Effect of supplementation level on performance of growing Nellore and its influence on pasture characteristics in different seasons
| Autor: | Ivanna Moraes de Oliveira, Laura Franco Prados, Marcella de Toledo Piza Roth, Rodolfo Maciel Fernandes, Gustavo Rezende Siqueira, L. Custodio, Flávio Dutra de Resende, Matheus Henrique Moretti |
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| Přispěvatelé: | Centro Universitário da Fundação Educacional de Barretos - UNIFEB, Universidade Estadual Paulista (Unesp), Agroceres Multimix, Agência Paulista de Tecnologia dos Agronegócios - APTA |
| Rok vydání: | 2018 |
| Předmět: |
Wet season
040301 veterinary sciences Zebu cattle Beef cattle Biology Pasture 0403 veterinary science Animal science Dry season Grazing medicine Compensatory growth (organism) Compensatory growth energy supplementation zebu cattle Completely randomized design lcsh:SF1-1100 geography geography.geographical_feature_category 0402 animal and dairy science 04 agricultural and veterinary sciences Seasonality medicine.disease 040201 dairy & animal science compensatory growth tropical pasture Animal Science and Zoology lcsh:Animal culture protein |
| Zdroj: | Italian Journal of Animal Science, Vol 18, Iss 1, Pp 215-225 (2019) Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1828-051X |
| Popis: | Made available in DSpace on 2018-12-11T16:55:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01 Eighty-four Nellore bulls (269 ± 27 kg; 13 months) were used in a completely randomized design to evaluate different supplementation strategies on the performance of growing Nellore cattle grazing Panicum maximum cv. Tanzania in the rainy season and rainy-to-dry season transition. In the rainy season, 42 animals received mineral salt (MS) ad libitum and 42 received protein supplement (PR) at 1 g kg−1 body weight (BW). In the rainy-to-dry season transition, 28 animals received MS, 28 received PR at 1 g kg−1 BW, and 28 received a protein-energy (PE) supplement at 3 g kg−1 BW. In the rainy season, the PR supplement increased average daily gain (ADG), providing a significant increase of 17 kg in final BW. In the first period of the rainy-to-dry season transition, PE promoted better performance than MS, while PR did not differ from the two other treatments. In the second period of the rainy-to-dry season transition, PE and PR increased ADG by 41% and 31%, respectively, compared with MS. In the third period, all supplements differed from each other. Bulls fed PE had greater final BW compared with animals fed PR and MS. In conclusion, during the rainy season, PR supplementation should be provided even under good pasture conditions. Also, during the rainy-to-dry season transition, protein-energy supplementation is recommended to compensate for quantitative and qualitative deficiencies of the pasture. Centro Universitário da Fundação Educacional de Barretos - UNIFEB Universidade Estadual Paulista–UNESP Agroceres Multimix Agência Paulista de Tecnologia dos Agronegócios - APTA Universidade do Estado de São Paulo–UNESP and Agência Paulista de Tecnologia dos Agronegócios - APTA Universidade Estadual Paulista–UNESP Universidade do Estado de São Paulo–UNESP and Agência Paulista de Tecnologia dos Agronegócios - APTA |
| Databáze: | OpenAIRE |
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