中,中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）含量有不同程度的增加（P〈0．05）。由试验可知,昭苏马场的合理割草时间以7月上中旬为宜,此时牧草的产量和质量较佳。 相似文献
5.
施氮和刈割对辽西北退化草地牧草产量和品质的影响 总被引：2，自引：0，他引：2
施氮和刈割是天然草地有效管理方式。为探究退化草地高效利用方式,以辽宁省西北部农牧交错区退化草地为研究对象,设置氮肥添加（0、10 g N·m-2·a-1）和刈割处理（留茬高度3、6、12 cm、不刈割）,通过连续两年测定牧草产量和22项牧草品质指标,分析施氮和刈割对辽西北退化草地牧草产量和品质的影响。结果表明：1）施氮显著提高了2018和2019年产草量、粗蛋白和2019年牧草产奶净能、维持净能、增重净能、总可消化养分、奶吨指数,极显著降低了2019年酸性洗涤纤维含量,对退化草地牧草产量、净能以及养分含量的提升均有促进作用。2）刈割显著影响了2018和2019年牧草中性洗涤纤维、钙元素、磷元素含量、体外干物质消化率和相对饲喂价值,2018年粗灰分、镁元素含量以及2019年非纤维性碳水化合物、维持净能、增重净能、总可消化养分和相对饲草品质,在对退化草地进行适度利用的同时牧草品质也有较大提升。3）施氮和刈割交互作用对退化草地牧草粗蛋白、粗灰分、产奶净能以及奶吨指数有显著影响。4）牧草粗灰分、酸性洗涤纤维、中性洗涤纤维、可消化中性洗涤纤维、中性洗涤纤维消化率、镁元素、产奶净能、维持净能、增重净能、奶吨指数、总可消化养分以及相对饲喂价值共12项营养品质指标与粗蛋白之间存在显著相关关系。研究表明,施氮和刈割作为退化草地的有效管理和利用方式,单独作用或交互作用均对牧草产量和品质的提升有不同程度的正向反馈,其中以施氮结合留茬3 cm刈割处理下牧草产量和品质最高,可为退化草地的合理利用和可持续发展提供理论参考。 相似文献
6.
为提高天然牧草利用率，筛选天然牧草适宜刈割时间，探讨不同降雨量对天然牧草营养品质的影响，本研究以典型草原天然牧草为原料，设定12个处理，3次重复，通过双因素方差试验设计，分析天然牧草营养品质和能量变化规律，旨在为草原牧区牧草刈割时间提供理论依据。结果显示：随着刈割时间的推迟，天然牧草干物质（DM）、中性洗涤纤维（NDF）、酸性洗涤纤维（ADF）含量逐渐增加，在9月10日降雨量为37.5 mm时，DM、ADF和NDF达到最大值，含量分别为56.82% DM、36.96% DM、68.45% DM|粗蛋白质（CP）含量表现为先增加后降低的变化趋势，在8月20日降雨量为37.5 mm时，CP含量达到最大值，为11.81% DM。天然牧草刈割过程中降雨对可溶性碳水化合物（WSC）、总能（GE）和消化能（DE）增加具有促进作用。因此，在8月20日刈割，可获得优质天然牧草，若在8月20日之后刈割，牧草品质降低，难以获得优质牧草，若有适量降雨，可适当推迟刈割时间。
[关键词] 天然牧草|刈割时间|降雨量|营养品质|能量 相似文献
7.
