Animals最新文献

{"title":"Age Structure of Water Frogs of the Genus <i>Pelophylax</i> in the Middle Volga River Region (European Russia).","authors":"Renat Zamaletdinov, Anton Svinin, Alexander Fayzulin, Oleg Ermakov, Regina Mikhaylova, Spartak Litvinchuk","doi":"10.3390/ani15091273","DOIUrl":"10.3390/ani15091273","url":null,"abstract":"<p><p>An analysis of the age structure of three water frog species (<i>P</i>. <i>lessonae</i>, <i>P</i>. <i>ridibundus</i>, <i>P</i>. <i>esculentus</i>) in the Middle Volga region of Russia was conducted. The skeletochronological method determined their maximum lifespans to be 7, 6, and 4 years, respectively. This study revealed specific characteristics of the age structure of <i>Pelophylax</i> frogs in relation to their taxonomic composition when cohabiting (population system type) and the degree of habitat transformation. Differences in body size and lifespan were observed among cryptic forms exhibiting mitochondrial DNA replacement and the presence of various types of heterozygous and homozygous alleles. Water frogs of the genus <i>Pelophylax</i> have a complex taxonomic structure, including hybrid species and morphologically cryptic forms, as well as massive mitochondrial DNA introgression. The aim of our paper was to analyze the age structure of three species of water frogs (<i>P. lessonae</i>, <i>P. ridibundus</i>, and <i>P. esculentus</i>) in the Middle Volga River region (European Russia). Based on the skeletochronological method, we determined their maximum lifespans of seven, six, and four years, respectively. The onset of sexual maturity in the marsh frogs occurred after two and four winterings in males and females (respectively), in the pond frog-one to two years, and in the edible frog-one to three years. This study revealed specific characteristics of the age structure of <i>Pelophylax</i> frogs in relation to their taxonomic composition when cohabiting (population system type) and the degree of habitat transformation. Differences in body size and lifespan were observed among cryptic forms exhibiting mitochondrial DNA replacement and the presence of various types of heterozygous and homozygous alleles.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070855/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143974289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Lipopolysaccharide (LPS) on Oxidative Stress and Apoptosis in Immune Tissues from <i>Schizothorax prenanti</i>.","authors":"Jiqin Huang, Wei Jiang, Hongying Ma, Han Zhang, Hu Zhao, Qijun Wang, Jianlu Zhang","doi":"10.3390/ani15091298","DOIUrl":"10.3390/ani15091298","url":null,"abstract":"<p><p><i>Schizothorax prenanti</i> is an economically important cold-water fish in China. Lipopolysaccharide (LPS) can induce an immune response in <i>S. prenanti</i>; however, little is known about the effects of LPS on oxidative stress (OS) and apoptosis in <i>S. prenanti</i>. In this study, <i>S. prenanti</i> fish were stimulated with LPS at a dose of 10 mg/kg of body weight. After 0 h, 12 h and 24 h, the tissue samples were collected. The OS- and apoptosis-related genes and enzymatic activities in the liver, head kidney (HK), and spleen of <i>S. prenanti</i> were analyzed by a two-way repeated-measures analysis of variance (ANOVA). Hematoxylin and eosin and terminal transferase uridyl nick end labeling staining were also performed. In <i>S. prenanti</i>, LPS administration downregulated the <i>catalase (CAT)</i> and <i>B-cell lymphoma/Leukemia-2</i> (<i>Bcl-2</i>) expression levels, and upregulated <i>BCL2</i>-<i>associated X</i> (<i>Bax</i>) and <i>cysteine-aspartic-specific protease-3</i> (<i>caspase-3</i>) expression levels. Meanwhile, superoxide dismutase and <i>CAT</i> enzymatic activities were inhibited and malondialdehyde (MDA) content was increased by LPS treatment. Additionally, LPS treatment induced OS damage and apoptosis in tissue sections. These results indicated that apoptosis in the liver, HK, and spleen of LPS-administered <i>S. prenanti</i> may be mediated by OS via the mitochondrial apoptotic signaling pathway. Our findings are expected to contribute to a better understanding of the responses of different tissues to bacterial challenges. In addition, we can increase the tolerance of fish to the OS through dietary manipulation in the future.