Animal Science Journal最新文献_第4页

Serum Amyloid A and Lactoferrin Concentrations in Milk at Mastitis Diagnosis Can Serve as a Predictive Indicators of Intramammary Status 7 Days Later. 乳腺炎诊断时血清淀粉样蛋白A和乳铁蛋白浓度可作为7天后乳内状态的预测指标。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70170

Keiichi Hisaeda, Naomi Ohta, Naoki Yamamoto, Akira Goto, Yoichi Inoue, Yasunori Shinozuka, Naoki Suzuki, Naoki Isobe

{"title":"Serum Amyloid A and Lactoferrin Concentrations in Milk at Mastitis Diagnosis Can Serve as a Predictive Indicators of Intramammary Status 7 Days Later.","authors":"Keiichi Hisaeda, Naomi Ohta, Naoki Yamamoto, Akira Goto, Yoichi Inoue, Yasunori Shinozuka, Naoki Suzuki, Naoki Isobe","doi":"10.1111/asj.70170","DOIUrl":"10.1111/asj.70170","url":null,"abstract":"This study investigated whether the inflammatory component levels in bovine milk measured on the day of mastitis diagnosis were associated with recovery outcomes 7 days later. Milk was collected on Day 0 (the initial day of mastitis diagnosis) and Day 7 from 40 quarters of 32 dairy cows diagnosed with spontaneous acute mastitis. The pH, somatic cell count (SCC), and concentrations of serum amyloid A (SAA), interleukin-8, lactoferrin (LF), and sodium in milk were measured on Day 0 to evaluate their association with SCC on Day 7. A positive correlation was identified between SCC on Day 7 and SAA, LF, and Na levels on Day 0. For receiver operating characteristic analysis, a log10SCC > 4.8 (70,000 cells/mL) on Day 7 was considered indicative of mastitis. The cutoff values for SAA and LF on Day 0 were 21.6 and 81 μg/mL, respectively, with sensitivities of 79.3% and 86.2%, specificities of 77.8% and 66.7%, and areas under the curve of 0.784 and 0.762, respectively. These results indicate that measuring SAA and LF concentrations in milk at the initial mastitis diagnosis may predict intramammary conditions 7 days later, potentially aiding in understanding the pathology of mastitis and informing treatment strategies.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70170"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12989315/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147462585","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}

引用次数: 0

Influence of Dietary Undegraded Crude Protein on Intake, Nitrogen Partitioning, and Apparent Organic Matter Digestibility in Alpacas. 饲粮未降解粗蛋白质对羊驼采食量、氮分配和表观有机物消化率的影响

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70176

Jefone Caleb Alvarez Martinez, Carla Sofía Zaga Alarcón, Jose Luis Contreras Paco, Juan Elmer Moscoso-Muñoz, Juan Olazabal-Loaiza, Giovanna Janet Gómez-Oquendo, Khaterine Cinthia Salazar-Cubillas

{"title":"Influence of Dietary Undegraded Crude Protein on Intake, Nitrogen Partitioning, and Apparent Organic Matter Digestibility in Alpacas.","authors":"Jefone Caleb Alvarez Martinez, Carla Sofía Zaga Alarcón, Jose Luis Contreras Paco, Juan Elmer Moscoso-Muñoz, Juan Olazabal-Loaiza, Giovanna Janet Gómez-Oquendo, Khaterine Cinthia Salazar-Cubillas","doi":"10.1111/asj.70176","DOIUrl":"10.1111/asj.70176","url":null,"abstract":"The present study evaluated the influence of three dietary levels of undegraded crude protein in the fermentative compartment (UDCP) on intake, fecal and urinary excretion, nitrogen partitioning, and apparent organic matter digestibility in alpacas. Eight male alpacas were assigned to low (14% crude protein), medium (24% crude protein), and high (34% crude protein) UDCP treatments in an incomplete and unbalanced 3-period crossover design using isoproteic and isoenergetic diets. No differences were observed among treatments in dry matter intake, organic matter intake, fecal excretion of dry matter, organic matter, and nitrogen; nitrogen retention; or apparent organic matter digestibility. In contrast, water intake, nitrogen intake, urinary nitrogen excretion, nitrogen absorbed, and nitrogen efficiency ratios were influenced by UDCP treatment. The high UDCP treatment was characterized by lower urinary nitrogen losses and a higher proportion of retained nitrogen relative to absorbed nitrogen compared with the low UDCP treatment, despite similar nitrogen intake. Conversely, the low UDCP treatment promoted higher nitrogen absorption but was associated with greater urinary nitrogen excretion and a lower retention-to-absorption ratio. Overall, these results indicate that increasing the dietary contribution of UDCP reduces post-absorptive nitrogen losses in alpacas, thereby improving nitrogen utilization efficiency relative to low UDCP diets.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70176"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13069264/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147653623","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}

