https://doi.org/10.1590/1984-3143-AR2024-0138
Anim Reprod, vol.23 n1, e20240138, 2026, Publication date December 15, 2025 Developmental competence of alpaca oocytes matured in vivo with seminal plasma and following additional in vitro maturation Nancy Milagros Silva Huanca; Víctor Hugo Cornelio Díaz; Luis Antonio Auqui Rojas; Alexis Ivan Huaman Apaza; Wilfredo Huanca López

https://doi.org/10.1590/1984-3143-AR2025-0051
Anim Reprod, vol.23 n1, e20250051, 2026, Publication date December 18, 2025 Small extracellular vesicles from follicular fluid as transport carriers of LHR: possible mediators of follicle growth and dominance acquisition in bovine reproduction Luca Angi Souza; Nico G. Menjivar; Ahmed Gad; Paulo Henrique Groppo Rodrigues; Letícia Rabello da Silva Sousa; Paola Maria da Silva Rosa; Alessandra Bridi; Dawit Tesfaye; Juliano Coelho da Silveira

https://doi.org/10.1590/1984-3143-AR2025-0043
Anim Reprod, vol.23 n1, e20250043, 2026, Publication date January 13, 2026 Effect of weaning age on pregnancy rates in Braford beef heifers bred at 13 months Maria Eduarda Cocco Dallanóra; José Fernando Piva Lobato; Javier Alexander Bethancourt-Garcia; Mariana Assis Borges; Rangel Fernandes Pacheco; João Restle; Ricardo Zambarda Vaz

https://doi.org/10.1590/1984-3143-AR2025-0070
Anim Reprod, vol.23 n1, e20250070, 2026, Publication date January 22, 2026 Histomorphometric characterization of the uterus and placenta in Piau and Commercial sows during early gestation Tânia Fernandes Martins; Lívia Maria dos Reis Barbosa; Luiz Otávio Guimarães Ervilha; Mariana Machado Neves; Alysson Saraiva; José Domingos Guimarães; Mateus Guimarães dos Santos; Paula da Fonseca Pereira; Simone Eliza Facioni Guimarães

https://doi.org/10.1590/1984-3143-AR2025-0075
Anim Reprod, vol.23 n1, e20250075, 2026, Publication date January 22, 2026 Ovarian structures modulate cellular aggregation and gene expression in oviductal isthmus cells Isabelle Cristina Pereira; Ana Carolina Bahia Teixeira; Raphael Rocha Wenceslau; Erika Cristina Jorge; Paola Maria da Silva Rosa; Julia Meireles Nogueira; Jade Carceroni de Sousa Carvalho; Gabriela Ponath Peruzzo; José de Oliveira Carvalho; Leticia Zoccolaro Oliveira

https://doi.org/10.1590/1984-3143-AR2025-0118
Anim Reprod, vol.23 n1, e20250118, 2026, Publication date January 22, 2026 High male proportions of Nile tilapia in a zero-water exchange biofloc system even at lower methyltestosterone concentration in the feed and water temperature below ideal José Fernando Paz Ramírez; Érika Ramos de Alvarenga; Franklin Fernando Batista da Costa; Kelly Moura Keller; Ana Paula Campos; Natan Paulo Bento Pio; Rafael Hiroaki Ito; Lee Deyver Carvalho Pena Mansur; William Gleidson Alves Torres; Vinícius Monteiro Bezerra; Dara Cristina Pires; Laryssa Evelyn Santos Soares; Guilherme Figueira Gonçalves; Gabriela Lago Biscoto; Marcelo Rezende Luz; Eduardo Maldonado Turra

https://doi.org/10.1590/1984-3143-AR2025-0041
Anim Reprod, vol.23 n1, e20250041, 2026, Publication date January 27, 2026 Effects of calcium chloride and formalin injection into mediastinum testis on testosterone level, testicular tissue and semen quality in dogs Zehra Coşkun Bahçe; Fikret Karaca

https://doi.org/10.1590/1984-3143-AR2025-0084
Anim Reprod, vol.23 n1, e20250084, 2026, Publication date January 30, 2026 Effect of the use of eCG on the pregnancy rate in dairy cows treated with a prolonged proestrus protocol in the Ecuadorian Amazon Manuel Edelberto Ortega-Coello; Orlando Roberto Quinteros-Pozo; Pablo Roberto Marini; Gabriel Amílcar Bó

