| Grant number: | 12/09535-1 |
| Support Opportunities: | Research Projects - Thematic Grants |
| Duration: | December 01, 2012 - November 30, 2015 |
| Field of knowledge: | Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding |
| Principal Investigator: | Flávio Augusto Portela Santos |
| Grantee: | Flávio Augusto Portela Santos |
| Host Institution: | Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil |
| Associated researchers: | Cláudio Vaz Di Mambro Ribeiro ; Dennis Paul Poppi ; Luiz Gustavo Ribeiro Pereira ; Roberto Sartori Filho ; Sila Carneiro da Silva |
| Associated scholarship(s): | 12/23288-7 - Interactions between supplementation and pasture management on voluntary intake and ingestive behavior of beef cattle, BP.IC |
Abstract
The objective of this project is to assess the effects of energy supplementation on cattle performance and metabolic variables. This project is divided in two parts with dairy cows and beef cattle supplementation. Three experiments will be conducted in dairy cows (performance and metabolism study), whose focus is the dairy cows in early lactation grazing tropical pasture and supplemented with protected fat. These studies have the purpose to evaluated protected fat sources, doses of fat and fat supplementation associated with corn processing. Milk yield, milk composition, fatty acid profile, pasture intake, total intake, microbial protein, blood variables, ruminal variables and kinetics variables (cannulated cows), mammary gland gene expression, morphological and chemical characterization of pasture, body weight, body condition score, energy balance, efficiency of livestock production. Beef cattle supplementation will evaluate the interaction between grazing management and energy supplementation and the association between levels and sources of the supplement in the rainy season on herbage intake, feeding behavior, ruminal, microbial and blood parameters of Nelore cattle. Seven experiments will be performed with rumen cannulated steers to determine the effects of doses of supplement and supplement source associated with the sward. Finally, all experiments with beef cattle and milk cows will be tested in the in vitro gas production. All data will be analyzed with the SAS statistical package. (AU)
| Articles published in Pesquisa FAPESP Magazine about the research grant: |
| Low-carbon livestock |
| Por una ganadería con menos carbono |
| El esfuerzo de Brasil para reducir la huella de carbono de la producción ganadera |
| Brazil making efforts to reduce the carbon footprint of livestock |
| Articles published in Agência FAPESP Newsletter about the research grant: |
| TITULO |
| Articles published in other media outlets (0 total): |
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| VEICULO: TITULO (DATA) |