Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere最新文献

{"title":"[Uroperitoneum in a heifer].","authors":"Corinna K Lausch, Annette Lorch","doi":"10.1055/a-2329-5778","DOIUrl":"10.1055/a-2329-5778","url":null,"abstract":"<p><p>Uroperitoneum is a rarely documented finding in heifers. More frequently uroperitoneum is described in male youngstock suffering from obstructive urolithiasis, or abscesses of the urachus. This report describes a case of uroperitoneum most likely as a result of a traumatic rupture of the urinary bladder in an 8.5 months old heifer. The animal was presented with a severely dilated abdomen and an undulating wave was evident upon palpation. The heifer exhibited physiologic urination. Additionally, left displacement of the abomasum was evident. In consequence to findings of the ultrasonographic examination and abdominocentesis, diagnostic laparotomy was performed. Urine was evacuated from the abdominal cavity in fractions and the damaged cranial pole of the urinary bladder was excised followed by the suture of the urinary bladder. The abomasum was replaced in its physiologic position and an omentopexy was performed. The heifer was discharged from hospital and was still in the herd 5 years after discharge.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 3","pages":"164-170"},"PeriodicalIF":0.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141459413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Relationship between body condition of dairy cows in the peripartum period and selected metabolic parameters in consideration of different breeds].","authors":"Nicola Carina Panne, Julia Sophia Gerke, Martin Kammer, Stefan Plattner, Sarah Unger, Christian Baumgartner, Rolf Mansfeld","doi":"10.1055/a-2276-1161","DOIUrl":"https://doi.org/10.1055/a-2276-1161","url":null,"abstract":"<p><strong>Objective: </strong>The results of this study describe the relationship between the body condition of dairy cows and selected metabolic parameters during the peri- and post-partum period with special consideration of 3 local dairy cow breed in Upper Bavaria and the Allgau.</p><p><strong>Material and methods: </strong>Three local dairy cattle breeds (Swiss Brown (BV), Simmental (FL), Holstein Friesian (HF)) were examined on 68 farms in southern Germany for 7 consecutive weeks. In dry cows as well as lactating cows (5.-65. day in milk), following blood parameters were investigated: beta-hydroxybutyrate (BHB), non-esterified fatty acids (NEFA), creatinine, aspartate aminotransferase, gamma-glutamyltransferase, glutamate dehydrogenase, total protein, albumin, creatine kinase. In addition, body condition (body condition score [BCS] and back fat thickness [BFT]) were recorded. Exploratory and descriptive statistics were used for data analysis.</p><p><strong>Results: </strong>Concerning the difference in condition before and after calving, the FL showed the smallest difference in RFD. For FL and BV a trend towards higher BFT values could be seen in first lactating cows. For FL and HF, the NEFA values of the later lactating cows were below those of the first lactating cows. The higher lactating cows of BV and FL had higher BHB values. The correlation between BFT and BCS showed the highest R2 (0.53) in the HF cows. BV and FL were below at 0.42 and 0.37. BCS and BFT could not be predicted by the variables NEFA, BHB and liver enzymes. BHB levels of all 3 breeds increased at weeks 2-4 post-partum. The NEFA values for all 3 breeds increased primarily in the 1st-3rd week p.p. in parallel to when the BFT p.p. decreased. NEFA values were highest when body condition declined and therefore when fat mobilization peaked. In BV and HF, there was a constant increase in GLDH when the p.p. BCS difference was there.</p><p><strong>Conclusion and clinical relevance: </strong>Body condition assessment (BCS at herd and animals` level, BFT at animal level) is an important tool for animal health monitoring. Due to the recognizable breed specificity, the dairy herds can be dealt with more explicitly. The aim is to optimally influence the energy balance of the cow during early lactation in order maintain the health of the animal and its organ systems.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 3","pages":"137-154"},"PeriodicalIF":0.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141459474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Choanal atresia in an alpaca cria (Vicugna pacos)].","authors":"Saskia Neubert, Matthias Gerhard Wagener, Thies Jesper Nicolaisen, Alexandra von Altrock, Johannes Buchallik-Schregel, Manon Mikic, Danae Christofides, Peter Wohlsein, Martin Ganter","doi":"10.1055/a-2324-1208","DOIUrl":"10.1055/a-2324-1208","url":null,"abstract":"<p><p>After birth, an alpaca cria was noticed to exhibit weakness and respiratory distress, particularly when attempting to suckle milk from the dam's udder. Clinical findings indicated the presence of bilateral choanal atresia and the animal was subsequently euthanised. A computed tomography scan and a pathological examination were performed to describe the malformation in detail. Choanal atresia is a common malformation in neonatal South American camelids, surgical treatment is not recommended. This case report provides an overview of the clinical findings as well as the results of imaging and pathologic examinations and may help to raise awareness of this malformation for early recognition.