Veterinary Medicine and Science最新文献

{"title":"Training With an Evaluation Framework: Outcomes From a Biosecurity Training Intervention in Commercial Poultry Farms in Tamil Nadu, South India.","authors":"Alagarsamy Alagesan, Ganesh Janarthanan, Arumugam Balakrishnan, Paramasivam Vigneshwaran, Vasudevan Gowthaman, Papaiyan Kumaravel, Fiona Tomley, Ayona Silva Fletcher, Thippichettipalayam Ramasamy Gopala Krishna Murthy, Samuel Masilamoni Ronald","doi":"10.1002/vms3.70385","DOIUrl":"https://doi.org/10.1002/vms3.70385","url":null,"abstract":"<p><p>The study aimed to investigate the assessment of farm profiles, knowledge gain, and adoption behaviours of biosecurity practices following a training intervention in commercial poultry farms in Tamil Nadu. A total of 89 farmers from commercial desi (32), layer (30), and broiler (27) farms participated in the training program. The biosecurity assessment used an evaluation framework with a two-day training program. Participants completed pre- and post-training surveys to measure knowledge gained during the training. Additionally, we conducted a follow-up evaluation of adoption behaviours after 90 days of training intervention. Questionnaire data were analysed using paired sample t-test, chi-square, and regression analysis. Results revealed that 89% of the trainees were male, 90% were in the age group between 21 and 60 years, and 88% had a secondary education level or higher. Further, 56.2% of farmers had 5-20 years of experience in poultry farming, and 46.1% of farmers revealed that the significant source of income is from poultry farming and agricultural practices. A pre- and post-survey data comparison showed that all the farmers had significant knowledge gain (p < 0.01) in all the categories of structural and operational biosecurity practices immediately after the training. The farmer's educational qualification significantly influences the knowledge gain except for dead bird disposal (p < 0.05). Commercial desi and layer farmers have more pre-existing knowledge compared to broiler farmers. The broiler farmers showed the highest knowledge gain compared to layer and commercial desi farmers. Still, there was no significant difference between knowledge gain among different types of poultry farmers (p > 0.05). The adoption behaviour measured after 90 days significantly increased in all categories (p < 0.05) except for rodent and pest control. This comprehensive study provided valuable insights regarding farmers' existing knowledge and the impact of training on some behavioural changes to improve biosecurity. The study concluded that a tailored training program is essential to educate small-scale producers about biosecurity measures to prevent poultry food-borne diseases.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70385"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12051024/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144036739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Investigation of the Correlation Between ELISA and Serum Amyloid A in the Diagnosis of Bordetella bronchiseptica in Dogs.","authors":"Kadir Akar, Gökçenur Sanioğlu Gölen, İsmail Hakkı Ekin","doi":"10.1002/vms3.70323","DOIUrl":"https://doi.org/10.1002/vms3.70323","url":null,"abstract":"<p><strong>Background: </strong>Bordetella bronchiseptica is an essential bacterial pathogen characterized by chronic respiratory disease in dogs known as Kennel cough. The presence of causative antibodies in animals can also be detected by lipopolysaccharide antigen-based enzyme linked immunosorbent assay (ELISA). In recent years, it has been determined that there is a significant relationship between acute phase proteins and diseases, and disease follow-up can be done within the framework of this relationship.</p><p><strong>Methods: </strong>In this study, blood sera from 150 dogs in an animal shelter in Van province were evaluated for B. bronchiseptica by the homemade ELISA method, and their correlations with serum amyloid A (SAA) were investigated. Blood serum samples were analysed for antibodies against B. bronchiseptica using a homemade ELISA method. Positive animals were also molecularly confirmed using nasal swabs by PCR. A commercial ELISA kit determined SAA levels in blood sera.</p><p><strong>Results: </strong>Eighteen (12%) of the analysed blood serum samples were found positive by the homemade ELISA method. SAA concentrations in the positive blood sera were elevated from 12.7 to ≤38.98 mg/L. SAA concentrations in blood sera serologically positive for B. bronchiseptica were statistically significant.</p><p><strong>Conclusions: </strong>In this study, in which the relationship between SAA concentration and B. bronchiseptica was investigated for the first time in Turkey, it was concluded that SAA concentration analysis may help diagnose and monitor the disease. In addition, the presence and prevalence of this critical and zoonotic agent causing chronic respiratory tract disease in dogs in Van province was revealed for the first time in this study.