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Updated: Feb 19, 2026

Protocol for Assessing the Relative Effects of Environment and Genetics on Antler and Body Growth for a Long-lived Cervid
Published on: August 8, 2017
Effects of protein-energetic supplementation frequency on growth performance and nutritional characteristics of
Renata Pereira da Silva-Marques1, Joanis Tilemahos Zervoudakis2, Nelcino Francisco De Paula2
1Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Mato Grosso, Cuiabá, Mato Grosso, Brazil. renatinharps@hotmail.com.
Abstract:
Two experiments were conducted to evaluate reduced supplementation frequencies for grazing beef cattle in rainy season. In experiment 1, evaluating the nutritional parameters, four rumen-cannulated Nellore bulls (BW = 410 kg) were used. In experiment 2, evaluating animal performance, 48 Nellore bulls (BW = 358 kg) were used. The treatments were as follows: mineral supplement (MS) alone and MS plus protein-energy supplement provided 3×, 5× and 7×/week. Supplementation frequency did not affect (P > 0.05) intake and digestibility. Average daily gain was greater (P < 0.001) to supplementation compared with MS. The supplementation 5×/week resulted in greater weight gain per hectare (9.24) and higher economic returns during the study period (1.64%) compared to other supplementations. Supplementation 5×/week increased animal performance and positively influenced economic returns.
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