《草业学报》2019,(12)
以新疆石河子市第八师147团紫花苜蓿为研究材料,探究不同刈割茬次及生育期苜蓿青贮营养品质和发酵品质间的差异。选择3个刈割茬次,现蕾期、初花期和盛花期3个生育期处理;分别于青贮发酵第3、9、15、30、45、60天取样测定其青贮品质。结果表明:苜蓿青贮过程中,刈割茬次与生育期的交互作用对干物质、中性洗涤纤维、粗蛋白、乳酸和乙酸含量产生极显著影响(P0.01),苜蓿青贮在发酵过程中会降低营养物质的含量,发酵60 d时,第3茬盛花期苜蓿青贮的DM含量最高,达到39.03%,第3茬现蕾期苜蓿青贮的酸性洗涤纤维和中性洗涤纤维含量最低,第1茬现蕾期CP、WSC含量最高,分别是20.21%和4.39%,第2茬现蕾期的乳酸和乙酸含量相对其他处理较高,第1茬现蕾期氨态氮含量最低。各处理综合评价排序:第1茬现蕾期处理第3茬现蕾期处理第1茬初花期处理第2茬现蕾期处理第3茬初花期处理第1茬盛花期处理第3茬盛花期处理第2茬初花期处理第2茬盛花期处理。刈割越早,苜蓿越幼嫩,营养品质高,适口性好,并有利于植株再生,苜蓿青贮的营养品质和发酵品质也较晚刈割的其他处理好。因此,控制苜蓿刈割时间可改善苜蓿青贮营养、发酵品质,提高苜蓿利用率。 相似文献
8.
以新疆石河子市第八师147团紫花苜蓿为研究材料,探究不同刈割茬次及生育期苜蓿青贮营养品质和发酵品质间的差异。选择3个刈割茬次,现蕾期、初花期和盛花期3个生育期处理;分别于青贮发酵第3、9、15、30、45、60天取样测定其青贮品质。结果表明:苜蓿青贮过程中,刈割茬次与生育期的交互作用对干物质、中性洗涤纤维、粗蛋白、乳酸和乙酸含量产生极显著影响(P<0.01),苜蓿青贮在发酵过程中会降低营养物质的含量,发酵60 d时,第3茬盛花期苜蓿青贮的DM含量最高,达到39.03%,第3茬现蕾期苜蓿青贮的酸性洗涤纤维和中性洗涤纤维含量最低,第1茬现蕾期CP、WSC含量最高,分别是20.21%和4.39%,第2茬现蕾期的乳酸和乙酸含量相对其他处理较高,第1茬现蕾期氨态氮含量最低。各处理综合评价排序:第1茬现蕾期处理>第3茬现蕾期处理>第1茬初花期处理>第2茬现蕾期处理>第3茬初花期处理>第1茬盛花期处理>第3茬盛花期处理>第2茬初花期处理>第2茬盛花期处理。刈割越早,苜蓿越幼嫩,营养品质高,适口性好,并有利于植株再生,苜蓿青贮的营养品质和发酵品质也较晚刈割的其他处理好。因此,控制苜蓿刈割时间可改善苜蓿青贮营养、发酵品质,提高苜蓿利用率。 相似文献
9.
晾晒时间对初花期紫花苜蓿青贮发酵品质的影响 总被引：1，自引：0，他引：1
本试验旨在研究不同晾晒时间对3个品种紫花苜蓿（Medicago sativa）初花期青贮发酵品质的影响。在刈割后经2、4和6 h晾晒的紫花苜蓿青贮原料中加入青贮添加剂进行裹包青贮180 d,然后通过现场感官评定和实验室分析评价紫花苜蓿青贮的发酵品质。结果表明,晾晒4~6 h可以提高3个品种的紫花苜蓿的青贮发酵品质;晾晒6 h与2 h相比丁酸、氨态氮含量显著降低（P<0.01）,可溶性糖的含量极显著增加（P<0.01）;粗蛋白含量在晾晒4 h时能很好地保存（P<0.01）;加入添加剂可显著降低青贮饲料中的中性洗涤纤维和酸性洗涤纤维含量（P<0.01）。3个品种的紫花苜蓿均在晾晒4~6 h时青贮效果最好。 相似文献
10.