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070837/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144061913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Effects of Herbal Supplementation on Growth Performance of Kenguri Sheep Exposed to Heat Stress.","authors":"Ebenezer Binuni Rebez, Chinnasamy Devaraj, Jacob Ninan, Mullakkalparambil Velayudhan Silpa, Shanmugam Venkatesa Perumal, Artabandhu Sahoo, Frank Rowland Dunshea, Veerasamy Sejian","doi":"10.3390/ani15091285","DOIUrl":"10.3390/ani15091285","url":null,"abstract":"<p><p>A study was designed to explore the possibility of using herbal supplementation to sustain growth performance during heat stress exposure in Kenguri sheep. This 60-day study was conducted on 24 Kenguri ewes (1-2 years old), randomly assigned to four treatment groups (<i>n</i> = 6 per group) as follows: KC (<i>n</i> = 6; Kenguri Control), KHS (<i>n</i> = 6; Kenguri Heat Stress), KCS (<i>n</i> = 6; Kenguri Control and herbal supplement), and KHSS (<i>n</i> = 6; Kenguri Heat Stress and herbal supplement). The herbal mixture of Ocimum sanctum (Tulsi), Emblica officinalis (Amla), Morinda citrifolia (Noni), Withania somnifera (Ashwagandha), and Phyllostachys edulis (Bamboo) was used in this study. The herbal supplement used in the present study was given to the KCS and KHSS groups' animals in dry powder form at a dose of 0.8 g/Kg BW/Day. All variables were recorded fortnightly, and gene expression analysis was performed at the end of the experiment. The results indicated that the recorded temperature-humidity index (THI) provided thermal comfort for KC and KCS while inducing extremely severe heat stress to the KHS and KHSS groups. Heat stress did not alter the feed intake, while the herbal supplement during heat stress increased the feed intake from day 30 onwards. Furthermore, heat stress significantly (<i>p</i> < 0.001) increased the water intake, while the herbal supplement did not alter the heat stress-induced water intake. In addition, neither heat stress nor herbal supplements influenced the body weight and allometric measurements studied. Furthermore, heat stress significantly (<i>p</i> < 0.01) decreased the level of plasma tri-iodo-thyronine (T₃) and thyroxin (T₄) and had a non-significant effect on plasma growth hormone (GH), insulin-like growth factor-1 (IGF-1), while the herbal supplements significantly (<i>p</i> < 0.01) increased the levels of all these hormones studied. Likewise, in peripheral blood mononuclear cells (PBMCs) the expression patterns of <i>growth hormone receptor (GHR), Insulin-like growth factor 1 (IGF1)</i> and <i>prolactin receptor</i> (<i>PRLR)</i> were significantly (<i>p</i> < 0.001) downregulated during heat stress (0.25, 0.3, and 0.48-fold change, respectively). However, the herbal supplement significantly (<i>p</i> < 0.01) increased the heat stress-induced reduction in the expression pattern of these three genes (0.65, 0.61, and 0.61-fold change, respectively). Therefore, from this study, it could be concluded that although the herbal supplements did not bring positive changes in body weight and allometric measurements, it still had a beneficial impact on the endocrinology and genes governing growth performance in Kenguri ewes. Thus, the herbal feed additive used in the study shows promise for relieving heat stress in Kenguri ewes.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12071093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143962760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Whole-Genome Sequencing Reveals the Role of Cis-Regulatory Elements and eQTL/sQTL in the Adaptive Selection of Hubei Indigenous Cattle.","authors":"Liangyu Shi, Pu Zhang, Bo Yu, Qing Liu, Chenhui Liu, Wei Lu, Lei Cheng, Hongbo Chen","doi":"10.3390/ani15091301","DOIUrl":"10.3390/ani15091301","url":null,"abstract":"<p><p>Hubei indigenous cattle have adapted to diverse environmental conditions, exhibiting unique genetic traits associated with both economic and adaptive characteristics. Understanding their adaptive selection offers insight into their evolutionary history and genetic enhancements. In this study, we analyzed whole-genome sequencing (WGS) data from five Hubei indigenous cattle breeds to identify selection signals. Selective sweep analysis revealed the candidate genes (<i>USH2A</i>, <i>TMTC2</i>, <i>ABCC12</i>, and <i>SUGT1</i>) associated with sensory perception, backfat thickness, reproduction, and immune function. The further integration of cis-regulatory elements (CREs) and expression quantitative trait loci (eQTL) highlighted regulatory variants, influencing adaptive traits. Notably, positively selected genes such as <i>RPS6KA2</i>, <i>CRLS1</i>, <i>MGST3</i>, <i>GPCPD1</i>, and <i>LDLRAP1</i> were associated with lipid metabolism, meat quality, and reproductive traits, influencing aldehyde volatile organic compounds (VOCs) and fat deposition. These findings highlight the understanding of the genetic basis of adaptation and production traits in Hubei indigenous cattle and provide valuable insights for their conservation and potential breeding strategies.