Pub Date : 2026-02-02DOI: 10.1007/s11250-025-04832-7
Brahian Camilo Tuberquia-López, María Juliana Loaiza-Escobar, Marcela Patricia Eraso-Cadena, Jorge Guillermo Noriega Márquez, Nathalia M Correa-Valencia
Castration is common in beef cattle for reproductive and management purposes, but it causes pain and stress, raising welfare concerns. The adoption of perioperative anesthesia and analgesia remains uneven in tropical low- and middle-income settings, where infrastructure, costs, and weak enforcement limit its application. This study aimed to evaluate the effects of different analgesic protocols on physiological stress markers and growth performance in beef calves raised under tropical conditions in Colombia. Forty-two intact Blanco Orejinegro (BON) calves were randomly assigned to three protocols: spermatic cord block with lidocaine plus tolfenamic acid (T1), low epidural anesthesia with lidocaine plus tolfenamic acid (T2), or tolfenamic acid alone (T3). All calves underwent closed surgical castration. Physiological and welfare indicators were assessed through pulse rate variability (PRV), hematological parameters, serum haptoglobin and cortisol concentrations, and infrared thermography (IRT) of the scrotal area at defined intervals, whereas growth performance was evaluated by average daily gain (ADG). Statistical analyses included ANOVA and nonparametric tests when assumptions were violated, with multiple comparisons corrected via Tukey's test or Dunn's test. No significant differences were found among the protocols for the PRV, hematological parameters, cortisol, haptoglobin, IRT, or ADG. In contrast, significant temporal effects were observed, with cortisol decreasing at 48 h, haptoglobin peaking at 48-72 h, and IRT values increasing between 24 and 48 h postcastration. These results indicate that the time after castration, rather than the analgesic protocol, was the primary driver of physiological responses.
{"title":"Analgesic interventions in surgically castrated beef calves: impacts on biomarkers, thermography, and growth performance under tropical conditions.","authors":"Brahian Camilo Tuberquia-López, María Juliana Loaiza-Escobar, Marcela Patricia Eraso-Cadena, Jorge Guillermo Noriega Márquez, Nathalia M Correa-Valencia","doi":"10.1007/s11250-025-04832-7","DOIUrl":"10.1007/s11250-025-04832-7","url":null,"abstract":"<p><p>Castration is common in beef cattle for reproductive and management purposes, but it causes pain and stress, raising welfare concerns. The adoption of perioperative anesthesia and analgesia remains uneven in tropical low- and middle-income settings, where infrastructure, costs, and weak enforcement limit its application. This study aimed to evaluate the effects of different analgesic protocols on physiological stress markers and growth performance in beef calves raised under tropical conditions in Colombia. Forty-two intact Blanco Orejinegro (BON) calves were randomly assigned to three protocols: spermatic cord block with lidocaine plus tolfenamic acid (T1), low epidural anesthesia with lidocaine plus tolfenamic acid (T2), or tolfenamic acid alone (T3). All calves underwent closed surgical castration. Physiological and welfare indicators were assessed through pulse rate variability (PRV), hematological parameters, serum haptoglobin and cortisol concentrations, and infrared thermography (IRT) of the scrotal area at defined intervals, whereas growth performance was evaluated by average daily gain (ADG). Statistical analyses included ANOVA and nonparametric tests when assumptions were violated, with multiple comparisons corrected via Tukey's test or Dunn's test. No significant differences were found among the protocols for the PRV, hematological parameters, cortisol, haptoglobin, IRT, or ADG. In contrast, significant temporal effects were observed, with cortisol decreasing at 48 h, haptoglobin peaking at 48-72 h, and IRT values increasing between 24 and 48 h postcastration. These results indicate that the time after castration, rather than the analgesic protocol, was the primary driver of physiological responses.</p>","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"85"},"PeriodicalIF":1.7,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12864252/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107328","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}
Pub Date : 2026-02-02DOI: 10.1007/s11250-026-04879-0
Denise C Sousa, Ieverton C C Silva, Carlos B V Rabello, Lilian F A Souza, Webert A Silva, Thaiza H T Fernandes, Ana P M Tenório, Valdemiro A S Júnior, Fabiano S Costa
{"title":"Prolonged production cycles in commercial laying hens and its bone repercussions.","authors":"Denise C Sousa, Ieverton C C Silva, Carlos B V Rabello, Lilian F A Souza, Webert A Silva, Thaiza H T Fernandes, Ana P M Tenório, Valdemiro A S Júnior, Fabiano S Costa","doi":"10.1007/s11250-026-04879-0","DOIUrl":"10.1007/s11250-026-04879-0","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"83"},"PeriodicalIF":1.7,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12864232/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107356","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}
Pub Date : 2026-02-02DOI: 10.1007/s11250-026-04870-9
Özge Kozaklı, Ayhan Ceyhan, Mevlüt Noyan