苜蓿与直穗鹅观草混贮发酵品质研究 总被引：4，自引：0，他引：4
以苜蓿(Medicago sativa)与直穗鹅观草（Roegneria turczaninovi）为原料,按不同比例混贮,通过分析发酵品质和营养成分,优化混合青贮比例。结果表明,苜蓿青贮后干物质（DM）和中性洗涤纤维（NDF）含量增加,粗蛋白（CP）、 酸性洗涤纤维（ADF）、可溶性碳水化合物（WSC）含量降低,直穗鹅观草青贮后DM、NDF、CP及ADF含量增加,粗脂肪（EE）和WSC降低;混贮处理CP和Ca含量显著高于直穗鹅观草单贮,而显著低于苜蓿单贮,DM、NDF、ADF含量显著低于直穗鹅观草单贮;随直穗鹅观草在混贮比例中的提高,pH值呈降低趋势,混贮中乳酸占总酸含量居于两种牧草单贮之间,苜蓿与直穗鹅观草3∶7混贮乙酸含量占总酸含量显著高于其他处理（P＜0.05）,为33.9%,混贮处理丁酸产生较少;苜蓿与直穗鹅观草混贮氨态氮占总氮含量显著低于苜蓿单贮（P＜0.05）,且显著高于直穗鹅观草单贮（P＜0.05）;青贮后各处理乳酸菌数达到106 cfu/g（以鲜物质为基础）,较青贮前提高,各混贮处理乳酸菌和霉菌数高于两种牧草单贮;直穗鹅观草单贮发酵品质评分为97分,且氨态氮含量较低,为最佳处理。 相似文献
11.
试验选用96头平均体重14.82 kg左右的杜×长×大断奶仔猪,随机分成4组,每组3栏,每栏8头(公母各半)。对照组饲喂基础日粮,试验1、2、3组分别添加1%80目白术、0.2%白术多糖和1%微米白术。试验期30 d。结果表明:在生长性能方面,与对照组相比,1%微米白术添加组可显著提高日增重(P0.05)、降低饲料增重比和腹泻率,而且效果优于1%80目白术组和0.2%白术多糖组,在肠道形态和肠道微生态区系方面,与对照组相比,日粮添加1%80目白术、0.2%白术多糖、1%微米白术均可不同程度的提高十二指肠和空肠的绒毛高度,加深十二指肠和空肠的隐窝深度,并且增加肠道微生态区系的多样性,其中以1%微米白术添加组的效果最佳。 相似文献
12.
Sissay, M.M., Uggla, A. and Waller, P.J., XXXX. Prevalence and seasonal incidence of nematode parasites and fluke infections
of sheep and goats in eastern Ethiopia. Tropical Animal Health and Production, XXXX. A 2-year abattoir survey was carried out to determine the prevalence, abundance and seasonal incidence of gastro-intestinal
(GI) nematodes and trematodes (flukes) of sheep and goats in the semi-arid zone of eastern Ethiopia. During May 2003 to April
2005, viscera including liver, lungs and GI tracts were collected from 655 sheep and 632 goats slaughtered at 4 abattoirs
located in the towns of Haramaya, Harar, Dire Dawa and Jijiga in eastern Ethiopia. All animals were raised in the farming
areas located within the community boundaries for each town. Collected materials were transported within 24 h to the parasitology
laboratory of Haramaya University for immediate processing. Thirteen species belonging to 9 genera of GI nematodes (Haemonchus contortus, Trichostrongylus axei, T. colubriformis, T. vitrinus, Nematodirus filicollis, N. spathiger, Oesophagostomum
columbianum, O. venulosum, Strongyloides papillosus, Bunostomum trigonocephalum, Trichuris ovis, Cooperia curticei and Chabertia ovina), and 4 species belonging to 3 genera of trematodes (Fasciola hepatica, F. gigantica, Paramphistomum {Calicohoron} microbothrium and Dicrocoelium dendriticum) were recorded in both sheep and goats. All animals in this investigation were infected with multiple species to varying
degrees. The mean burdens of adult nematodes were generally moderate in both sheep and goats and showed patterns of seasonal
abundance that corresponded with the bi-modal annual rainfall pattern, with highest burdens around the middle of the rainy
season. In both sheep and goats there were significant differences in the mean worm burdens and abundance of the different
nematode species between the four geographic locations, with worm burdens in the Haramaya and Harar areas greater than those
observed in the Dire Dawa and Jijiga locations. Similar seasonal variations were also observed in the prevalence of flukes.