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12071175/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Unusual Mass Mortality of Atlantic Puffins (<i>Fratercula arctica</i>) in the Canary Islands Associated with Adverse Weather Events.","authors":"Cristian M Suárez-Santana, Lucía Marrero-Ponce, Óscar Quesada-Canales, Ana Colom-Rivero, Román Pino-Vera, Miguel A Cabrera-Pérez, Jordi Miquel, Ayose Melián-Melián, Pilar Foronda, Candela Rivero-Herrera, Lucía Caballero-Hernández, Alicia Velázquez-Wallraf, Antonio Fernandez","doi":"10.3390/ani15091281","DOIUrl":"10.3390/ani15091281","url":null,"abstract":"<p><p>The Atlantic puffin (<i>Fratercula arctica</i>) is a seabird species characterized by great diving capabilities and transoceanic migratory behavior. These movements contribute to the dispersion of the species during migration, and episodes of mortality associated with migration may be a normal event in the dynamic of the Atlantic puffin populations. This study aimed to describe the anatomopathological findings of an unusual mortality event of Atlantic puffins observed during the non-breeding period along the coast of the Canary Islands. The most consistent gross finding during necropsy was generalized muscle atrophy and fat depletion. The main histological findings were centered in the urinary tract, with dilation and inflammation of the primary ureter branch and medullary cones, and intraluminal trematodes identified as <i>Renicola sloanei</i> based on morphology and molecular analysis. Influenza virus infection was ruled out. The postmortem investigations performed in this mortality event of Atlantic puffins indicate that the animals were severely emaciated and suffered from nephropathy. The etiopathological investigation performed in relation to this mortality event of Atlantic puffins indicates starvation associated with bad weather conditions during migratory movement as the most likely cause of the unusual mortality event.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070898/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"AI and Data Analytics in the Dairy Farms: A Scoping Review.","authors":"Osvaldo Palma, Lluis M Plà-Aragonés, Alejandro Mac Cawley, Víctor M Albornoz","doi":"10.3390/ani15091291","DOIUrl":"10.3390/ani15091291","url":null,"abstract":"<p><p>The strong growth of the world population will cause a major increase in demand for bovine milk, making it necessary to use various technologies to increase milk production efficiently. Some technologies that can contribute to solving part of this problem are those related to data analytics tools, big data, and sensor development. It is timely to review modern technologies and data analytics methods for milk predictions in view of supporting decision-making in dairy farms. To this end, a scoping review was carried out, which resulted in 151 articles of interest. Among the most important results, we found that (i) the identified studies are relatively recent with an average publication time of 5.95 years; (ii) the scope of the selected studies is mostly concentrated on milk and prediction (29%), early detection of lameness (26%), and timely detection of mastitis (13%); (iii) the type of analysis is mostly predictive (87%), and prescriptive is barely present (3%); (iv) the types of input data used in the studies are preferably historical (70%), and real-time data (25%) are used less frequently; (v) we found that the method of artificial neural networks (47%) and the convolutional neural networks (24%) are the most used for the studies regarding bovine milk output predictions. In the selected studies, the artificial neural network methods have considerable accuracy, recall, precision, and F1 Scores on average but with high ranges and standard deviations. (vi) Simulation tools are scarcely used, being present in 4% of cases. In the treatment of variability, the models reviewed are mostly deterministic (77%), and the stochastic models (5%) are considered in a small number of cases. Based on our analysis, we conclude that future research on decision-making tools will benefit from the advantages of artificial neural networks in data analytics combined with optimization-simulation methods.