scholarly journals Effects of Physically Effective Neutral Detergent Fiber Content on Intake, Digestibility, and Chewing Activity in Fattening Heifer Fed Total Mixed Ration

2016 ◽  
Vol 29 (12) ◽  
pp. 1719-1724
Author(s):  
Mi Rae Oh ◽  
Heeok Hong ◽  
Hong Liang Li ◽  
Byong Tae Jeon ◽  
Cheong Hee Choi ◽  
...  
Keyword(s):  
Fiber Content ◽  
Neutral Detergent Fiber ◽  
Total Mixed Ration ◽  
Chewing Activity

scholarly journals Effects of forages and total mixed rations particle size on physical effectiveness and chewing activity of lactating cows

2011 ◽  
Vol 27 (3) ◽  
pp. 935-942
Author(s):  
B. Stojanovic ◽  
G. Grubic ◽  
N. Djordjevic ◽  
A. Bozickovic ◽  
A. Ivetic
Keyword(s):  
Particle Size ◽  
Fiber Content ◽  
Corn Silage ◽  
Total Mixed Ration ◽  
Lactating Cows ◽  
Particle Length ◽  
Chewing Activity

In study are determined effects of four different mean lengths of corn silage, alfalfa haylage and total mixed ration (TMR) for lactating cows on physical effectiveness (pef), physically effective fiber content (peNDF) and total chewing activity. High correlations were found between mean particle length of forages and TMR and their physical effectiveness in lactating cows nutrition as also with physically effective fiber content. Significant effect of ration particle size on stimulating total chewing activity of lactating cows was determined.

Prediction of neutral detergent fiber content in corn stover using near-infrared spectroscopy technique

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Xuyang Pan ◽  
Laijun Sun ◽  
Guobing Sun ◽  
Panxiang Rong ◽  
Yuncai Lu ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Prediction Model ◽  
Spectral Data ◽  
Corn Stover ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Cross Validation ◽  
Fiber Content ◽  
Partial Least Square ◽  
Neutral Detergent Fiber

AbstractNeutral detergent fiber (NDF) content was the critical indicator of fiber in corn stover. This study aimed to develop a prediction model to precisely measure NDF content in corn stover using near-infrared spectroscopy (NIRS) technique. Here, spectral data ranging from 400 to 2500 nm were obtained by scanning 530 samples, and Monte Carlo Cross Validation and the pretreatment were used to preprocess the original spectra. Moreover, the interval partial least square (iPLS) was employed to extract feature wavebands to reduce data computation. The PLSR model was built using two spectral regions, and it was evaluated with the coefficient of determination (R2) and root mean square error of cross validation (RMSECV) obtaining 0.97 and 0.65%, respectively. The overall results proved that the developed prediction model coupled with spectral data analysis provides a set of theoretical foundations for NIRS techniques application on measuring fiber content in corn stover.

scholarly journals Nutritional value of tifton 85 bermudagrass at two cutting heights and different times of storage

2017 ◽  
Vol 38 (4) ◽  
pp. 2129
Author(s):  
Samantha Mariana Monteiro Sunahara ◽  
Marcela Abbado Neres ◽  
Jaqueline Rocha Wobeto Sarto ◽  
Caroline Daiane Nath ◽  
Kácia Carine Scheidt ◽  
...  
Keyword(s):  
Dry Matter ◽  
Nutritional Value ◽  
Ground Level ◽  
Matter Content ◽  
Fiber Content ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Dry Matter Content ◽  
Cutting Height

The goal of this study was to assess the dehydration curve and nutritional value of Tifton 85 bermudagrass at two cutting heights from ground level (4 and 8 cm) during 120 days of storage in a closed shed. The dehydration curve was determined using samples from the entire plant at eight different times. The experimental design consisted of randomized blocks with plots subdivided per times and five replicates. The second step consisted of assessing the nutritional value of the stored Tifton 85 bermudagrass in randomized blocks with plots subdivided per times and two treatments per plot: cutting height of four and eight centimeters from the ground, and five different times for the subplots, with five replicates. Dehydration of Tifton 85 bermudagrass at the two heights occurred in 48 hours, considered an ideal time for hay drying. The dry matter content responded quadratically to the time of storage of the two heights, only differing during baling and after 120 days of storage. Crude protein content had a quadratic behavior in the two cutting heights, with the smallest value after 30 days of storage (107.0 g kg-1) and the largest after 90 days (147.8 g kg-1) in the cutting height of eight centimeters. The ether extract exhibited a quadratic behavior in the two cutting heights, only differing after 90 days of storage. The neutral detergent fiber content had linear positive response according to the time of storage, with no difference between the cutting heights. For the neutral detergent fiber content in the two cutting heights, the quadratic regression model was the best fit to the data, differing between the heights after 30 and 60 days of storage. In vitro dry matter digestibility and in vitro cell wall digestibility values of the stored hay were lower than the values obtained at the time of cutting. Cutting performed at four centimeters from the ground was the most suitable for hay production due to higher dry matter production and nutritional value without difference between bailing treatments. Hay storage caused undesirable changes in the nutritional value, especially in fiber content and in vitro digestibility.