But there were no significant differences in the prevalence of each fluke species between the four locations. Overall, the
results showed that Haemonchus, Trichostrongylus, Nematodirus, Oesophagostomum, Fasciola and Paramphistomum species were the most abundant helminth parasites of sheep and goats in eastern Ethiopia. 相似文献
13.
Rassnick KM Gieger TL Williams LE Ruslander DM Northrup NC Kristal O Myers NC Moore AS 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2001,15(3):196-199
1-(2-Chloroethyl)3-cyclohexyl-1-nitrosourea (CCNU) is an alkylating agent in the nitrosourea subclass. A prospective evaluation of CCNU was done to determine the maximally tolerated dosage of CCNU in tumor-bearing cats. Response data were obtained when available. Twenty-five cats were treated with CCNU at a dosage of 50-60 mg/m3 body surface area. Complete hematologic data were available for 13 cats. Neutropenia was the acute dose-limiting toxicity. The median neutrophil count at the nadir was 1,000 cells/microL (mean, 2,433 cells/microL; range, 0-9,694 cells/microL). The time of neutrophil nadir was variable, occurring 7-28 days after treatment, and counts sometimes did not return to normal for up to 14 days after the nadir. Based on these findings, a 6-week dosing interval and weekly hematologic monitoring after the 1st treatment with CCNU are recommended. The nadir of the platelet count may occur 14-21 days after treatment. The median platelet count at the nadir was 43,500 cells/microL. No gastrointestinal, renal, or hepatic toxicities were observed after a single CCNU treatment, and additional studies to evaluate the potential for cumulative toxicity should be performed. Five cats with lymphoma and 1 cat with mast cell tumor had measurable responses to CCNU. Phase II studies to evaluate antitumor activity should be completed with a dosing regimen of 50-60 mg/m3 every 6 weeks. 相似文献
14.
Davis MS Willard MD Nelson SL Mandsager RE McKiernan BS Mansell JK Lehenbauer TW 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(3):311-314
Human and equine athletes are reported to have a high prevalence of gastric disease, and anecdotal evidence suggests a similar phenomenon applies to racing sled dogs. To investigate the prevalence of gastric disease in racing sled dogs, we conducted 2 gastroscopy studies on dogs competing in the annual Iditarod Sled Dog Race. A pilot study of dogs that were either dropped from the 2000 Iditarod Sled Dog Race because of illness or that finished the race indicated that, approximately 5 days after competing, 10 of 28 dogs (35%) had endoscopic evidence of gastric ulceration, erosion, or hemorrhage. The next year, an endoscopic study of 73 dogs participating in the 2001 Iditarod race was performed in order to evaluate a larger population of dogs. Data from 70 of these dogs could be used; 34 (48.5%) had ulceration, erosion, gastric hemorrhage, or some combination of these findings. When this group of 70 dogs was compared retrospectively to a control group of 87 dogs presented to the Texas A&M University (TAMU) Veterinary Medical Teaching Hospital, the Iditarod sled dogs had a significantly higher prevalence (P = .049) of gastric lesions. These findings suggest that, similar to athletes of other species, elite canine athletes have an increased prevalence of gastric disease compared to the canine population at large. 相似文献
15.