引用次数: 0

Prediction of Lactoferrin Concentrations in Mature Milk From Japanese Holstein Cows Using Milk Infrared Spectral Data and Its Practical Applicability. 利用牛奶红外光谱数据预测日本荷斯坦奶牛成熟乳中乳铁蛋白浓度及其实用性

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70230

Yugo Mineshima, Yuri Satake, Tao Zhuang, Toshimi Baba, Gaku Yoshida, Haruki Kitazawa, Hitoshi Shirakawa, Masayuki Takeda, Satoshi Haga, Hisashi Aso, Yoshinobu Uemoto

{"title":"Prediction of Lactoferrin Concentrations in Mature Milk From Japanese Holstein Cows Using Milk Infrared Spectral Data and Its Practical Applicability.","authors":"Yugo Mineshima, Yuri Satake, Tao Zhuang, Toshimi Baba, Gaku Yoshida, Haruki Kitazawa, Hitoshi Shirakawa, Masayuki Takeda, Satoshi Haga, Hisashi Aso, Yoshinobu Uemoto","doi":"10.1111/asj.70230","DOIUrl":"10.1111/asj.70230","url":null,"abstract":"Lactoferrin is an important bioactive protein in milk associated with immune function in mammary glands. However, cost-effective measurement of lactoferrin concentration in mature milk remains challenging, thus highlighting the potential of Fourier transform infrared (FTIR) spectroscopy as a predictive tool. To practically implement FTIR-predicted lactoferrin concentrations, understanding both the methodological factors affecting prediction accuracy and the biological relevance of the predicted values is important. Therefore, this study aimed to identify the factors affecting the predictive accuracy of lactoferrin concentration in mature milk from Japanese Holstein cows using FTIR spectral data and evaluate the practical applicability of the predicted values. A total of 1624 milk samples were analyzed. Prediction models were developed using different spectral derivative preprocessing methods, spectral wavenumber ranges, and regression models. Predictive accuracies were generally comparable among the regression models, with Bayesian regularized neural network regression achieving the highest coefficient of determination (R2 = 0.57) under nonderivative preprocessing and spectral regions associated with milk quality traits. Environmental effects on the predicted lactoferrin concentrations showed patterns similar to those observed for the measured values, which suggests their potential applicability for herd-level monitoring. These results indicate the promising potential of FTIR spectral information to predict lactoferrin concentration in mature milk.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70230"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13441487/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148676943","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}

引用次数: 0

Genetic Architecture of Semen Production Traits in Duroc Boars Accounting for X-Chromosome and Non-Additive Genetic Effects. 考虑x染色体和非加性遗传效应的杜洛克公猪产精性状遗传结构

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70248

Youngjae Choi, Keiichi Suzuki, Akira Yobuko, Shigetoshi Terui, Ikufumi Yoshii, Masayuki Takeda, Yoshinobu Uemoto