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12071016/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143961818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Amino Acids as Dietary Additives for Enhancing Fish Welfare in Aquaculture.","authors":"Natalia Salamanca, Marcelino Herrera, Elena de la Roca","doi":"10.3390/ani15091293","DOIUrl":"10.3390/ani15091293","url":null,"abstract":"<p><p>The interest in fish welfare within aquaculture facilities has significantly increased over the past decade, recognizing the fundamental role of animal welfare in the quality of aquaculture products. It has been shown that stress in fish can affect their health, causing pathologies and immune failures, while stress-free fish grow faster and healthier. This has prompted aquaculture farmers to adopt strategies that reduce stress, improve water quality, and optimize stocking densities, thereby enhancing fish welfare. A key area is the role of amino acids in improving fish welfare. Amino acids, such as histidine, isoleucine, leucine, and tryptophan, are essential for various physiological processes, including neurotransmitter formation, energy metabolism, and immune function. Amino acids like tryptophan, arginine, and methionine play a crucial role in mitigating the effects of stress, improving immune function, and reducing oxidative stress. In the present review, the main roles of those amino acids related to fish stress have been shown, analyzing the physiological pathways involved in the link between amino acid ingestion and metabolization and stress responses.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070871/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143967586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Influence of Body Weight at the End of the Brooding Period on the Productive Performance in Hyline Brown Laying Hens from 6 to 72 Weeks of Age.","authors":"Jian Lu, Qiang Wang, Meng Ma, Yongfeng Li, Wei Guo, Xin Zhang, Xiaodong Yang, Liang Qu","doi":"10.3390/ani15091292","DOIUrl":"10.3390/ani15091292","url":null,"abstract":"<p><p>This research aimed to assess body weight (BW) at the end of the brooding period in affecting Hyline Brown laying hens aged 6 to 72 wks from the aspects of growth performance, egg quality, sexual maturity, and productive performance. Pullets (6 wk old, <i>n</i> = 640) were sorted into two groups according to BW: normal (460.75 ± 10.82 g) and light (347.96 ± 6.27 g, 75.52% of normal weight), with eight replicates of 40 pullets each. All the hens, when reaching 6-72 wks in age, took the same diets by stages ad libitum. The heavier BW in the normal weight group (NWG) at 6 wks of age compared to lighter weight group (LWG) birds continued until 22 wks (<i>p</i> < 0.05). Similarly, a smaller coefficient of variation (CV) for BW of chicks in the LWG was detected at 19 (<i>p</i> < 0.01), 20 (<i>p</i> < 0.01), and 21 (<i>p</i> < 0.05) wks of age compared with that in the NWG. The body slope length and the shank circumference of pullets in the LWG were smaller than in the NWG at the age of 15 wks (<i>p</i> < 0.01), but the difference gradually disappeared by 20 wks of age (<i>p ></i> 0.05). The LWG presented raised ages of hens when producing the first egg and 5% eggs (<i>p</i> < 0.01), while the CV for the age at first egg decreased, compared with the CV in the NWG (<i>p</i> < 0.05). The total egg number (<i>p</i> < 0.05), laying rate (<i>p</i> < 0.05), and egg mass (<i>p</i> < 0.01) of laying hens in the LWG decreased at the age of 18-72 wks, and the CV for individual egg numbers (<i>p</i> < 0.05) increased compared with the CV in the NWG. Compared with the normal weight hens, the proportion of lighter weight hens laying more than 250 eggs at the age of 18-72 wks was significantly reduced (<i>p</i> < 0.05, 69.52% vs. 87.38%), while the proportion of hens laying less than 200 eggs was significantly increased (<i>p</i> < 0.05, 24.97% vs. 3.76%). In summary, BW by the end of the brooding period can be a good indicator reflecting individual differences among laying hens and may serve as an important phenotypic indicator for evaluating laying performance and early elimination of unqualified laying hens in layer production. Therefore, it is recommended that pullets weighing 25% or more below the normal flock weight at the end of the brooding period should be culled at this time.