Estado de la glándula mamaria y su relación con el número de partos en hato reproductor activo porcino

Edvin Méndez; Lissa Yelena Lázaro Lemus

doi:10.36314/cunori.v7i2.228

Authors

Edvin Méndez Universidad de San Carlos de Guatemala
Lissa Yelena Lázaro Lemus Universidad de San Carlos de Guatemala

DOI:

https://doi.org/10.36314/cunori.v7i2.228

Keywords:

swine, sow, mammary gland, mammary tissue, reproductive herd

Abstract

PROBLEM: the productivity of pig farms can be affected by the low efficiency in the management of selection of females that form the active reproductive herd, given that sometimes a complete analysis of the mammary gland of the sows is not carried out, without noticing the presence of supernumerary teats and bad conformation of the same in the mammary line, a situation that is complicated according to the number of births of the breeders. OBJECTIVE: To evaluate the state of the mammary gland of the females of the porcine active reproductive herd and its relationship with the number of deliveries. METHOD: the mixed-type study was carried out in a pig farm, through the analysis of live animals and the records of 423 Topigs Norsvin (TN60) sows, where the state of the tissue and the mammary line of active breeding females are described and classified and its relationship with the number of births. RESULTS: the evaluation allowed us to observe that problems in the shape and functionality of the mammary glands affect 16.55% of the population, even reaching parameters of "non-functional", a situation that is accentuated as the number of deliveries increases in the animal. CONCLUSION: When evaluating the mammary glands, it was observed that active reproductive females are affected in their form and functionality as there is an increase in the number of farrowings, mainly in active sows from the third farrowing onwards.

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Author Biographies

Edvin Méndez, Universidad de San Carlos de Guatemala

He is a Technician in Livestock Production, Zootechnician in the academic degree of Bachelor, Master in Education with Environmental Orientation, Doctor in Research for Social Development, obtained at the University of San Carlos de Guatemala.

He has been an adviser for Graduation Projects at the undergraduate level on pasture and forage issues, animal and meat microbiology, food safety, animal reproduction and rabbit farming, as well as Postgraduate on issues of: social development, food and nutritional security , environmental projects, neuroscience and educational statistics.

He has published articles and scientific essays in magazines: Scientific Magazine of the Postgraduate Studies System of the University of San Carlos of Guatemala, CUNORI Multidisciplinary Science Magazine, CUNZAC Academic Magazine, Nature, Society and Environment Magazine CUNSURORI, Magazine of the School of Environmental Studies. Postgraduate from the Faculty of Engineering/USAC, Rural Perspectives Magazine new era National University of Costa Rica.

Currently, he is Professor and Coordinator of the Zootechnics Career of the University Center of the East of the University of San Carlos de Guatemala, Delegate representing the University Center of the East before the Food and Nutrition Research program of the General Directorate of Research - DIGI /USAC, Delegate representing the Centro Universitario de Oriente before the National Network of University Extension of the USAC.

Lissa Yelena Lázaro Lemus, Universidad de San Carlos de Guatemala

He is a Zootechnician in the academic degree of Bachelor obtained at the University of San Carlos de Guatemala and is currently in the process of studying the Master's Degree in Agricultural Business Administration.

He works as a Family Agriculture Extension Agent at the Ministry of Agriculture and Livestock of Guatemala -MAGA- in the Department of Izabal.

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