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Del Valle,Tiago Antonio; Jesus,Elmeson Ferreira de; Paiva,Pablo Gomes de; Bettero,Vitor Pereira; Zanferari,Filipe; Acedo,Tiago Sabella; Tamassia,Luis Fernando Monteiro; Rennó,Francisco Palma. |
This study evaluated the effects of organic and inorganic sources of minerals in diets for mid-lactation dairy cows on milk yield and composition, intake and total apparent digestibility of dry matter and nutrients, blood parameters, microbial protein synthesis, and energy and protein balances. Twenty Holstein cows averaging 146.83±67.34 days in milk and weighing 625.30±80.37 kg were used. The experimental design was a crossover. Diets were composed of corn silage (50%), ground grain corn, and soybean meal, differing with regard to the sources of trace minerals, plus an organic and inorganic mix. The organic mineral source increased milk fat and fat-corrected milk yield without changing milk yield, intake, or total apparent digestibility. Blood parameters,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Holstein; Milk fat; Mineral nutrition; Organic mineral. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000300103 |
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Gandra,Jefferson Rodrigues; Takiya,Caio Seiti; Oliveira,Euclides Reuter de; Paiva,Pablo Gomes de; Goes,Rafael Henrique de Tonissi e Buschinelli de; Gandra,Érika Rosendo de Sena; Araki,Hayne Mayumi Cariolano. |
ABSTRACT This study was undertaken to determine the effects of chitosan and whole raw soybean on nutrient intake and total tract digestion, nitrogen utilization, microbial protein synthesis, blood metabolites, and energy balance of dairy heifers. Twelve Jersey heifers (6±0.5 months of age and 139.50±25.56 kg of live weight; mean ± standard deviation) were randomly assigned to a replicated Latin square design with a 2 × 2 factorial arrangement. The experimental period consisted of 14 days of adaptation to diets, six days of sampling, and five days of washout. The experimental diets were: control (CO); chitosan (CHI, inclusion of 2.0 g kg−1 DM of chitosan); whole raw soybean (WS, 163.0 g kg−1 of WS on diet DM basis); and chitosan + whole raw soybean... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial; Nitrogen metabolism; Oilseed; Rumen modulator. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000300130 |
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