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 3","pages":"158-163"},"PeriodicalIF":0.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141459472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Comparison of different methods for monitoring of acid base status in dairy cow herds].","authors":"Tanja Gärtner, Petra Reinhold, Karsten Donat","doi":"10.1055/a-2317-1359","DOIUrl":"https://doi.org/10.1055/a-2317-1359","url":null,"abstract":"<p><strong>Object and purpose: </strong>Acid-base disorders in dairy herds can be diagnosed by determining urinary net base excretion (NBE). Modifications of this method are the differential NBE (dNBE) with determination of the urinary concentration-independent base-acid ratio (BAR) and the simplified NBE test with reduced urine volume (sNBE). The aim of this study was to compare these methods among themselves and as a pooled test, in their assessment of cow group acid base status as well as to derive recommendations for practical use.</p><p><strong>Animals, material, and methods: </strong>The concentrations of NBE, dNBE, and sNBE were measured in urine samples derived from 855 German-Holstein cows in 127 cow groups at different stages of lactation. BAR was then calculated. dNBE and BAR were determined both individually per cow and as a pool of a group. Mixed linear models were used to examine the relationship between the mean of the individual animal values and the pool sample result of a group for these two parameters. In addition, all groups were evaluated with respect to acidotic or alkalotic load based on their single animal results of the respective methods, the mean values formed from them, and the measured pool result. By using the single animal BAR as reference, the sensitivity and specificity of the different methods were calculated.</p><p><strong>Results: </strong>The calculated mean values of the individual measurements of dNBE and BAR differed from the measured value in the pool sample, especially in low and high measurement ranges. In the group assessment, NBE showed the best combined sensitivity and specificity for the detection of acid base disorders. The dNBE pool assay showed satisfactory specificity with respect to acidosis and alkalosis, while the sNBE on an individual animal basis and the BAR determination in the pool showed satisfactory sensitivity with respect to acidosis.</p><p><strong>Conclusions and clinical relevance: </strong>It was shown that NBE determined in individual animal samples is well suited for the assessment of acid base status of cow groups and can therefore be recommended for practical use. The determination of dNBE as well as BAR as a pool test is not sufficient for the detection of alkalotic load in cow groups but may help to confirm an existing acidotic load.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 3","pages":"125-136"},"PeriodicalIF":0.4,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141459473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Successful surgical excision of a melanoma and a rare peripheral nerve sheath tumor in 2 cattle].","authors":"Marie-Theres Schrenk, Christoph Wenzel, Kathrin Jäger","doi":"10.1055/a-2283-9614","DOIUrl":"10.1055/a-2283-9614","url":null,"abstract":"<p><p>A heifer and a dairy cow were presented to our practice with cutaneous masses on the left side of their necks. Each mass had a diameter of approximately 20 cm. Both tumors had increased in size in recent weeks and were now prone to injuries from the stable equipment. Both animal owners agreed to surgical removal, which was performed under sedation and local anesthesia on a bovine treatment crush. The subsequent histopathological examinations of the extirpates revealed a melanocytoma in the young heifer and a cutaneous peripheral nerve sheath tumor (PNST) in the dairy cow. Both cases were benign tumors. The postoperative course was without complications and no recurrences were observed even more than a year later. No comparable tumors were found in related animals or in the offspring.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 2","pages":"101-107"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140855216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adjunctive bevacizumab therapy in an equine corneal stromal invasive squamous cell carcinoma with a 53-months follow-up.","authors":"Klaas-Ole Blohm, Barbara Nell","doi":"10.1055/a-2253-8103","DOIUrl":"10.1055/a-2253-8103","url":null,"abstract":"<p><p>A 17-year-old Appaloosa mare was referred for evaluation of presumed refractory keratitis of the left eye. Gross examination revealed ocular discomfort and corneal neovascularization with a nasal focal opacification affecting approximately 40% of the corneal surface. On ophthalmic examination, extensive subepithelial to mid-stromal vascular branching accompanied by a homogeneous white, dense opacification, which affected up to 80% of the total corneal thickness, were apparent. Signs of concurrent uveitis were absent. Deep-stromal lamellar keratectomy with a conjunctival pedicle graft was performed under general anesthesia. Histopathology confirmed a poorly differentiated corneal stromal invasive squamous cell carcinoma (SI-SCC) with neoplastic cell