CV Lattes
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Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALQ) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Carla Maris Machado Bittar graduated in 1994 in Agronomy from ESALQ/USP, obtained her Master of Science from the University of Arizona in 1997 and completed her PhD in Animal Science and Pastures also at ESALQ/USP in 2002. She is currently a professor of dairy cattle management and nutrition at the Department of Animal Science at ESALQ/USP. She coordinates both the extension group CCB (Clube de Criação de Calves) and the Animal Metabolism Research Group. Advises undergraduate and graduate students and conducts research on nutrition and metabolism of growing dairy cattle, with focus on the preweaning period. (Source: Lattes Curriculum)
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Due to its effects on the rumen development process, fiber supply is typically low in dairy calf diets. For this reason, the fiber requirement of these animals is not well known, with great variation in recommendations and in some cases, non-recommendation. On the other hand, feeding diets with a high starch content and reduced particle size can result in a high rate of fermentation and a…
The project will be composed of three experiments with the evaluation of different alimentary management and its effects on the ruminal and / or intestinal microbioma, performance and metabolism of dairy calves. In each experiment, 15 calves will be used per treatment in a randomized complete block design. In all experiments the animals will be housed and fed individually, allowing indivi…
The objective of the study was to evaluate different liquid feeding systems with a medium crude protein milk replacer and their effects on performance, rumen and blood parameters. Thirty newborn Holstein calves were blocked according to birth weight and date of birth, and randomly distributed to different liquid feeding systems: i) Conventional: 4L/d; ii) Intensive: 8L/d; iii) Step-up/ste…
Dairy calves performance is associated with management practices and physiological processes related to colostrum feeding. The aim of this project is evaluation of simple methods to ensure good colostrum protocols and the effect of colostrum intake on thermogenesis and metabolism of calves. To determine the best time to estimate calf´s blood immunoglobulin concentration by total protein, …
(Only some records are available in English at this moment)
During the lactation phase, the type of liquid diet provided has a great influence on the performance, health and development of the dairy calf, which will have immediate and long-term effects, impacting future production. In turn, the physical form of the solid diet is related to the early development of the gastrointestinal tract. Therefore, this study aims to evaluate the association o…
Due to the importance of health and performance during the initial phase of development and throughout the productive life of cattle, the production and supply of high-quality colostrum is essential for the success of this production chain. For this reason, understanding factors that may interfere with colostrogenesis or the process of passive immunity transfer is becoming increasingly ne…
The solid diet transitions calves from monogastric to polygastric state due to their key role of rumen stimulation, and the goal of solid food is that they consume the amount necessary to meet their nutritional requirements as soon as possible. It is recommended the initial supply of foods in the form of concentrates as their association with the development of ruminal papillae. And studi…
(Only some records are available in English at this moment)
The present proposal aims to obtain a research grant abroad to carry out several recycling activities, training in new research techniques in the field, and writing scientific papers at the University of Florida with Dr. Emily Miller-Cushon, who is a reference in the area of calf behavior and welfare. There will be great involvement with the completion of a major project conducted by Dr. …
This study aims to evaluate different levels of the replacement of corn silage by triticale silage using an artificial rumen (Rusitec). The experiment will run as a completely randomized design with a factorial treatment structure (proportion triticale silage: corn silage; 0:100, 33:67, 67:33, and 100:0) replicated in two Rusitec apparatuses (n = 8 fermenters). Fermenter will be considere…
The experiment will be a 2 x 2 x 2 factorial arrangement of 8 treatments with 8 anaerobic dual-flow continuous cultures and 4 periods in a randomized incomplete block. The continuous cultures will be randomly assigned to a treatment with either BCVFA supplementation (2 mmol/d of isobutyrate, 2 mmol/d isovalerate, and 2 mmol/d 2-methylbutyrate) or no additional BCVFA, high forage: concentr…
(Only some records are available in English at this moment)
| 1 / 1 | Ongoing grants |
| 18 / 7 | Completed research grants |
| 19 / 17 | Completed scholarships in Brazil |
| 4 / 4 | Completed scholarships abroad |
| 42 / 29 | All research grants and scholarships |
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