Effects of physically effective neutral detergent fibre content on dry-matter intake, digestibility and chewing activity in beef cattle fed total mixed ration

2015 ◽  
Vol 55 (2) ◽  
pp. 166 ◽  
Author(s):  
Jae Hyun Park ◽  
Kyoung Hoon Kim ◽  
Pyo Jam Park ◽  
Byong Tae Jeon ◽  
Mi Rae Oh ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Dry Matter ◽  
Bos Taurus ◽  
Mixing Time ◽  
Latin Square ◽  
Eating Rate ◽  
Total Mixed Ration ◽  
Neutral Detergent Fibre ◽  
Significant Difference ◽  
Chewing Activity

Our aim in this study was to determine the effects of physically effective neutral detergent fibre (peNDF) in a total mixed ration (TMR) on feed intake, digestibility and chewing activity in beef cattle. The experiment had a replicated 3 × 3 Latin square desig, using three fattening Hanwoo (Bos taurus coreanae) steers with ruminal cannulas. Steers were offered one of three diets (high, medium or low peNDF content) obtained by mixing the same TMR for different periods of time (5, 13 and 25 min). peNDF content of TMR was calculated as [total chewing time/NDF intake (kg)] × dietary NDF content, and the proportion of sample dry matter (DM) collected in a ≥1.18-mm sieve is commonly used as the physical effectiveness factor in the equation. The peNDF1.18 contents of the high, medium and low diets were 25.97%, 21.10% and 17.94% (P < 0.05). In addition, the proportion of particles collected on the 19-mm, 1.18-mm, and pan sieves changed linearly with an increase of TMR mixing time. Mean particle-size distributions of diets were 11.43, 24.11, 30.70 and 33.68 for 19 mm, 8 mm, 1.18 mm and pan, respectively. Eating rate and ruminating and chewing efficiencies were significantly decreased with reduced peNDF content, and DM intake was increased significantly (P < 0.05). Lower peNDF content reduced the total number of chews significantly (P < 0.05). Total time spent chewing associated with eating was not affected by peNDF contents. Digestibility of DM, crude protein and crude fat decreased with reducing peNDF content in the diet, but there was no significant difference among the three groups. These results indicated that peNDF affects intake, digestibility and chewing activity in beef cattle. Therefore, high levels of peNDF appears to improve TMR, as it can increase efficiency and may prevent ruminal disorders in Hanwoo steer.

scholarly journals Variability in feed and total mixed ration neutral detergent fiber and crude protein analyses among commercial laboratories

2010 ◽  
Vol 93 (11) ◽  
pp. 5348-5362 ◽  
Author(s):  
A.N. Hristov ◽  
D. Mertens ◽  
S. Zaman ◽  
M. Vander Pol ◽  
W.J. Price
Keyword(s):  
Crude Protein ◽  
Neutral Detergent Fiber ◽  
Total Mixed Ration

scholarly journals Kandungan Acid Detergent Fiber Dan Neutral detergent Fiber Jerami Jagung fermentasi Dengan Mengunakan Jamur Trichoderma Viride Dengan Lama Inkubasi Berbeda

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Natalia Usman ◽  
Ellen Salah
Keyword(s):  
Significant Influence ◽  
Incubation Time ◽  
Trichoderma Viride ◽  
Fiber Content ◽  
Neutral Detergent Fiber ◽  
Corn Straw ◽  
Acid Detergent Fiber ◽  
Acid Detergent Fibre ◽  
Variance Result

The research was aimed at investingating acid detergent  fibre   neutral detergent Fiber content in corn straw fermented using Trichoderma Viride in different Incubation Time. It applied compeletey Randomizend Design consisting Of  4 treatments  and  4 repetitions,  hence, it resulted in 16 units  of  an experiment. The Treatments consisted of corn straw  withhout inoculation (control), 7%  corn straw  Fermented  with Trichoderma  viride in  1 week incubation time, 7%  corn  straw  Fermented  with Trichoderma Viride in  2 weeks incubation time, and 7% corn  straw fermented with Trichoderma Viride in 3 weeks incubation time.Analysis of variance result shows that corn straw fermented using Trichoderma  Viride in different Incubation Time gave significant inflluance toward ADF content (p0,05).  Besides ,  corn straw fermentd using Trichoderma Viride in different incubation Time gave significant influence toward NDF content(p0,05).

scholarly journals Effect of Total Mixed Ration Particle Size on Rumen pH, Chewing Activity, and Performance in Dairy Cows

2003 ◽  
Vol 16 (12) ◽  
pp. 1755-1762 ◽  
Author(s):  
M. M. Schroeder ◽  
H. W. Soita ◽  
D. A. Christensen ◽  
G. R. Khorasani ◽  
J. J. Kennelly
Keyword(s):  
Particle Size ◽  
Dairy Cows ◽  
Total Mixed Ration ◽  
Rumen Ph ◽  
And Performance ◽  
Chewing Activity
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