{"title":"Genetic Architecture of Semen Production Traits in Duroc Boars Accounting for X-Chromosome and Non-Additive Genetic Effects.","authors":"Youngjae Choi, Keiichi Suzuki, Akira Yobuko, Shigetoshi Terui, Ikufumi Yoshii, Masayuki Takeda, Yoshinobu Uemoto","doi":"10.1111/asj.70248","DOIUrl":"https://doi.org/10.1111/asj.70248","url":null,"abstract":"Semen production traits are key indicators of reproductive performance in pigs. Their genetic architecture, particularly the contribution of the X-chromosome and non-additive genetic effects, remains poorly understood. We investigated contributions of the X-chromosome and non-additive genetic effects to semen production traits in Duroc boars using genetic parameter estimation and genome-wide association studies (GWAS). Overall, 13,788 records from 502 Duroc boars genotyped with high-density single-nucleotide polymorphism (SNP) arrays were analyzed for semen volume (VOL), sperm number (NUM), sperm concentration (CON), and the proportion of morphologically abnormal sperm (PAS). Genetic parameters were estimated using pedigree- and SNP-based repeatability animal models. A GWAS was performed using 40,197 SNPs on the autosomal chromosomes and 1521 on the X chromosome. The results of pedigree-based analyses indicated that permanent environmental effects substantially contributed to repeatability. The SNP-based analyses revealed that epistatic effects accounted for a large proportion of the variance in NUM and PAS, whereas their contributions were limited for VOL and CON. The X-chromosome effects explained little phenotypic variance across all traits. No significant loci were detected in the GWAS using additive models; no substantial X-linked associations were identified. A significantly associated SNP with NUM on chromosome 1 (rs80957931) was identified in the non-additive model.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70248"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149103140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Integrated Feeding of Tithonia diversifolia, Katuk Leaves and Palm Kernel Meal-Based Concentrate on Feed Intake, Digestibility, and Milk Production of Sapera Goats Lactation. 混饲牛蒡叶和棕榈仁粕精料对育奶山羊采食量、消化率和产奶量的影响

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70244

Arief Arief, Roni Pazla, Rizqan Rizqan, Eli Ratni

{"title":"Effects of Integrated Feeding of Tithonia diversifolia, Katuk Leaves and Palm Kernel Meal-Based Concentrate on Feed Intake, Digestibility, and Milk Production of Sapera Goats Lactation.","authors":"Arief Arief, Roni Pazla, Rizqan Rizqan, Eli Ratni","doi":"10.1111/asj.70244","DOIUrl":"10.1111/asj.70244","url":null,"abstract":"This study aimed to determine the effects of a mixture of tithonia (Tithonia diversifolia) forage, palm kernel meal-based concentrate, and katuk leaves (Sauropus androgynus) on nutrient digestibility, feed intake, milk production, and the composition of milk in first-lactation Sapera dairy goats. The experiment was conducted using a completely randomized design with four treatments: A (control; commercial forage and commercial concentrate), B (60% tithonia + 20% commercial concentrate + 20% palm kernel meal-based concentrate), C (B + 1.5% katuk leaves), and D (B + 3% katuk leaves). The addition of katuk leaves to the diet resulted in a significant (p < 0.05) increase in feed intake, protein digestibility, and milk yield by 18% compared with the control group. The fat, protein, and total milk solids content also increased by 9%, 12%, and 7%, respectively. The combination of tithonia and katuk leaves in this tropical feed system improved nutrient utilization efficiency and the quality of Sapera goat milk production in a sustainable manner.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70244"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148987710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transplantation Results of Bovine Embryos Produced by a Two-Step Culture Method. 两步培养法产生的牛胚胎移植结果。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70247

Shunpei Oguma, Hiroshi Tajimi, Ryotaro Miura, Erina Sasaki, Ayaka Ishii, Konosuke Okada, Kenji Furui, Hitoshi Ushijima

引用次数: 0

Prediction of Enteric Methane-Related Traits From Body Weight and Milk Composition Traits, Including Ratios of De Novo, Mixed, and Preformed Fatty Acids in Holstein Cows. 从体重和乳成分性状（包括新生脂肪酸、混合脂肪酸和预形成脂肪酸比例）预测荷斯坦奶牛肠道甲烷相关性状

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70219

Ryoki Tatebayashi, Akiko Nishiura, Fuminori Terada, Tomohisa Tomaru, Taketo Obitsu, Yoshinobu Uemoto, Tomoyuki Suzuki, Itoko Nonaka, Yuriko Saito, Osamu Sasaki

