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Metabolic attributes, yield and stability of milk in Jersey cows fed diets containing sodium citrate and sodium bicarbonate PAB
Stumpf,Marcelo Tempel; Fischer,Vivian; Kolling,Giovani Jacob; Zanela,Maira Balbinotti; Ribeiro,Maria Edi Rocha; Abreu,Alexandre Süsenbach de.
The objective of this work was to evaluate the inclusion of sodium citrate and sodium bicarbonate in the diet of lactating Jersey cows, and its effects on the metabolic attributes, productivity and stability of milk. We evaluated urinary pH, levels of glucose and urea in blood, body weight, body condition score, milk yield, milk stability (ethanol test), and milk physicochemical properties of 17 cows fed diets containing sodium citrate (100 g per cow per day), sodium bicarbonate (40 g per cow per day) or no additives. Assessments were made at the 28th and 44th days. Supply of sodium citrate or bicarbonate has no influence on the metabolic attributes, productivity, body weight, and body condition score of the cows, neither on the composition and stability...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bos taurus; Additives; Alcohol test; Unstable nonacid milk.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000500014
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Feeding restriction impairs milk yield and physicochemical properties rendering it less suitable for sale Scientia Agricola
Fruscalso,Vilmar; Stumpf,Marcelo Tempel; McManus,Concepta Margaret; Fischer,Vivian.
Feed shortages are relatively frequent in subtropical pasture-based dairy production systems. The effect of feed restriction on milk yield and physical-chemical traits was evaluated in this study. The experiment was carried out in Brazil's south region. Treatments consisted of control and restricted diet. Six multiparous and six primiparous cows, with 499 ± 47.20 kg body weight (BW), at mid-lactation (188 ± 124 days in milk), producing 19.35 ± 4.10 kg of milk were assigned to two groups, balanced for parity, each group receiving a different sequence of the dietary treatments for 56 days, in a crossover design. Diet nominated as control included 8 kg DM 100 kg BW-1 of Bermuda grass var. Tifton pasture (Cynodon dactylon (L.) Pers.), 5.00 kg of concentrate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alcohol test; Grazing systems; Milk stability; Underfeeding.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000400003
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