A5080850541- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Agriculture Sustainability and Environmental Impact
- Genetic and phenotypic traits in livestock
- Animal Nutrition and Physiology
- Effects of Environmental Stressors on Livestock
- Muscle metabolism and nutrition
- Agroforestry and silvopastoral systems
- Infant Nutrition and Health
- Animal Behavior and Welfare Studies
- Postharvest Quality and Shelf Life Management
- Phytoestrogen effects and research
- Liver Disease Diagnosis and Treatment
- Growth and nutrition in plants
- Agriculture and Farm Safety
- Agriculture, Soil, Plant Science
- Rabbits: Nutrition, Reproduction, Health
- Clostridium difficile and Clostridium perfringens research
Pennsylvania State University
2021-2024
Milliken & Company (United States)
2024
Kemin (Belgium)
2023
Washington State University
2023
Universidade de São Paulo
2018-2022
Instituto Federal Goiano
2014
Latin America and Caribbean (LAC) is a developing region characterized for its importance global food security, producing 23 11% of the beef milk production, respectively. The region's ruminant livestock sector however, under scrutiny on environmental grounds due to large contribution enteric methane (CH4) emissions influence climate change. Thus, identification effective CH4 mitigation strategies which do not compromise animal performance urgently needed, especially in context Sustainable...
The objective of this experiment was to investigate the effects an essential oil (EO) blend on lactational performance, rumen fermentation, nutrient utilization, blood variables, enteric methane emissions and manure greenhouse gas-emitting potential in dairy cows. A randomized complete block design conducted with 26 primiparous 22 multiparous Holstein 2-wk covariate a adaptation periods preceded 10-wk experimental period used for data sample collection. Treatments were: (1) basal diet...
The objective of this study was to evaluate lactational performance, enteric gas emissions, ruminal fermentation, nutrient use efficiency, milk fatty acid profile, and energy inflammatory markers in blood peak-lactation dairy cows fed diets supplemented with Capsicum oleoresin or a combination clove oil. A 10-wk randomized complete block design experiment conducted 18 primiparous 30 multiparous Holstein cows. Cows were blocked based on parity, days milk, yield (MY), randomly assigned 1 3...
Botanical extracts have a potential to modify ruminal fermentation while enhancing metabolism and immunity in dairy cows. The objective of this study was investigate the effects combination Capsicum oleoresin clove essential oil (botanicals; BTC) on lactational performance, nutrient utilization, enteric methane (CH4) emissions, blood parameters Twenty Holstein cows (12 multiparous 8 primiparous) averaging (±SD) 77 ± 28 d milk beginning were used replicated 4 × Latin square design experiment...
The objective of this study was to investigate the effects supplementation an exogenous enzyme preparation (EEP) on performance, total-tract digestibility nutrients, plasma AA profile, and milk fatty acids composition in lactating dairy cows fed a reduced-starch diet compared with normal-starch (i.e., positive control). Forty-eight Holstein (28 primiparous 20 multiparous) were enrolled 10-wk randomized complete block design experiment 16 per treatment. Treatments as follows: (1) (control)...
The objective was to evaluate the effects of separate offering feed ingredients (SF) and frequency concentrate feeding versus a TMR, on lactational performance, ruminal fermentation, enteric CH4 emissions, nutrient digestibility, N use efficiency, milk fatty acid profile, blood variables in mid-lactation dairy cows. Twenty-four Holstein cows (12 primi- 12 multiparous) averaging (±SD) 141 ± 35 DIM 43 6 kg/d yield (MY) at beginning study were used replicated 3 × Latin square design experiment...
The dairy Nutrients Requirements of Cattle (NRC) was developed using data from purebred Holsteins and it might not accurately predict the performance crossbred cattle. Our objectives were to evaluate effects two feeding levels (FLs) three breed compositions (BCs) on nutrient intake, digestibility, performance, methane (CH4) emissions prepubertal heifers. We used thirty-six heifers BCs: Holstein (H), Gyr (G), F1 × (HG). Each BC had 12 animals experiment designed as twelve incomplete by Latin...