{"title":"Reply to the comment on: comparison of machine learning algorithms and multiple linear regression for live weight estimation of Akkaraman lambs.","authors":"Özge Kozaklı, Ayhan Ceyhan, Mevlüt Noyan","doi":"10.1007/s11250-026-04870-9","DOIUrl":"https://doi.org/10.1007/s11250-026-04870-9","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"79"},"PeriodicalIF":1.7,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107412","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}
Pub Date : 2026-02-02DOI: 10.1007/s11250-026-04863-8
Hanan A M Hassanien, Ayman Hassan, Mohammed E Gad, Noura Gouda, Hamza M Kamel, Nabila M El-Kassas, Mohamed A Radwan, Usama Nayel, Abdelfattah Z M Salem
{"title":"Silkworm (Bombyx mori L.) pupae meal supplementation: Effect on growth performance, carcass traits, meat quality, and economic efficiency in rabbits.","authors":"Hanan A M Hassanien, Ayman Hassan, Mohammed E Gad, Noura Gouda, Hamza M Kamel, Nabila M El-Kassas, Mohamed A Radwan, Usama Nayel, Abdelfattah Z M Salem","doi":"10.1007/s11250-026-04863-8","DOIUrl":"10.1007/s11250-026-04863-8","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"81"},"PeriodicalIF":1.7,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12864273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107358","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":"Molecular characterization of Indian contagious ecthyma (Orf) virus isolates by A32L gene and its encoded ATPase protein.","authors":"Sowmiya P V, Ramya Kalaivanan, Sukumar Kuppannan, Madheswaran Rajamanickam, Ponnusamy Periyasamy, Selvaraju Mani","doi":"10.1007/s11250-026-04881-6","DOIUrl":"https://doi.org/10.1007/s11250-026-04881-6","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"82"},"PeriodicalIF":1.7,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107273","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}
{"title":"Validation and design of a wearable harness for monitoring remote heart rate variability in dairy cows under grazing conditions.","authors":"Patricia Betancourth-Chaves, John Montoya-Zuluaga, Berardo Rodríguez, Andrés Timarán-Rivera, Lina Ríos-Peña, Filadelfo Hernández-Oviedo, Darío Vallejo-Timarán","doi":"10.1007/s11250-026-04859-4","DOIUrl":"10.1007/s11250-026-04859-4","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"80"},"PeriodicalIF":1.7,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12864337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107363","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}
Pub Date : 2026-01-30DOI: 10.1007/s11250-026-04887-0
Ali Benyounes, Karima Benhamza, Brahim Farou, Lynda Djakhdjakha, Hamid Seridi
{"title":"Enhancing estrus detection in dairy cows: a cumulative scoring model using sexual activity classification.","authors":"Ali Benyounes, Karima Benhamza, Brahim Farou, Lynda Djakhdjakha, Hamid Seridi","doi":"10.1007/s11250-026-04887-0","DOIUrl":"https://doi.org/10.1007/s11250-026-04887-0","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"76"},"PeriodicalIF":1.7,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146087301","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}
{"title":"Effects of graded levels of dietary concentrate mixture on growth performance and nutrients use efficiency of afar and bati goat breeds fed on panicum grass hay as a basal diet.","authors":"Anwar Seid, Yesihak Yusuf, Sileshi Gadissa, Fekede Feyissa, Aemiro Kehaliew","doi":"10.1007/s11250-025-04807-8","DOIUrl":"https://doi.org/10.1007/s11250-025-04807-8","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"71"},"PeriodicalIF":1.7,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146087327","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}
Pub Date : 2026-01-30DOI: 10.1007/s11250-026-04846-9
Khaled M Al-Marakby, Islam G Abdelghani, Ehab El-Haroun, Zeinab Mahasneh, Roshmon Thomas Mathew, Asmaa M Sheiha, Mohamed F Abo El-Maati, El-Sayed Hemdan Eissa, Md Altafur Rahman, Sameh A Abdelnour
{"title":"Guava leaf (Psidium guajava) byproducts in animal and fish diets: a review of health benefits, immunomodulation, and sustainable applications.","authors":"Khaled M Al-Marakby, Islam G Abdelghani, Ehab El-Haroun, Zeinab Mahasneh, Roshmon Thomas Mathew, Asmaa M Sheiha, Mohamed F Abo El-Maati, El-Sayed Hemdan Eissa, Md Altafur Rahman, Sameh A Abdelnour","doi":"10.1007/s11250-026-04846-9","DOIUrl":"https://doi.org/10.1007/s11250-026-04846-9","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"78"},"PeriodicalIF":1.7,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146087463","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}
Pub Date : 2026-01-30DOI: 10.1007/s11250-026-04850-z
Henrique N Parente, Vanilsa C Sousa, Gabrielle M Oliveira, Osmar M F Neto, Gisele T A Silveira, Aylpy R D Santos, Juliana D Oliveira, Anderson M Zanine, Daniele J Ferreira, Miguel A Moreira Filho, Michelle O M Parente
{"title":"Parkia platycephala pod meal as a total replacement for Tifton-85 hay in high-concentrate diets for lambs: ingestive behavior, physiological, and metabolic parameters.","authors":"Henrique N Parente, Vanilsa C Sousa, Gabrielle M Oliveira, Osmar M F Neto, Gisele T A Silveira, Aylpy R D Santos, Juliana D Oliveira, Anderson M Zanine, Daniele J Ferreira, Miguel A Moreira Filho, Michelle O M Parente","doi":"10.1007/s11250-026-04850-z","DOIUrl":"10.1007/s11250-026-04850-z","url":null,"abstract":"","PeriodicalId":23329,"journal":{"name":"Tropical animal health and production","volume":"58 2","pages":"75"},"PeriodicalIF":1.7,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12858488/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146087388","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}
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