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Dr. Cesar A. Rosales-Nieto

Dr. Nieto headshot
Office: AG 214 (512) 245-3327

Assistant Professor –  Applied Animal Science

Dr. Cesar A. Rosales-Nieto is an Assistant Professor in the Department of Agricultural Sciencesat Texas State University. Before joining Texas State University, Dr. Rosales-Nieto worked at the University of San Luis Potosi in Mexico as a full-time Professor, and before that, at the National Institute for Forestry, Agriculture and Livestock Research (INIFAP-Mexico) as a Principal Researcher in Animal Science. Dr. Rosales-Nieto graduated from the Universidad Autonoma de San Luis Potosi (Mexico) with a BSc in Agronomy (Hons). He received a Master’s degree in Animal Reproduction from Texas A&M University-Kingsville. Subsequently, Dr. Rosales-Nieto obtained his Doctoral degree in Physiology of Reproduction from the University of Western Australia. He investigated the role of muscle and fat accumulation on the onset of puberty and the reproductive efficiency of sheep. He was a Fulbright-Garcia Robles scholar and pursued his post-doctoral studies at Michigan State University (USA) on the mechanism that underlies maternal diet manipulation on fetal programming and postnatal development.


Postdoctoral Fellowship: Michigan State University

PhD. Animal Biology Department. The University of Western Australia.

Diplomado. CIESTAAM. Universidad Autónoma Chapingo.

M Sc. Physiology of the Reproduction. Texas A&M Kingsville University. 

B Sc. Facultad de Agronomía. Universidad Autónoma de San Luis Potosí.

Research interests:

Understanding the fundamental events that regulate animal production and reproduction is key to improving our management to manipulate the environment to increase efficiency in livestock animals. Small ruminants (goats and sheep) provide a powerful model system to investigate reproductive consequences due to the similarity between sheep and human pregnancy and their developmental trajectories during fetal and postnatal life. 

Dr. Rosales Nieto's research is aimed at understanding how environmental factors and nutritional manipulation at different stages of the physiological process (conception, gestation, early lactation) can influence fetal growth, milk and colostrum production, birth weight, and secondary consequences during postnatal development, the onset of puberty and reproductive efficiency of small ruminants (sheep and goats) reared in arid and semi-arid rangelands. Importantly, it is to understand the role of different placental signals, metabolites, metabolic and reproductive hormones on muscle and fat tissue on the development and further reproductive activity when an insult has occurred.

Future studies will investigate the role of different nutritional alternatives at different stages of the physiological process (conception, gestation, early lactation) to enhance the productive and reproductive efficiency of small ruminants (sheep and goats) reared in semi-arid rangelands.

More about Dr. Nieto's scholarly work