Farelo de glúten de milho para vacas leiteiras em pastos de azevém anual

Filho, Henrique Mendonça Nunes Ribeiro; Giacomet, Carlos Dionei; Dias, Kamila Maciel; Crestani, Steben; Setelich, Elena Apezteguia; Neto, André Thaler

doi:10.1590/s0103-84782009005000018

Cited by 1 publication

(2 citation statements)

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“…This would allow an intake of up to 17 kg DM·day -1 for high potential productive cows in the absence of quantitative or structural restrictions (PEYRAUD; DELAGARDE, 2013). In addition, the protein content is within the range described in experiments using ryegrass pastures in the same experimental area (168 to 196 g·kg -1 DM) in previous years (MIGUEL et al, 2014;RIBEIRO-FILHO et al,2007, 2009a.…”

Section: Resultssupporting

confidence: 56%

“…However, the cows used by the aforementioned authors were lighter (532 ± 56.5 kg) and the pasture used had higher CP contents and lower NDF contents than the ones in this study. In addition, the pasture used by Ribeiro-Filho et al (2009a), had characteristics that probably contributed to a higher daily intake of pasture (16.6 kg DM) than those in this study. Supplement supply caused a NE l increase of approximately 20 MJ·day -1 , leading to increased milk and protein production.…”

Section: Resultsmentioning

confidence: 66%

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Energy and tannin extract supplementation for dairy cows on annual winter pastures

Alves

Dias

Dallastra

et al. 2017

SCA

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Energy supplementation can increase the consumption of metabolizable energy and substrate for microbial growth, while condensed tannins aid in increasing the duodenal flow of metabolizable proteins. The objective of this study was to evaluate the effects of energy supplementation and the inclusion of tannin extract (TE) from Acacia mearnsii (Weibull Black, Tanac S. A., Montenegro, Brazil) on the production performance of dairy cows grazing on winter pastures. Nine multiparous Holstein cows in mid lactation were distributed in a 3 × 3 Latin square experimental design over three periods of 28 days (21 adaptation and 7 sampling). The treatments were: without supplementation (WS), supplementation with 4 kg of corn grain (CG), and corn grain + 80 g of tannin extract (TE). The dry matter (DM) intake from pastures was similar among treatments, but the consumption of DM of the supplement was higher in the CG treatment than that in the TE treatment. The total DM intake was higher for the supplemented animals (17.3 kg·day -1 ) than that for the unsupplemented animals (14.9 kg·day -1 ) and in the TE treatment (17.7 kg·day -1 ) than in the CG treatment (16.7 kg day -1 ). Milk production increased from the unsupplemented to the supplemented animals (20.9 to 23.5 kg, respectively), while the content of urea N in the milk decreased (12.6 to 10.5 mg·100 mL -1 , respectively). There were no differences in milk production or content of milk urea N between the CG and TE treatments. Energy supplementation is a tool for improving the nutritional profile and the performance of dairy cows in mid lactation grazing on annual winter pastures, while tannin extract aids in improving the energy balance.

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Section: Resultssupporting

confidence: 56%

Section: Resultsmentioning

confidence: 66%