Two experiments were conducted to investigate the production effects of N-acetyl-l-methionine (NALM; experiment 1) and estimate its bioavailability (BA) rumen escape (RE; 2), respectively, in lactating dairy cows. In 1, 18 multiparous Holstein cows used a replicated, 3 × Latin square design with three 28-d periods. Treatments (1) basal diet estimated supply 45 g/d digestible Met (dMet) or 1.47% metabolizable protein (MP; control), (2) top-dressed 32 NALM achieve dMet 2.2% MP, (3) 56 2.6% MP....
The objective of this experiment was to investigate the effect dietary levels digestible histidine (dHis) and MP on lactational performance plasma muscle concentrations free AA in dairy cows. A randomized block design conducted with 48 Holstein cows, including 20 primiparous, averaging (±SD) 103 ± 22 d milk 45 9 kg/d yield at beginning experiment. 2-wk covariate period preceded 12 experimental wk, which 10 wk were for data sample collection. Experimental treatments (1) MP-adequate (MPA) diet...
Desenvolveu-se esse estudo com o objetivo de avaliar a qualidade da silagem capim-piatã torta dendê (Elaeis guineensis Jacq.). O experimento foi conduzido no Instituto Federal Goiano, Campus Rio Verde. delineamento experimental utilizado inteiramente casualizado, quatro tratamentos e cinco repetições. Os foram compostos por ensilado nos níveis 0, 5, 10 15% base na matéria natural do capim-piatã. material picado, misturado, compactado em silos experimentais abertos após 60 dias fermentação....
We aimed to determine the energy requirements for maintenance and gain of 18 prepubertal dairy heifers three breed compositions (BC; Holstein, Gyr, Holstein × Gyr). Diets were formulated gains 0, 400, 800 g/day, corresponding 1.0×, 1.5×, 2.0× maintenance, respectively. Each BC had six animals with an initial body weight (iBW) 219.8 ± 32 kg, 215.8 33 228.3 kg The experiment was designed as a completely randomized design in factorial scheme 3 [three feeding levels (FL)]. Digestibility...
We aimed to estimate the protein requirements of pregnant Holstein × Gyr cows. A total 61 (HG) cows were used, with an average initial body weight (BW) 480 ± 10.1 kg and age 5 0.5 yr. Cows divided into 3 groups: (n = 43), nonpregnant 12), baseline 6). Baseline animals slaughtered before starting experiment composition remaining animals. Pregnant received 2 diets: maintenance ad libitum. at 139, 199, 241, 268 gestation days (GD). First, we used data only from determine for growth in adult The...
This study investigated the effects of extruded soybean meal (ESBM) in comparison with canola (CM) fed on an equivalent crude protein (CP) basis lactational performance and ruminal fermentation dairy cows. Following a 2-wk covariate period, 48 Holstein cows averaging (±SD): 146 ± 46 d milk (DIM) 43 7 kg/d yield (MY) were assigned 1 2 treatment diets randomized complete block design experiment, which included period for dietary adaptation before experimental data collected. samples collected...
A systematic literature review of in vitro studies was performed to identify methane (CH4) mitigation interventions with a potential reduce CH4 emission vivo. Data from 277 peer-reviewed published between 1979 and 2018 were reviewed. Individual classified into 14 categories feed additives based on their type, chemical composition, mode action. Response variables evaluated absolute (number treatment means comparisons = 1,325); total volatile fatty acids (VFA; n 1,007), acetate (n 783),...
Nine non-lactating Holstein x Gyr cattle were fed with rations based on chopped sugarcane supplied in natura (control) or hydrolyzed (fresh matter basis) for 24 h 1% 2% calcium oxide (CaO), which corresponds to 3.1% 6.2% CaO a dry (DM) basis, respectively. Ruminal parameters (pH and ammonia N, acetate, propionate butyrate concentrations) as well the kinetics of fluid particulate passage gastrointestinal tract from evaluated. A design using three 3 contemporaneous Latin Squares (LS) was...
Twelve multiparous 7/8 Holstein x Gyr dairy cows were fed diets based on chopped sugarcane supplied in natura (control) or after being hydrolyzed (fresh matter basis) for 24 h with 0.5%, 1% 2% calcium oxide (CaO). The voluntary consumption and digestibility of dietary nutrients, milk production composition, feeding behavior evaluated. A switchback design three periods, four treatments blocks was used. linear quadratic effects the analyzed using orthogonal contrasts, considered significant...