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70323"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11986845/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144014755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Isolation of Leptospira licerasiae, Leptospira interrogans and Leptospira kmetyi From Apparently Healthy Companion Dogs Vaccinated for Leptospirosis.","authors":"C D Gamage, J E Sykes, T P J Athapattu, P Senerathne, U Karunadasa, M Fuward, T Herath, B D S Muthusinghe, K Yoshimatsu, N Koizumi","doi":"10.1002/vms3.70375","DOIUrl":"https://doi.org/10.1002/vms3.70375","url":null,"abstract":"<p><p>Animal reservoir hosts that shed pathogenic leptospires represent a considerable public health risk because they lack clinical signs of illness that might prompt handling precautions. In Sri Lanka, dog ownership is widespread. Dogs reside within homes and interact closely with humans, but they also roam freely in surrounding neighbourhoods. Dogs that carry pathogenic leptospires represent a source of environmental contamination and infection of domestic and livestock animals, posing a greater public health issue. The objectives of this study were to isolate and molecularly characterise leptospires from the blood and urine of 20 apparently healthy companion dogs vaccinated for leptospirosis using a 2-serovar vaccine in Kandy, Sri Lanka. Urine and blood samples were subjected to culture for leptospires in an EMJH medium. Growth of pathogenic/intermediate-pathogenic leptospires was confirmed using nested PCR assays targeting the flaB gene of P1 and P2 Leptospira subclades. Three (15%) of 20 urine specimens and one (5%) of 20 blood cultures yielded leptospires. Phylogenetic analysis revealed L. interrogans and L. kmetyi (P1 subclade) in urine specimens and L. licerasiae (P2 subclade) in the blood. Thus, despite vaccination, dogs in Sri Lanka can shed viable pathogenic/intermediate-pathogenic leptospires, with associated public health implications.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70375"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044410/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144040849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Effect of Astragalus mollissimus on Ruminal Fermentation, Methane Production and Performance of Sheep.","authors":"Jagoba Rey-Gotxi, L Yuviana Martínez-Cordova, Aser García, Robin C Anderson, Felipe A Rodríguez-Almeida, Monserrath Felix-Portillo, Aleksandar K Božić, Martha M Arevalos-Sánchez, Adrián O Máynez-Pérez, Einar Vargas Bello-Pérez, America Chávez-Martínez, Alberto Muro-Reyes, Agustin Corral-Luna","doi":"10.1002/vms3.70389","DOIUrl":"https://doi.org/10.1002/vms3.70389","url":null,"abstract":"<p><p>Recent studies have shown the anti-methanogenic capacity of Astragalus mollissimus (AM), a plant found in semiarid environments, which is known to produce 3-nitro-1-propionic acid (3NPA) and 3-nitropropanol (3NPOH). However, little is known about the effects of direct supplementation in basal diets, given that it is also known to cause cattle poisoning by nitro toxins in rangelands. In the present study, two experiments were carried out to determine CH₄ and volatile fatty acid production, animal performance and the presence of nitrocompounds in blood. In Experiment 1, four Pelibuey sheep (BW 52.8 ± 6.05 kg) were assigned to a 4 × 4 Latin square arrangement. In Experiment 2, 20 Dorper sheep were randomized to five treatments. In both experiments, AM was supplemented and fully homogenized into diets consisting of 67% oat hay and 33% concentrate. The supplementation with different amounts of AM reduces (p ≤ 0.05) the total gas and methane production. Methane was reduced by 60% when 1 g AM kg^-1 BW day^-1 was supplemented. No effects (p > 0.05) were observed in feed consumption and average daily gain. However, feed conversion was increased (p < 0.05) with AM supplementation. Finally, no differences (p > 0.05) were observed in nitrocompound concentration in plasma. These results demonstrate that 3NPA and 3NPOH from biological sources possess desirable anti-methanogenic properties to be considered supplementation alternatives.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70389"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044408/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144052265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Foetal Mummification in Pregnant Dairy Cows Induces Variant Changes on the Hormonal Profile, Biochemical Parameters and Mineral Profile of the Dam.","authors":"Yahia A Amin, Obeid Shanab, Ibrahim S Zahran, Foad Farrag, Mariam A Fawy, Mustafa Shukry, Mohamed Abdelmegeid, Eman M Abu El-Naga, Ragab H Mohamed, Ahmed A Elolimy","doi":"10.1002/vms3.70304","DOIUrl":"https://doi.org/10.1002/vms3.70304","url":null,"abstract":"<p><strong>Background and aim: </strong>Foetal mummification does not cause loss by losing foetus only but the harm extends to the mother dam. This is the first study that investigates the changes that occur in the dam's body due to foetal mummification through a comprehensive investigation of the hormonal, biochemical, liver, kidney and mineral profiles of the dam. This study represents a model to investigate the pathogenesis of such clinically severe cases.