{"title":"Prediction of Enteric Methane-Related Traits From Body Weight and Milk Composition Traits, Including Ratios of De Novo, Mixed, and Preformed Fatty Acids in Holstein Cows.","authors":"Ryoki Tatebayashi, Akiko Nishiura, Fuminori Terada, Tomohisa Tomaru, Taketo Obitsu, Yoshinobu Uemoto, Tomoyuki Suzuki, Itoko Nonaka, Yuriko Saito, Osamu Sasaki","doi":"10.1111/asj.70219","DOIUrl":"10.1111/asj.70219","url":null,"abstract":"The aim of this study was to develop prediction equations for methane-related traits in Holstein cows using body weight (BW) and milk composition traits, including the proportions of de novo (DEN), mixed (MIX), and preformed (PRF) fatty acids in milk fat. A total of 358 measurements from 92 Holstein cows were used in regression analyses for methane emission (CH4, L/day), methane conversion factor (MCF), and the CH4:CO2 ratio. Independent variables included BW, energy-corrected milk (ECM), milk yield, milk protein percentage (PRO), milk fat percentage, lactose percentage, protein-to-fat ratio (PFR), DEN, MIX, and PRF. Four well-fitted equations were developed for CH4 and MCF. The best fitted equation was as follows: CH4 = -78.58 + 0.5632 × BW + 8.273 × ECM + 17.75 × PRO - 181.7 × PFR + 6.151 × DEN - 2.225 × MIX. When BW was excluded from the CH4 equation, prediction bias was observed across parities and lactation stages. This bias was reduced by developing parity-specific equations. These equations show moderate accuracy in validation. These findings demonstrate that methane-related traits can be effectively predicted using routinely collected animal and milk composition data, offering the potential for improved methane monitoring and mitigation strategies in dairy production.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70219"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13352104/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148417937","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}

引用次数: 0

Relationship Between Thermal Environment and Welfare Indicators of Laying Hens: A Canonical Correlation Approach. 热环境与蛋鸡福利指标的典型相关分析

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70171

Carolina de Oliveira Marques de Souza, Silvana Cavalcante Bastos Leite, Maria Rogervânia Silva de Farias, Angela Maria de Vasconcelos, Luiz Paulo Fávero, Aérica Cirqueira Nazareno, Laura Bertolaso de Vecchi, Robson Mateus Freitas Silveira

{"title":"Relationship Between Thermal Environment and Welfare Indicators of Laying Hens: A Canonical Correlation Approach.","authors":"Carolina de Oliveira Marques de Souza, Silvana Cavalcante Bastos Leite, Maria Rogervânia Silva de Farias, Angela Maria de Vasconcelos, Luiz Paulo Fávero, Aérica Cirqueira Nazareno, Laura Bertolaso de Vecchi, Robson Mateus Freitas Silveira","doi":"10.1111/asj.70171","DOIUrl":"10.1111/asj.70171","url":null,"abstract":"Adaptation of laying hens to heat stress involves variables and multiple mechanisms, which are complex and interconnected by linear responses and interactions. Here, we compare the Pearson correlation method and canonical correlation to evaluate relationships between thermoregulatory, behavioral, and productive responses and thermal environment variables in laying hens reared in a semi-arid region of Brazil. A total of 270 lightweight Hy-Line White laying hens, 58 weeks old, with body weight of 1.60 ± 0.092 kg and egg production of 77.30% ± 3.62% were used. Simple Pearson correlation analysis showed fewer significant relationships than those identified by canonical correlation analysis. The results showed low to moderate canonical correlations (0.2576 ≤ rc ≤ 0.7449) between sets of indicators. Relationships between the thermal environment, thermoregulatory responses, and productive responses were significant (p ≤ 0.05), with the pair thermoregulatory responses × thermal environment presenting the highest correlation (rc = 0.7449; rc2 = 0.5548). Canonical correlation analysis is recommended to assess the behavior of complex relationships in laying hens. This multivariate approach provides a comprehensive understanding of linear and interactive relationships and captures interactions between climatic variables and thermoregulatory, behavioral, and productive responses.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70171"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12984014/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147442190","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}

