Assistant Professor - Animal PhysiologyLigia Prezotto Calves

Research Interests

I am interested in implementing research that examines the effects of diet using whole-animal models to evaluate molecular mechanisms within the gastrointestinal and reproductive systems. I am also interested in implementing research that will examine manipulations in nutrient intake throughout gestation that programming fetal development and thus efficiency of the offspring later in life. I feel that it is important to have a better understanding of the modifications that the manipulation of nutrient intake can cause on cellular growth and metabolism, which will lead to nutrient utilization in tissues that have a great importance in energy and protein utilization in the body and consequently dictate the efficiency of the animal in different production states throughout life. Moreover, I want to continue investigating how these nutrient manipulations influence the central nervous system, where signals ultimately orchestrating the regulation of the liver, pancreas, and small intestine are generated. I want to have a better understanding of how these effects can be altered in animals during fetal development to influence the health and efficiency of the animal throughout production. Altogether, I believe that having a better understanding of basic mechanisms can help  scientists to develop new managerial techniques to improve the efficiency of digestion, absorption, and nutrient utilization in the gastrointestinal tract and reproductive success.



Bachelor of Science - Animal Science - University of Sao Paulo, Pirassununga, SP Brasil

Master of Science - Physiology of Reproduction - Texas A&M University, College Station, TX

Doctor of Philosophy - Animal Science, Physiology of Ruminant Nutrition - North Dakota State University, Fargo, ND



Nutritional & Reproductive Physiology Laboratory

Research Gate




Phone: 406-265-6115

Fax: 406-265-8288



Prezotto LD; Camacho LE; Lemley CO; Keomanivong FE; Caton JS; Vonnahme KA; Swanson K. Nutrient restriction and realimentation in beef cows during early-and mid-gestation and maternal and fetal hepatic and small intestinal in vitro oxygen consumption. Animal 2015; Accepted.

Alves BRC; Cardoso RC; Prezotto LD; Thorson JF; Bedenbaugh M; Sharpton SM; Caraty A; Keisley DH; Tedeschi LO; Williams GL; Amstalden M. Elevated Body Weight Gain During the Juvenile Period Alters Neuropeptide Y-Gonadotropin-Releasing Hormone Circuitry in Prepubertal Heifers. Biology of Reproduction 2014; 92(2):46.

Cardoso RC; Alves BRC; Prezotto LD; Thorson JF; Tedeschi LO; Keisler DH; Amstalden M; Williams GL. Reciprocal changes in leptin and NPY during nutritional acceleration of puberty in heifers. Journal of Endocrinology 2014; 223(3):289-298.

Cardoso RC; Alves BRC; Prezotto LD; Thorson JF; Tedeschi LO; Keisler DH; Park CS; Amstalden M; Williams GL. Use of a stair-step compensatory gain nutritional regimen to program the onset of puberty in beef heifers. Journal of Animal Science 2014; 92:2942-9.

Camacho LE; Lemley CO; Prezotto LD; Bauer ML; Freetly HC; Swanson KC; Vonnahme KA. Effects of maternal nutrient restriction followed by re-alimentation during mid-gestation on uterine blood flow in beef cows. Theriogenology 2014; 81(9):1248-56.

Thorson JF; Prezotto LD; Rodolfo CC; Sharpton SM; Edwards JF; Welsh TH; Riggs PK; Caraty A; Amstalden M; Williams GL. Hypothalamic distribution, adenohyphyseal receptor expression, and ligand functionality of RF-amide-related peptide 3 in the mare during the breeding and non-breeding seasons. Biology of Reproduction 2014; 90(2):28-35.

Thorson JF; Prezotto LD; Cardoso RC; Allen CC; Alves BRC; Amstalden M; Williams GL. Pharmacologic application of native GnRH in the winter anovulatory mare, II: Accelerating the timing of pregnancy. Theriogenology 2013; 81(4):625-31.

Prezotto LD; Lemley CO; CamachoLE; Doscher FE; Meyer AM; Caton JS; Vonnahme KA; Swanson KC. Effects of nutrient restriction and melatonin supplementation on maternal and fetal hepatic and small intestinal energy utilization. Journal of Animal Physiology and Animal Nutrition 2013; 98:797-807.

Williams GL; Thorson JF; Prezotto LD; Velez IC; Cardoso RC; Amstalden M. Reproductive seasonality in the mare: neuroendocrine basis and pharmacologic control. Domestic Animal Endocrinology 2012; 43(2):103-15.

Gobesso AAO; Moreira AMF; Pastori WT; Ribeiro RM; Prezotto LD; Gonzaga IVF; Etchichury M; Brandi RA. Apparent digestibility and plasmatic concentration of triglycerides and cholesterol in horses fed vegetable oil. Resista Brasileira de Saude e Producao Animal2011; 12(1)254-63.

Pastori WT; Ribeiro RM; Fagundes MHR; Prezotto LD; Gobesso AAO. Soybean oil supplementation in the diet of foals. Revista Brasileira de Zootecnia 2009; 38:1779-84.

Ribeiro RM; Pastori WT; Fagundes MHR; Prezotto LD; Gobesso AAO. Inclusion of different fat sources and mineral oil in equine diet. Revista Brasileira de Zootecnia 2009; 38:1989-94.

Gobesso AAO; Lorenzo CLF; Prezotto LD; Rennó FP. Effects of alfalfa processing and addition of soybean oil on the total diet digestibility of foals. Revista Brasileira de Zootecnia 2009; 4:713-17.

Gobesso AAO; D'Auria E; Prezotto LD; Rennó FP. Replacement of corn by ground or extruded sorghum in diets for horses. Revista Brasileira de Zootecnia 2008; 11:2011-6.