</p><p><strong>Materials and methods: </strong>This study involved 40 cows with foetal mummification. The dams were divided into 2 groups (20 for each): Group 1 (cows carrying normal foetuses [CNF]) and Group 2 (cows carrying mummified foetuses [CMF]). Blood samples were collected for evaluation of hormonal profile, biochemical profile, kidney profile, liver profile and mineral profile.</p><p><strong>Results: </strong>Results showed that progesterone (P4) and oestradiol (E2) concentrations were not significantly changed in the CMF group compared to the CNF group, whereas total triiodothyronine (T3) and total thyroxin (T4) showed a significant reduction in mummified cases than in CNF group. In the CMF group, parameters such as glucose and albumin were significantly lower compared to the normal pregnant animals. In contrast, triglycerides, cholesterol, globulin and total protein (TP) were significantly higher. Kidney and liver profiles showed a significant increase in urea, aspartate aminotransferase (AST), alkaline phosphatase (ALP) and bilirubin, a significant decrease in alanine aminotransferase (ALT) and non-significant differences in creatinine and gamma-glutamyl transpeptidase (GGT) in CMF compared with normal pregnant cows. Mineral profiles showed a significant decrease in calcium and phosphorus, a significant increase in iron and potassium and a non-significant increase in magnesium, sodium and chloride in the mummified group compared to the normal pregnancy group.</p><p><strong>Conclusion: </strong>Cows with mummified foetuses (MF) maintained variant biological changes in the body. These findings can be used as an indicator for cow health and as a diagnostic tool to avoid pregnancy disorders that occur during the late pregnancy.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70304"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12023765/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144053344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"The Use of Protected Fat Supplement on Milk Production, Quality and Fatty Acid Profiles in Dairy Camels: Protected Fat Supplement of Dairy Camel.","authors":"Tahereh Mohammadabadi, Morteza Chaji, Somayeh Hoseini, Siamak Amin Davar","doi":"10.1002/vms3.70351","DOIUrl":"https://doi.org/10.1002/vms3.70351","url":null,"abstract":"<p><p>This experiment was conducted to investigate the effect of the protected fat supplement of unsaturated fatty acids in dairy camels. Twenty-eight Arab camels were fed with control diet and diets containing linolenic acid (omega-3). The obtained results were analysed as a completely randomized design. Milk production, fat, protein and the antioxidant activity of raw milk increased by using protected fat, but ash, solids and density decreased (p < 0.05). Fat, protein, density and the antioxidant activity of fermented milk of camels increased, but solids and lactose decreased (p < 0.05). The total microbial load and population of moulds in raw and fermented milk of camels fed with protected fat decreased (p < 0.05), but the population of Lactobacillus increased (p < 0.05). The concentration of unsaturated fatty acids C18:1, C18:2 and C18:3 and conjugated linoleic acid (CLA) increased (p < 0.05). Therefore, it may be possible to use omega-3 protected fat supplementation of 80 g per day in dairy camels feeding in the desert.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70351"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12012839/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144053346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Comprehensive Global Analysis of Future Trends in Artificial Intelligence-Assisted Veterinary Medicine.","authors":"Sadi Elasan, Osman Yilmaz","doi":"10.1002/vms3.70258","DOIUrl":"10.1002/vms3.70258","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;This study conducts a bibliometric analysis of global trends in 'artificial intelligence studies in veterinary medicine'. The analysis aims to summarise the publications of researchers from various disciplines related to artificial intelligence in veterinary medicine, thereby predicting future trends of AI in this field. The primary objective of the study is to investigate publications pertaining to artificial intelligence in veterinary medicine worldwide and to analyse trends and future developments in this area.