引用次数: 0

Prediction Equations of Growth Performance and Metabolizable Energy From in Vitro Digestible Energy Determined With a Computer-Controlled Simulated Digestion System in Feed for Chickens. 计算机控制模拟消化系统测定鸡饲料中体外消化能的生长性能和代谢能预测方程

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70224

Guoyi Niu, Yujing Zhang, Tingrui Zhang, Liangyu Yang, Bin Xiang, Linli Tao

{"title":"Prediction Equations of Growth Performance and Metabolizable Energy From in Vitro Digestible Energy Determined With a Computer-Controlled Simulated Digestion System in Feed for Chickens.","authors":"Guoyi Niu, Yujing Zhang, Tingrui Zhang, Liangyu Yang, Bin Xiang, Linli Tao","doi":"10.1111/asj.70224","DOIUrl":"10.1111/asj.70224","url":null,"abstract":"Two experiments were conducted to establish the prediction equations of growth performance and apparent metabolizable energy (AME) on chemical composition and enzymatic hydrolysate gross energy (EHGE) of corn, soybean meal (SBM), corn gluten meal (CGM), and wheat bran (WB) in chickens. Experiment 1 established the prediction equations of EHGE of four ingredients on chemical composition. In experiment 2, prediction equations of growth performance and AME based on EHGE of diets in chickens was developed. The variation was high for ether extract (EE) and crude protein (CP) of corn (6.78, 9.56) and WB (15.42, 10.41). The coefficient of variation of EE was higher than those of other ingredients in SBM and CGM. Two, seven, and eight equations for predicting the EHGE of corn, CGM, and WB based on dry matter (DM), GE, CP, and EE were established, respectively. However, statistical analysis showed that prediction equations of SBM were not significant. The prediction equations of ADFI, F/G and AME on EHGE of diets were ADFI = -2.143 * EHGEd + 54.066 (R2 = 0.955), F/G = -0.256 * EHGEd + 5.935 (R2 = 0.954), AME = 0.719 * EHGEd + 3.547 (R2 = 0.937), respectively. These results indicated that chemical compositions and the EHGE of corn, CGM, and WB could predict the growth performance and AME for chickens.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70224"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13390588/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148547772","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}

引用次数: 0

Meteorological Dependencies in Ducks: Influence of Weather on Sex Ratio Bias and Hatchability. 鸭的气象依赖性：天气对性别比偏差和孵化率的影响。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70205

Valeriy G Narushin, Michael N Romanov, Sabine Klein, Attila Salamon, Gianluca Manzoni, Darren K Griffin, John P Kent

{"title":"Meteorological Dependencies in Ducks: Influence of Weather on Sex Ratio Bias and Hatchability.","authors":"Valeriy G Narushin, Michael N Romanov, Sabine Klein, Attila Salamon, Gianluca Manzoni, Darren K Griffin, John P Kent","doi":"10.1111/asj.70205","DOIUrl":"10.1111/asj.70205","url":null,"abstract":"The feasibility of altering the sex ratio of hatching ducklings artificially can be an important economic factor in reducing production costs. As a preliminary investigation, associations between seasonal and weather factors and the secondary sex ratio in domestic ducks were examined to establish mechanisms that may determine the sex ratio of offspring. Over several years, a predominance of male hatchlings was observed, with an average bias of 51%-52%. There was no significant relationship found between the sex ratio shift and a particular meteorological season. A greater robustness was achieved by separately considering the time cycles of growth and decline in oviposition. Examining weather factors, i.e., average temperature, wind speed, and sea level pressure, we found significant relationships between these parameters and the sex ratio of hatching ducklings during periods of increasing egg production of their mothers. Wind force had the greatest influence on hatchability, to a greater extent during periods of decline in egg production. The decrease in hatchability of the duck flock was associated with increased wind speed. Our findings are crucial for further experimental evaluation of the sex ratio under controlled ambient temperature and wind strength.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70205"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13292844/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148306573","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}

引用次数: 0