https://doi.org/10.1590/1984-3143-AR2025-0050
Anim Reprod, vol.23 n1, e20250050, 2026, Publication date February 06, 2026 Immunolocalization of aromatase and estrogen and androgen receptors in the gonads and mesonephros of Podocnemis expansa during the first year of life Maria Fabiele Silva Oliveira; Layla Ianca Queiroz Rocha; Lucas Castanhola Dias; André de Macedo Medeiros; Moacir Franco de Oliveira; Carlos Eduardo Bezerra de Moura; Marcela dos Santos Magalhães

https://doi.org/10.1590/1984-3143-AR2025-0003
Anim Reprod, vol.23 n1, e20250003, 2026, Publication date February 10, 2026 Standardization of techniques and conditions for in vitro ovulation induction in Astyanax altiparanae Cristiane Fernanda Benevente; Mariana Roza de Abreu; Queila Carla Ameno Alves; Laíza Maria de Jesus Silva; Roosevelt Passos Barbosa; Samyra Maria dos Santos Nassif Lacerda; Sergio Ricardo Batlouni

https://doi.org/10.1590/1984-3143-AR2025-0106
Anim Reprod, vol.23 n1, e20250106, 2026, Publication date February 12, 2026 Hormone residues are not detected in zero water exchange biofloc system during tilapia masculinization even in higher feed input Dara Cristina Pires; Érika Ramos de Alvarenga; Franklin Fernando Batista da Costa; Kelly Moura Keller; José Fernandes Bezerra Neto; Mariana Parrini Ferreira; Gabriela Lago Biscoto; Isabela Lopes Samary; Karen Beatriz Guerra Lima; Vinícius Monteiro Bezerra; Caroline Lopes de Melo; Lee Deyver Carvalho Pena Mansur; Williane Ferreira Menezes; José Fernando Paz Ramírez; Luiza Fujii Almeida; Daiana dos Reis Pelegrine; Marcelo Rezende Luz; Eduardo Maldonado Turra

https://doi.org/10.1590/1984-3143-AR2024-0098
Anim Reprod, vol.23 n1, e20240098, 2026, Publication date February 13, 2026 Melatonin mitigates dichlorvos-induced derangements in the testes and epididymis of male Wistar rats Olumide Samuel Ajani; Ekundayo Stephen Samuel

https://doi.org/10.1590/1984-3143-AR2025-0104
Anim Reprod, vol.23 n1, e20250104, 2026, Publication date February 24, 2026 Yolk sac development in dogs: from morphology to functional aspects Caio Garcia Barbosa da Silva; Julia Rodrigues Greghi; Maria Fernanda Frasson Pontes; Guilherme Schiess Cardoso; Maria Isabel Mello Martins; Carlos Eduardo Ambrósio; Phelipe Oliveira Favaron

https://doi.org/10.1590/1984-3143-AR2025-0085
Anim Reprod, vol.23 n1, e20250085, 2026, Publication date February 25, 2026 Celiotomy to collect spermatogonial stem cells in Brycon orbignyanus for species preservation Laís Gonçalves da Silva; Karel Gelina Torres-Lozano; Rômulo Batista Rodrígues; Thaiza Rodrigues de Freitas; Jayme Aparecido Povh; Louise Nex Spica; Nathalia dos Santos Teixeira; Douglas Cosme Selle; Jhony Lisbôa Benato; Raquel Santos dos Santos; Eduardo Thomé Nicoleti; Renata Villar Dantas; Danilo Pedro Streit Junior

https://doi.org/10.1590/1984-3143-AR2024-0143
Anim Reprod, vol.23 n1, e20240143, 2026, Publication date December 18, 2025 Experimental models for subclinical hypocalcemia and endometritis induction in cattle: a literature review Jerbeson Hoffmann da Silva; André Gustavo Cabrera Dalto; Eduardo Schmitt; Bernardo Garziera Gasperin; Carlos Bondan; Monique Tomazele Rovani