2015
DOI: 10.3168/jds.2015-9348
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Effects of feeding birdsfoot trefoil hay on neutral detergent fiber digestion, nitrogen utilization efficiency, and lactational performance by dairy cows

Abstract: This experiment was conducted to determine effects of feeding birdsfoot trefoil hay-based diets in comparison with an alfalfa hay-based diet on N utilization efficiency, ruminal fermentation, and lactational performance by mid-lactation dairy cows. Nine multiparous lactating Holstein cows (131 ± 22.6 d in milk), 3 of which were rumen fistulated, were fed 3 experimental diets in a replicated 3 × 3 Latin square design with 3 periods of 14 d of adaptation and 7 d of data and sample collection. Within squares, cow… Show more

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Cited by 22 publications
(21 citation statements)
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“…For dairy cattle, feeding L. corniculatus rather than M. sativa increased microbial protein production (Christensen et al, 2015). In contrast, multiple in vivo sheep trials (n = 11) using a wide range of dietary CT concentrations (0-200 g/kg DM) reported no effect on microbial protein synthesis (Min et al, 2003).…”
Section: Interactions Between Condensed Tannins and Protein In The Dietmentioning
confidence: 94%
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“…For dairy cattle, feeding L. corniculatus rather than M. sativa increased microbial protein production (Christensen et al, 2015). In contrast, multiple in vivo sheep trials (n = 11) using a wide range of dietary CT concentrations (0-200 g/kg DM) reported no effect on microbial protein synthesis (Min et al, 2003).…”
Section: Interactions Between Condensed Tannins and Protein In The Dietmentioning
confidence: 94%
“…lower NH 3 dilution as in Dickhoefer et al (2016)] or because energy availability was limiting for microbial growth. Christensen et al (2015) also reported no differences in rumen NH 3 -N concentration of lactating dairy cows after replacing 50 or 100% of M. sativa hay with L. corniculatus (0.51% CT). The lack of response appears to be due to high variation (1.244 mg/100 mL) given that NH 3 -N concentrations were greater in the M. sativa diet (8.33 mg/100 mL) versus the mixed (6.05 mg/100 mL) and L. corniculatus-based (6.70 mg/100 mL) diets (Christensen et al, 2015).…”
Section: Interactions Between Condensed Tannins and Protein In The Dietmentioning
confidence: 97%
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“…Olivo et al (2009) Neutral detergent fiber (NDF) and acid detergent fiber (ADF) are the main indicators of forage quality and influence consumption, energy density, milk production, animal health, and feed cost (Christensen et al, 2015). Mertens (1994) stated that NDF limits consumption and is directly related to forage fiber content and rumen filling time.…”
Section: Acta Scientiarum Animal Sciencesmentioning
confidence: 99%
“…The remaining mass was dried at 60 °C for 72 h, ground to pass a 1-mm screen, and stored for other chemical analyses. Digestibility was calculated from the intake and concentrations of AIA, as well as these components in the diets fed, refusals and in feces, according to this equation: Intake of digested nutrient (kg/d) = intake of digested nutrient (kg/d) × {100 − [100 × (AIAd/AIAf) × (nutrientf/nutrientd)]} where AIAd = AIA concentration in the diet actually consumed, AIAf = AIA concentration in the feces, nutrientf = concentration of the nutrient in the feces, and nutrientd = concentration of the nutrient in the diet actually consumed [ 33 , 34 ].…”
Section: Methodsmentioning
confidence: 99%