Effects of different forage sources as a free-choice provision on the performance, nutrient digestibility, selected blood metabolites and structural growth of Holstein dairy calves

2016 ◽  
Vol 101 (2) ◽  
pp. 293-301 ◽  
Author(s):  
B. Movahedi ◽  
A. D. Foroozandeh ◽  
P. Shakeri
Keyword(s):  
Free Choice ◽  
Nutrient Digestibility ◽  
Dairy Calves ◽  
Blood Metabolites ◽  
Structural Growth

scholarly journals Effects of the step-up/step-down and step-down milk feeding procedures on the performance, structural growth, and blood metabolites of Holstein dairy calves

2015 ◽  
Vol 98 (11) ◽  
pp. 7975-7981 ◽  
Author(s):  
H. Omidi-Mirzaei ◽  
M. Khorvash ◽  
G.R. Ghorbani ◽  
B. Moshiri ◽  
M. Mirzaei ◽  
...  
Keyword(s):  
Dairy Calves ◽  
Blood Metabolites ◽  
Structural Growth ◽  
Step Down ◽  
Milk Feeding

scholarly journals Effects of Dietary Alkyl Polyglycoside Supplementation on Lactation Performance, Blood Parameters and Nutrient Digestibility in Dairy Cows

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 549
Author(s):  
Xiaoli Zhang ◽  
Chunyu Jiang ◽  
Qinghua Gao ◽  
Duanqin Wu ◽  
Shaoxun Tang ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Milk Fat ◽  
Dry Matter ◽  
Basal Diet ◽  
Nutrient Digestibility ◽  
Blood Metabolites ◽  
Ionic Surfactant ◽  
Lactation Performance ◽  
Positive Effects ◽  
Alkyl Polyglycoside

This study evaluated the effects of alkyl polyglycoside (APG), which is a non-ionic surfactant, on lactation performance, nutrient digestibility and blood metabolites in dairy cows. Twenty dairy cows were randomly divided into four groups and fed a basal diet that included pelleted concentrate, distillers grains, and fresh limpograss. The four treatments included 0, 5.5, 11 and 22 mL APG per kg of pelleted concentrate on a dry matter basis; treatments were defined as APG0, APG5.5, APG11, and APG22, respectively. Dry matter intake was not affected by APG supplementation. There was an increase in milk yield (from 13.96 to 16.71 kg/day) and increases in milk fat (quadratic, p = 0.04), protein (quadratic, p = 0.10), and lactose concentrations (linear, p = 0.07) with increasing APG supplementation. In addition, APG supplementation increased (p ≤ 0.03) the milk fat, protein, solid non-fat, and total solid yields, while the lactose yield increased (linear, p = 0.01) as the APG level increased. Dietary APG supplementation had no effect on nutrient digestibility and blood metabolites. It was concluded that the addition of APG at doses up to 22 mL/kg of pelleted concentrate had positive effects on the milk composition in dairy cows.

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