B. Cinar Kul N. Bilgen J.A. Lenstra O. Korkmaz Agaoglu B. Akyuz O. Ertugrul 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2015,132(6):449-453
Genetic variations in chromosome Y are enabling researchers to identify paternal lineages, which are informative for introgressions and migrations. In this study, the male‐specific region markers, sex‐determining region‐Y (SRY), amelogenin (AMELY) and zinc finger (ZFY) were analysed in seven Turkish native goat breeds, Angora, Kilis, Hair, Honaml?, Norduz, Gürcü and Abaza. A SNP in the ZFY gene defined a new haplotype Y2C. All domestic haplogroups originate from Capra aegagrus, while the finding of Y1A, Y1B, Y2A and Y2C in 32, 4, 126 and 2 Turkish domestic goats, respectively, appears to indicate a predomestic origin of the major haplotypes. The occurrence of four haplotypes in the Hair goat and, in contrast, a frequency of 96% of Y1A in the Kilis breed illustrate that Y‐chromosomal variants have a more breed‐dependent distribution than mitochondrial or autosomal DNA. This probably reflects male founder effects, but a role in adaptation cannot be excluded. 相似文献
16.
Furosemide continuous rate infusion in the horse: evaluation of enhanced efficacy and reduced side effects 总被引：1，自引：0，他引：1
Johansson AM Gardner SY Levine JF Papich MG LaFevers DH Fuquay LR Reagan VH Atkins CE 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(6):887-895
Continuous rate infusion (CRI) of furosemide in humans is considered superior to intermittent administration (IA). This study examined whether furosemide CRI, compared with IA, would increase diuretic efficacy with decreased fluid and electrolyte fluctuations and activation of the renin-angiotensin-aldosterone system (RAAS) in the horse. Five mares were used in a crossover-design study. During a 24-hour period, each horse received a total of 3 mg/kg furosemide by either CRI (0.12 mg/kg/h preceded by a loading dose of 0.12 mg/kg IV) or IA (1 mg/kg IV q8h). There was not a statistically significant difference in urine volume over 24 hours between methods; however, urine volume was significantly greater after CRI compared with IA during the first 8 hours ([median 25th percentile, 75th percentile]: 9.6 L [8.9, 14.4] for CRI versus 5.9 L [5.3, 6.0] for IA). CRI produced a more uniform urine flow, decreased fluctuations in plasma volume, and suppressed renal concentrating ability throughout the infusion period. Potassium, Ca, and Cl excretion was greater during CRI than IA (1,133 mmol [1.110, 1,229] versus 764 mmol [709, 904], 102.7 mmol [96.0, 117.2] versus 73.3 mmol [65.0, 73.5], and 1,776 mmol [1,657, 2.378] versus 1,596 mmol [1,457, 1,767], respectively). Elimination half-lives of furosemide were 1.35 and 0.47 hours for CRI and IA, respectively. The area under the excretion rate curve was 1,285.7 and 184.2 mL x mg/mL for CRI and IA, respectively. Furosemide CRI (0.12 mg/kg/h) for 8 hours, preceded by a loading dose (0.12 mg/kg), is recommended when profound diuresis is needed acutely in horses. 相似文献
17.
Waruiru RM Thamsborg SM Nansen P Kyvsgaard NC Bogh HO Munyua WK Gathuma JM 《Tropical animal health and production》2001,33(3):173-187
The epidemiology of H. placei and of other gastrointestinal nematodes in yearling dairy cattle was examined on two farms in Kiambu District, central Kenya during each of 13 one-month periods from April 1993 to April 1994. On each farm, 32 newly weaned dairy calves were given a single dose of albendazole and then placed on experimental pastures. Twelve of the animals were designated for bi-monthly slaughter (n = 2) and analysis of worm population characteristics and 20 were designated for blood and faecal collection and for weighing. Two parasite-free tracer calves were grazed alongside the weaner calves each month throughout the study period and were also slaughtered for analysis of worm populations. Faecal egg counts, haematological and serum pepsinogen determinations, herbage larval counts, and animal live weight changes were recorded monthly. The study revealed that Haemonchus placei, Trichostrongylus axei, Cooperia spp. and Oesophagostomum radiatum were responsible for parasitic gastroenteritis and that H. placei was the predominant nematode present in the young cattle on both farms. Faecal egg counts from resident cattle and necropsy worm counts revealed that pasture larval levels were directly related to the amount of rainfall. The total worm burdens in the animals were highest during the rainy season (March–June and October–December) and lowest during the dry seasons (July–September and January–February). The very low recovery of immature larvae of H. placei from the tracer calves indicated that arrested development is not a feature of the life cycle of this parasite in central Kenya. The maintenance of the parasite population depended on continuous cycling of infection between the host and the pasture. The agroclimatic conditions of the study area were such that, in general, favourable weather conditions for the development and survival of the free-living stages of gastrointestinal nematodes existed all year round. 相似文献
18.
