Vitória Gasperin Guazzelli Costa, Fabiane Pereira de Moraes, Monique Tomazele Rovani, Rogério Ferreira, Jr Sergio Farias Vargas, Fernando Caetano de Oliveira, Bernardo Garziera Gasperin, Martielo Ivan Gehrcke, Arnaldo Diniz Vieira, Rafael Gianella Mondadori
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Laparoscopic Artificial Insemination Affects Stress and Inflammatory Markers in Ewes.
Laparoscopy is the preferred technique for artificial insemination (AI) with frozen semen in sheep, given the ovine cervix's anatomical challenges. This study assessed if and when laparoscopic AI alters stress and inflammation markers. Ewes underwent estrus synchronization and were divided into Control (hormonal protocol only; n=4) and LP (laparoscopic AI 54-60 h post-protocol; n=5) groups. Blood samples were collected at D-1 (pre-fasting), 0 h (during AI), 30 min, 60 min, 24 h, and 48 h post-procedure to measure serum cortisol, total protein (TP), albumin, and paraoxonase 1 (PON1). LP ewes showed elevated cortisol (p=0.01) at 0 h and 48 h compared to Controls. Albumin decreased acutely in LP at 0 h, 30 min, and 60 min. PON1 activity and TP remained unchanged, though data variability suggests larger samples for future validation. In conclusion, laparoscopic AI modulates cortisol and albumin, highlighting the need for strategies to reduce procedure-induced stress and inflammation, which can impair reproductive performance.
期刊介绍：
Journal of Applied Animal Welfare Science (JAAWS) publishes articles on methods of experimentation, husbandry, and care that demonstrably enhance the welfare of nonhuman animals in various settings. For administrative purposes, manuscripts are categorized into the following four content areas: welfare issues arising in laboratory, farm, companion animal, and wildlife/zoo settings. Manuscripts of up to 7,000 words are accepted that present new empirical data or a reevaluation of available data, conceptual or theoretical analysis, or demonstrations relating to some issue of animal welfare science. JAAWS also publishes brief research reports of up to 3,500 words that consist of (1) pilot studies, (2) descriptions of innovative practices, (3) studies of interest to a particular region, or (4) studies done by scholars who are new to the field or new to academic publishing. In addition, JAAWS publishes book reviews and literature reviews by invitation only.
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