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12071066/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143974170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Unraveling Fish Community Diversity and Structure in the Yellow Sea: Evidence from Environmental DNA Metabarcoding and Bottom Trawling.","authors":"Jinyong Zhang, Xiaoyu Cui, Lin Lin, Yuan Liu, Jinqing Ye, Weiyue Zhang, Hongjun Li","doi":"10.3390/ani15091283","DOIUrl":"10.3390/ani15091283","url":null,"abstract":"<p><p>The use of environmental DNA (eDNA) metabarcoding to analyze fish species diversity across different aquatic ecosystems is well documented. Nonetheless, there is a gap in validating eDNA metabarcoding studies on the diversity and structure of fish communities in coastal ecosystems, particularly in comparing these findings with bottom trawl catch data. In this study, we employed eDNA metabarcoding to explore species composition and relative abundance in fish communities, taxonomic-level diversity variations, and the interplay between community structures and environmental factors in the Yellow Sea and compared these results with those obtained from bottom trawl catches. In addition, we compared the various methods used to estimate the distributions of taxonomic, phylogenetic, and functional diversity factors. We found that eDNA metabarcoding detected a greater number of species (86 vs. 41), genera (73 vs. 37), and families (42 vs. 25) than bottom trawl results at each sampling station. eDNA metabarcoding provided higher Shannon, Simpson, and Chao1 alpha diversity indices than the bottom trawl results. The PCoA results showed that eDNA metabarcoding samples could be more clearly separated at the sampling sites in the Zhuanghe (ZH) and Lianyungang (LYG) areas than bottom trawling samples. The RDA analysis indicated that temperature, along with NO3- and NH₄⁺ concentrations, were pivotal in shaping the geographical patterns of fish communities, as identified through eDNA metabarcoding, echoing findings from bottom trawling studies. Furthermore, our findings suggest that eDNA barcoding surpasses bottom trawling in detecting taxonomic and phylogenetic diversity, as well as in uncovering greater functional diversity at the local level. Conclusively, eDNA metabarcoding emerges as a valuable complement to bottom trawling, offering a multifaceted approach to biodiversity monitoring that not only boosts efficiency but also reduces environmental impact on coastal ecosystems.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070852/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143962530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Evaluating Pulmonary Arterial Pressure in Angus Yearling Bulls at High Elevation: Associations with Birth Traits and Growth Performance.","authors":"Kaylen Stearns, Hannah DelCurto-Wyffels, Sam Wyffels, Megan Van Emon, Noah G Davis, Taylre Sitz, Tim DelCurto","doi":"10.3390/ani15091302","DOIUrl":"10.3390/ani15091302","url":null,"abstract":"<p><p>The objectives of this study were to model the relationship between pulmonary arterial pressure (PAP) estimates and birth weight, gestation length, and growth traits of developing bulls. Pulmonary arterial pressure estimates were collected from Angus yearling bulls ranging in age from 12 to 18 months from a Montana-based Angus operation (>1600 m elevation, 5406 yearlings/18-month-old bulls from 2016-2023). Pulmonary arterial pressure was positively correlated with birth weight (<i>p</i> < 0.01) and gestation length (<i>p</i> < 0.01). No relationship was observed between bull PAP and weaning weight (<i>p</i> = 0.26). Pulmonary arterial pressure scores were negatively correlated with yearling weight (<i>p</i> = 0.04). Additionally, PAP estimates were negatively correlated with birth-to-weaning gains (<i>p</i> < 0.01) and weaning-to-yearling gains (<i>p</i> = 0.02). Lastly, PAP scores were negatively correlated with birth to yearling growth (<i>p</i> < 0.01). Sire lines influenced offspring PAP scores (<i>p</i> < 0.01), and dam-sire lines tended to have an effect on offspring PAP scores (<i>p</i> = 0.09). In summary, PAP scores were related to birth weight, gestation length, yearling weight, and growth from birth to yearling age. Our findings suggest that selection for higher growth should also emphasize selecting for lower PAP scores.</p>","PeriodicalId":7955,"journal":{"name":"Animals","volume":"15 9","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070972/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143965156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}