The occurrence of ectoparasites in sheep flocks is frequently reported but seldom quantified. Sheep production used to be a predominantly family activity in the state of Sa~o Paulo (Brazil), but it began to become a commercial activity in the past decade. Thus, information about the ectoparasites existing in sheep flocks has become necessary. The present data were obtained by means of questionnaires sent to all sheep breeders belonging to the `Associaça~o Paulista de Criadores de Ovinos' (ASPACO; Sa~o Paulo State Association of Sheep Breeders). Response reliability was tested by means of random visits paid to 10.6% of the respondents. Most of the properties (89.5%) reported the presence of one or more ectoparasites. Screw-worm (Cochliomyia hominivorax) was the most frequent ectoparasite (72.5%), followed by bot fly larvae (Dermatobia hominis, 45.0%), ticks (Amblyomma cajennense) and Boophilus microplus, 31.3%) and finally lice (Damalinia ovis, 13.8%). Combined infestations also occurred, the most common one being screw-worm with bot fly larvae (36.0%) followed by bot fly larvae with ticks (13.9%), screw-worm with ticks (9.3%), bot fly larvae with lice (6.9%), and ticks with lice (5.0%). The most common triple combination was screw-worm, bot fly larvae and ticks (12.8%). Breeds raised for meat or wool were attacked by bot fly larvae and ticks more often than other breeds. Lice were only absent from animals of indigenous breeds. The relationships among these ectoparasites are discussed in terms of sheep breeds, flock size, seasonality and the ectoparasitic combinations on the host. 相似文献
19.
Troxel MT Vite CH Van Winkle TJ Newton AL Tiches D Dayrell-Hart B Kapatkin AS Shofer FS Steinberg SA 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2003,17(6):850-859
The purpose of this study was to determine the frequency of different tumor types within a large cohort of cats with intracranial neoplasia and to attempt to correlate signalment, tumor size and location, and survival time for each tumor. Medical records of 160 cats with confirmed intracranial neoplasia evaluated between 1985 and 2001 were reviewed. Parameters evaluated included age, sex, breed, FeLV/FIV status, clinical signs, duration of signs, number of tumors, tumor location(s), imaging results, treatment, survival times, and histopathologic diagnosis. Most of the cats were older (11.3 +/- 3.8 years). Primary tumors accounted for 70.6% of cases. Metastasis and direct extension of secondary tumors accounted for only 5.6 and 3.8% of cases, respectively. Twelve cats (7.5%) had 2 or more discrete tumors of the same type, whereas 16 cats (10.0%) had 2 different types of intracranial tumors. The most common tumor types were meningioma (n = 93, 58.1%), lymphoma (n = 23, 14.4%), pituitary tumors (n = 14, 8.8%), and gliomas (n = 12, 7.5%). The most common neurological signs were altered consciousness (n = 42, 26.2%), circling (n = 36, 22.5%), and seizures (n = 36, 22.5%). Cats without specific neurological signs were common (n = 34, 21.2%). The tumor was considered an incidental finding in 30 (18.8%) cats. In addition to expected relationships (eg, meninges and meningioma, pituitary and pituitary tumors), we found that lesion location was predictive of tumor type with diffuse cerebral or brainstem involvement predictive of lymphoma and third ventricle involvement predictive of meningioma. 相似文献