23 documents found, page 1 of 3
Chemical composition and fatty acid profile of a seed-propagated elephant grass...
Lopes, Fernando César Ferraz; Bedeschi, Gabriela Vasconcelos; Morenz, Mirton José Frota; Lédo, Francisco José da Silva; Paciullo, Domingos Sávio CamposThis study aimed to evaluate the chemical composition and fatty acid (FA) profile of forage and silage of a seed-propagated elephant grass genotype called “PCEA” harvested at 75, 90, 105 and 120 days of regrowth. A randomized block design with five replications was used. The results were analyzed by mixed models (P < 0.05) that included treatment (regrowth age) as a fixed effect and block as a random effect....
Short-term changes in plasma and milk fatty acid profiles in cows fed chopped e...
Lopes, Fernando César Ferraz; Ribeiro, Carlos Gustavo Santos; Rodriguez, Norberto Mario; Gama, Marco Antônio Sundfeld da; Morenz, Mirton José FrotaThe study was carried out in a randomized block design, in a 2 x 2 factorial arrangement, with the aim to evaluating during 21 days the short-term changes in plasma and milk fatty acid (FA) profile in Holstein x Gyr cows (444±84 kg; 75±31 days in milk; 15.4±4.8 kg day-1 of milk) fed 600 g kg-1 DM chopped elephant grass-based diets supplemented with 45 g kg-1 DM sunflower oil (SO). Two types of SO were evaluated...
Chemical composition and fatty acid profile of BRS Capiaçu ensiled at different...
Lopes, Fernando César Ferraz; Morenz, Mirton José Frota; Lédo, Francisco José da Silva; Carneiro, Jailton da Costa; Paciullo, Domingos Sávio CamposThis study aimed to evaluate the chemical composition and fatty acid (FA) profile of chopped forage and silage of BRS Capiaçu elephant grass at four regrowth ages: 50, 70, 90 and 110 days. A randomized block design with five replications was used. The ensiling was carried out manually in experimental silos without wilting using no additives or bacterial inoculants. The results were analyzed using mixed models (...
Ruminal fermentation and degradation, kinetic flow of digesta and milk fatty ac...
Costa, Dayana Alves da; Lopes, Fernando César Ferraz; Rebouças, Gesiane Moura Neves; Carneiro, Jailton da Costa; Gama, Marco Antônio Sundfeld daThe aim of this study was to evaluate the ruminal fermentation and degradation parameters, the kinetic flow of digesta in the gastrointestinal tract, and the milk fatty acid (FA) profile in Holstein x Gyr cows fed 59% sugarcane silage-based diets with 0% (control), 5%, 10% and 15% whole cottonseed (WCS) on a dry matter (DM) basis. Four rumen-cannulated cows with an average milk yield of 14.4±3.3 kg day-1 and 85...
Ruminal parameters and fatty acid composition of omasal digesta and milk in cow...
Lopes, Fernando César Ferraz; Souza, Shirley Motta de; Valadares Filho, Sebastião de Campos; Gama, Marco Antônio Sundfeld da; Rennó, Luciana NavajasThis study evaluates the intake and digestion of nutrients, parameters of rumen fermentation and degradation, omasal digesta and milk fatty acid composition, productive performance, and the concentration of serum metabolites in cows fed 600 g kg-1 sugarcane-based diets containing 0 (control), 15, 30, and 45 g kg-1 sunflower oil (SO) on a dry matter (DM) basis. Four rumen-cannulated Holstein x Gyr cows yielding ...
Milk fatty acid composition in Holstein x Gyr dairy cows fed chopped elephantgr...
Lopes, Fernando César Ferraz; Ribeiro, Carlos Gustavo Santos; Rodriguez, Norberto Mario; Gama, Marco Antônio Sundfeld da; Morenz, Mirton José FrotaTwo experiments were carried out in a 2 x 2 factorial arrangement with the objective of evaluating two methods of concentrate feeding for Holstein x Gyr cows fed 600 g kg-1 chopped elephantgrass-based diets supplemented at 45 g kg-1 DM with two types of sunflower oil (SO). The types of SO differed in the levels of oleic and linoleic fatty acids (FAs): high oleic/low linoleic acid – HO (73 and 10 g 100 g-1 FA, r...
Cocoa byproduct in diets for dairy heifers
Figueiredo, Mércia Regina Pereira de; Saliba, Eloisa de Oliveira Simões; Barbosa, Geraldo Sérgio Senra Carneiro; Lopes, Fernando César FerrazThis study was conducted to evaluate the effect of substituting Tifton 85 hay (Cynodon sp. cv. Tifton 85) with levels of cocoa (Theobroma cacao) byproduct (0, 8, 16, and 24%, diet dry matter basis) in the diet of 16 Holstein × Gir heifers with an average body weight of 363.0±27.7 kg on their nutrient intake, digestibility, and protein balance. The experimental period was 17 days, and the sample collection perio...
Milk fatty acid composition of dairy goats fed increasing levels of Flemingia m...
Oiticica, Isabel das Neves; Fonseca, Carlos Elysio Moreira da; Lopes, Fernando César Ferraz; Morenz, Mirton José Frota; Gama, Marco Antônio Sundfeld daThe effect of dietary inclusion of increasing levels of Flemingia macrophylla hay on the yield, composition and fatty acid profile of milk from Saanen x Boer goats was evaluated. The diets were composed of 40% concentrate and 60% forage. The treatments were defined by the level of inclusion of Flemingia hay in the diet (0, 80, 160, 240 and 320 g kg-1 dry matter) in replacement of the Cynodon dactylon cv. Tifton...
Ruminal metabolic parameters and milk fatty acid profile of cows grazing Marand...
Mourthé, Mário Henrique França; Lopes, Fernando César Ferraz; Reis, Ronaldo Braga; Gama, Marco Antônio Sundfeld da; Morenz, Mirton José FrotaThe goal of this study was to evaluate the ruminal metabolic parameters and milk fatty acid composition of cows managed under continuous grazing on Marandu grass. Four rumen-cannulated Holstein x Gyr cows with an average milk yield of 21±2 kg day-1 and 79±16 days in milk were used in a 4 x 4 Latin Square design. Each cow received 6 kg day-1 of a concentrate formulated with 0 (control), 1.3, 2.6 or 3.9 kg of roa...
Performance of Holstein x Gyr dairy cows fed hydrolyzed sugarcane-based diets
Campos, Mariana Magalhães; Borges, Ana Luiza da Costa Cruz; Pancoti, Carlos Giovani; Silva, Ricardo Reis e; Moreira, Tainá SilvestreTwelve 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% or 2% calcium oxide (CaO). The voluntary consumption and digestibility of dietary nutrients, milk production and composition, and feeding behavior of cows were evaluated. A switchback design with three periods, four treatmen...