Annual Sexual Behavior in Boer Bucks located in the Guerrero Tropics in Mexico

• DOI: 10.20944/preprints202305.0329.v1
• Publication Date: 2023-05-06T00:54:46Z
• Authors: José Luis Ponce-C...; Ethel Caterina Ga...; Maricela Ruiz-Ortega; Blanca Celia Pine...; Aurora Matilde Gu...; Marisol Paredes-A...; Pedro Enrique Her...; Fernando Torres-A...; Oscar Ángel-García; José Manuel Roble...; José del Carmen R...; Edgar Valencia-Fr...
• Keywords: 2. Zero hunger; vocalizations; annual sexual response; body weight; odor intensity; testicular circumference; vocalizations; sexual rest; Nutrition. Foods and food supply; 0402 animal and dairy science; annual sexual response; 04 agricultural and veterinary sciences; odor intensity; body weight; sexual rest; TX341-641; testicular circumference

The aim of this study was to evaluate the intensity of the annual sexual behavior (SB) of Boer bucks under tropical conditions in southern Mexico. For one year, 16 extensively grazing males were evaluated for SB individually with estrogenized goats. From the beginning of the experiment and every 30 days, body weight (BW), body condition (BC), testicular circumference (TC), odor intensity (OI) and SB (nudging, ano-genital sniffing, flehmen, mounting attempts, mounts with intromission, and self-urination) were recorded. The bucks showed a more intense SB during the months of November to May than during the months of June to October (p < 0.05). Greater frequency was found for nudging, ano-genital sniffing, mounting attempts, and self-urination in the months of November to May (p < 0.001). BW was lower during the months of January to August than in the months of September to December (p < 0.05). On the other hand, TC increased from October to December (p < 0.05). Similarly, the OI in males varied over time (time effect; p < 0.001). In fact, an increased odor was found from October to December. The conclusions were that breed male goats from the tropics of Guerrero have a more intense SB during the months of November to May, which corresponds to the time of the year when forage availability is the greatest.