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;This bibliometric study examines artificial intelligence research in veterinary medicine conducted worldwide from 1990 to 2024. To achieve this, a search using the keywords 'artificial intelligence' and 'veterinary medicine' was performed in the Web of Science (WOS) database, resulting in the identification of 1497 studies. After excluding irrelevant publications and those outside the scope of articles, a total of 1400 articles were included in the analysis. The data collection process utilised titles, author names, publication years, journal names, and citation counts. All textual data were analysed using VOSviewer software to ensure accuracy and reliability. In this study, analyses conducted through text mining and data visualisation techniques (e.g., bubble maps) facilitated a clearer understanding of the results.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;This study presents information about 1400 articles obtained from the WOS database and a total of 44,700 citations for these articles. The average number of citations per article is 32, with an H-index of 74. A rapid increase in both the number of articles and citations has been observed since 2019. The majority of the articles (30%) were published in the fields of veterinary sciences, artificial intelligence, and computer sciences. The United States, Taiwan and the United Kingdom are the leading countries, accounting for 84% of the published articles in this field. Additionally, 12% of the articles were published in the area of veterinary sciences, and 85% of the articles fall within the SCI-Expanded category.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;The findings of our study indicate that there are numerous active researchers in the field of artificial intelligence in veterinary medicine and that research in this area is steadily increasing. This bibliometric analysis highlights global trends and significant works in artificial intelligence within veterinary medicine, providing valuable insights into the future directions of research in this field. As the analysis aims solely to identify trends and patterns in the literature, it does not intend to evaluate the applicability of the subject matter.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Highlights: &lt;/strong&gt;Analysis of Global Trends: This study comprehensively analyses the global trends and effects of research on artificial intelligence in veterinary medicine. In this context, it contributes to the identifica","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70258"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11948670/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143721571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Anaplasma Phagocytophilum, a Zoonotic Vector-Borne Bacterial Species in Rodents and Its Associated Tick Vector: Systematic Review.","authors":"Maropeng C Monyama, Tsepo Ramatla, Bradly Khosa, Tshepo Mafokwane, Oriel Thekisoe","doi":"10.1002/vms3.70387","DOIUrl":"10.1002/vms3.70387","url":null,"abstract":"<p><strong>Background: </strong>The bacterium Anaplasma phagocytophilum, the causative agent of tick-borne fever, is alleged to be naturally maintained in a tick-rodent cycle, with human beings involved only as incidental impasse hosts. This study was undertaken to update scientific evidence on the occurrence of A. phagocyphilum in rodents and its associated tick species.</p><p><strong>Results: </strong>The systematic review was executed using the PRISMA guidelines to assess and compile the relevant literature. Published journal articles from 1 January 2000 to August 2023 were sourced from three electronic databases, including PubMed, ScienceDirect and Google Scholar, and after evaluation of the articles, ultimately 23 were eligible for this systematic review. Of the eligible studies, 43.5% did not report on the detection of A. phagocytophilum in tick species but only in rodents, whilst 26.1% of the studies, reported on negative detection of A. phagocytophilum in both rodents and ticks. In terms of rodents, there were 11 genera observed from the eligible studies with Apodemus spp. being the most frequently reported host, followed by Microtus spp. and Myodes spp. Ixodes ticks including I. ricinus and I. trianguliceps were the most frequent tick species investigated as arthropod carriers/vectors in the studies, followed by Dermacentor and Haemaphysalis tick species.</p><p><strong>Conclusions: </strong>This study has consolidated information from published articles on the role that rodents play as hosts or carriers of A. phagocytophilum and the possible role that related tick species play as vectors. Various tick species play a significant role as vectors of Anaplasma phagocytophilum and infect a wide array of rodent hosts that may possibly interact with humans.