extension to the surgical margins. Postoperatively, 4 topical mitomycin C 0.04% chemotherapy cycles combined with oral firocoxib therapy were initiated. Seven months after surgery, regrowth of the SI-SCC was clinically suspected. A total volume of 1 ml bevacizumab 2.5% was administered in the standing sedated horse via 3 mid-stromal corneal injections. Four weeks later, intrastromal bevacizumab injections (ISBIs) were repeated, however, this time the solution was injected directly into the main corneal vessel branches.Seven weeks after the second ISBIs, the left eye was comfortable and significant remission of corneal vascularization and opacity was recognized. No recurrence has been noted for a follow-up period of more than 53 months.Equine SI-SCC usually has a very poor prognosis for globe maintenance. To the authors' knowledge this is the first report of well-tolerated intrastromal antivascular endothelial growth factor adjunctive therapy with bevazicumab 2.5% and SI-SCC resolution after a multimodal treatment approach.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 2","pages":"108-114"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11068419/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140870024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Homemade herbal remedies - tradition with practical relevance].","authors":"Theresa Schlittenlacher, Gabriela Knubben-Schweizer, Ariane Maeschli, Michael Walkenhorst","doi":"10.1055/a-2280-5937","DOIUrl":"https://doi.org/10.1055/a-2280-5937","url":null,"abstract":"<p><strong>Objective: </strong>The preparation of homemade herbal remedies has always been practiced by animal keepers and is still employed in farm animals today. In order to document this practice, an ethnoveterinary study was conducted in Bavaria in 2018-2021.</p><p><strong>Material and method: </strong>The farmers were interviewed on site and the reported recipes were documented in detail and, where possible, also carried out during the interviews. The plant parts used were weighed using a laboratory balance in order to be able to calculate a daily dose per animal or the concentration in the end product for as many of these traditional use reports (UR) as possible.</p><p><strong>Results: </strong>A total of 716 recipes for 884 UR were named in the 77 interviews by the participating farmers. Two thirds (69%) of the formulations mentioned consisted of one or more medicinal plants and 31% dealt with other natural home remedies (honey, vinegar, etc.). Overall, the farmers surveyed preferred the use of single plants in their formulations. Most UR were for cattle (77% of all reports). These traditional remedies are most often used in Bavarian stables for the treatment and prophylaxis of gastrointestinal diseases and metabolic disorders. Furthermore, there was a high correspondence of the medicinal plants used with described UR from two historical reference books. The study participants used their homemade herbal remedies with a high degree of satisfaction and thereby act within the scope of their own responsibility as farmers.</p><p><strong>Conclusion and clinical relevance: </strong>This traditional knowledge of herbal preparations containing active ingredients, which has been passed on for generations, may also be a good starting point for a phytotherapeutic supplement in the treatment of farm animals in veterinary practice. Pharmaceutical and feed law framework conditions must be adhered to.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 2","pages":"79-87"},"PeriodicalIF":0.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140870096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Investigations of a controlled, decision tree based procedure for Selective Dry Cow Treatment in Bavarian dairy farms].","authors":"Tanja Sonnewald-Daum, Katharina Euchner, Laetitia Frost, Tim Pauly, Carla Fuchs, Bianca Zettler, Rebekka Schade, Reglindis Huber-Schlenstedt, Jan Harms, André Klima, Rolf Mansfeld","doi":"10.1055/a-2272-3195","DOIUrl":"https://doi.org/10.1055/a-2272-3195","url":null,"abstract":"<p><strong>Objective: </strong>Four parameters of a decision tree for Selective Dry Cow Treatment (SDCT), examined in a previous study, were analyzed regarding their efficacy in detecting cows for dry cow treatment (DCT, use of intramammary antimicrobials). This study set out to review wether all parameters (somatic cell count [SCC≥ 200 000 SC/ml 3 months' milk yield recordings prior dry off (DO)], clinical mastitis history during lactation [≥1 CM], culturing [14d prior DO, detection of major pathogens] and California-Mastitis-Test [CMT, > rate 1/+ at DO]) are necessary for accurate decision making, whether there are possible alternatives to replace culturing, and whether a simplified model could replace the decision tree.</p><p><strong>Material and methods: </strong>Records of 18 Bavarian dairy farms from June 2015 to August 2017 were processed. Data analysis was carried out by means of descriptive statistics, as well as employing a binary cost sensitive classification tree and logit-models. For statistical analyses the outcomes of the full 4-parameter decision tree were taken as ground truth.</p><p><strong>Results: </strong>848 drying off procedures in 739 dairy cows (C_DO) were included. SCC and CMT selected 88.1%, in combination with CM 95.6% of the cows that received DCT (n=494). Without culturing, 22 (4.4%) with major pathogens (8x <i>Staphylococcus</i> [<i>S.</i>] <i>aureus</i>) infected C_DO would have been misclassified as not needing DCT. The average of geometric mean SCC (within 100 d prior DO) for C_DO with negative results in culturing was<100 000 SC/ml milk, 100 000-150 000 SC/ml for C_DO infected with minor pathogens, and ≥ 150 000 SC/ml for C_DO infected with major pathogens (excluding <i>S.aureus</i>). Using SCC during lactation (at least 1x > 200 000 SC/ml) and positive CMT to select C_DO for DCT, contrary to the decision tree, 37 C_DO (4.4%) would have been treated \"incorrectly without\" and 43 C_DO (5.1%) \"unnecessarily with\" DCT. Modifications were identified, such as SCC<131 000 SC/ml within 100 d prior to DO for detecting C_DO with no growth or minor pathogens in culturing. The best model for grading C_DO for or against DCT (C_DO without CM and SCC<200 000 SC/ml [last 3 months prior DO]) had metrics of AUC=0.74, Accuracy=0.778, balanced Accuracy=0.63, Sensitivity=0.92 and Specificity=0.33.</p><p><strong>Conclusions: </strong>Combining the decision tree's parameters SCC, CMT and CM renders suitable selection criteria under the conditions of this study. When omitting culturing, lower thresholds for SCC should be considered for each farm individually to select C_DO for DCT. Nonetheless, the most accurate model could not replace the full decision tree.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 2","pages":"65-78"},"PeriodicalIF":0.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140860481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Individual hormonal profiles of blood progesterone and estradiol-17β during the course of a reproductive cycle in mares].","authors":"Sara Laufkötter, Lina Längerer, Axel Wehrend","doi":"10.1055/a-2276-5226","DOIUrl":"https://doi.org/10.1055/a-2276-5226","url":null,"abstract":"<p><strong>Object and aim: </strong>This study presents the individual course of estradiol-17ß and progesterone concentrations in blood during the reproductive cycle in mares in order to point out physiological differences between individual animals and to aid in the interpretation of hormone values.</p><p><strong>Material and methods: </strong>Concentrations of estradiol-17ß and progesterone were determined in seven mares over the course of their cycle. One mare was excluded from the study due to a physiologically deviating cycle. In addition, the mares' ovaries were examined via ultrasound on a daily basis in order to match the hormone values to morphological changes of the ovaries.</p><p><strong>Results: </strong>In some cases, the mares showed considerable individual differences in their hormone concentrations, which also differed from the published comparative values in the literature. For example, two mares showed progesterone levels above basal levels at the time of ovulation. The postovulatory progesterone concentrations of the mares are characterized by marked fluctuations, which makes it difficult to provide reference values in the different sections of the corpus luteum phase. The length of the plateau phases averaged 12.3±1.5 days. The mare with double ovulation showed the highest progesterone concentrations.</p><p><strong>Conclusion: </strong>The measurement of plasma progesterone levels in mares should be interpreted only in the context of other test results. The very wide variation in estradiol-17ß concentrations makes it questionable whether the determination of this hormone value is of diagnostic value.</p><p><strong>Clinical relevance: </strong>When interpreting steroid hormone values in the ingravid cycle of a mare, the individual concentration courses must be taken into consideration, as they may deviate significantly from the published reference values.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 2","pages":"88-95"},"PeriodicalIF":0.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140858053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[New drugs for horses and production animals in 2023].","authors":"Ilka Ute Emmerich","doi":"10.1055/a-2291-7062","DOIUrl":"10.1055/a-2291-7062","url":null,"abstract":"<p><p>In 2023, no new active pharmaceutical ingredients were released on the German market for horses and food-producing animals. Two established veterinary active pharmaceutical ingredients became available for additional species: The phosphorus compound butafosfan was also approved for horses, dogs, and cats and the mineral sodium chloride as an isotonic sodium chloride solution was also approved for rabbits and guinea pigs. In addition, for small animals, there were new releases of an agent (pergolidmesilate) in a novel pharmaceutical formulation and a lower content of the active ingredient, one drug (fluralaner) in a smaller package size as well as one drug (oxalic acid dehydrate) with a new route of administration. Furthermore, one combination of active ingredients (diprophylline+heptaminol) is available on the market for horses and food producing animals again.</p>","PeriodicalId":23115,"journal":{"name":"Tieraerztliche Praxis Ausgabe Grosstiere Nutztiere","volume":"52 2","pages":"96-100"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140864922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}