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70387"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12051846/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Prevalence and Species Identifications of Camel Ixodid Ticks in Habru District, North Wollo Zone, Northeast Ethiopia.","authors":"Tsedalu Yirsa, Yidersal Tizazu, Abebe Berihun, Asres Zegeye","doi":"10.1002/vms3.70338","DOIUrl":"10.1002/vms3.70338","url":null,"abstract":"<p><strong>Background: </strong>Ticks are among the most prevalent ectoparasites and carriers of important infectious diseases in animals and people worldwide, particularly in tropical and subtropical regions.</p><p><strong>Methods: </strong>A cross-sectional study from December 2023 to April 2024 sought to determine the incidence and species of camel ixodid ticks in the Habru district. Ticks were categorized into genera and species using morphological identification under a stereomicroscope.</p><p><strong>Findings: </strong>A total of 1008 ixodid ticks were collected from 384 randomly selected camels and identified to species level. The overall tick infestation rate was 55.21% in the study camels. Poor body condition and lack of deworming were significantly associated with higher mature tick infestations (p value <0.05). Nevertheless, there were no significant variations in prevalence among animals of different ages (p value >0.05). The most common tick species in this study was Hyalomma dromedarii (28.7%), followed by Amblyomma variegatum (23.02%) and Rhipicephalus pulchelis (21.63%). However, Amblyomma lepidium (4.2%) was the least common tick species. Except for Boophilus decolaratus, all tick species had male-predominant sex ratios. The maximum tick infection was identified beneath the animals' tails (30.06%), whereas the lowest infestation was found on the necks (4.46%). Ticks were commonly found across the study area, and animals were afflicted with various ticks.</p><p><strong>Conclusions: </strong>Generally, these ticks are well-known for generating enormous economic losses by transmitting various infectious diseases and disrupting animal health and output. Thus, efficient tick control methods should be adopted in the area.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70338"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11977651/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143812506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Estimation of Genetic Parameters for Six Economic Traits in Beijing Holstein Cows.","authors":"Yekai Fan, Jinxin Wang, Qiuling Li, Yufang Liu, Lv Qiao, Wanhai Shi, Yuze Yang, Wenping Hu, Mingxing Chu","doi":"10.1002/vms3.70340","DOIUrl":"https://doi.org/10.1002/vms3.70340","url":null,"abstract":"<p><strong>Background: </strong>Chinese Holstein is a dairy cattle breed developed through crossbreeding and long-term selection. The Beijing Holstein represents a distinct population within the Chinese Holstein breed, specifically bred in the Beijing region.</p><p><strong>Objectives: </strong>This study aimed to estimate the genetic parameters for six economic traits in Beijing Holstein cows.</p><p><strong>Methods: </strong>Data from 5409 Beijing Holstein cows across 13 dairy farms were analysed by MTDFREML and SAS software. The linear univariate and bivariate animal model analyses were employed to estimate heritabilities and genetic correlations, respectively.</p><p><strong>Results: </strong>Heritabilities of milk yield in 305 days (d), fat percentage, protein percentage, somatic cell score (SCS), lactose percentage and dry matter percentage were 0.08, 0.17, 0.20, 0.10, 0.16 and 0.26, respectively. Most genetic correlations aligned in direction and magnitude with their phenotypic correlations. Notably, dry matter percentage exhibited strong positive genetic correlations with fat percentage (0.96), protein percentage (0.74) and lactose percentage (0.70). The genetic correlations were moderately significant negative between dry matter percentage and milk yield in 305 d (-0.39), between SCS and dry matter percentage (-0.26), between SCS and lactose percentage (-0.30), and between SCS and fat percentage (-0.38).</p><p><strong>Conclusions: </strong>On the basis of the genetic parameters and their economic significance, the milk yield in 305 d, fat percentage, protein percentage and SCS would be selected as breeding goal traits with different direction and extent of weight. A balanced breeding approach targeting these traits is essential to enhance overall production performance. This study provides foundational data for evaluating the production potential of Beijing Holstein cows and supports informed breeding decisions.</p>","PeriodicalId":23543,"journal":{"name":"Veterinary Medicine and Science","volume":"11 3","pages":"e70340"},"PeriodicalIF":1.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038746/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144062202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}