Effects of Dietary Neutral Detergent Fiber on Intakes of Dry Matter and Net Energy by Dairy and Beef Cattle: Analysis of Published Data

Arelovich, H. M.; Abney, C. S.; Vizcarra, J. A.; Galyean, M. L.

doi:10.15232/s1080-7446(15)30882-2

Cited by 102 publications

(70 citation statements)

References 29 publications

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“…ADF fractions appear to be the determinant factors for feed digestibility and DM intake of ruminants. Our fi ndings are consistent with those of previous palatability and feeding studies of complete rations including crude fi bers (NDF, ADF) fed to dairy cattle, sheep, and goats [109,110]. Total fi ber (NDF, ADF) concentrations of diets are effective basis of exchanging fi ber sources in feedlot diets, and small increases in dietary NDF in feedlot diets might increase net energy without major changes in feed effi ciency [111].…”

Section: Observations Of Palatability and Performance Of Heiferssupporting

confidence: 90%

Observations on silage making of landscape conocarpus browse residues as feed ingredient in kuwait

Baroon¹,

Razzaque²

2013

Int. J. SDP

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There is a chronic shortage of local feeds in Kuwait, and almost 95% of total feeds are expensively imported. Therefore, efforts were focused to explore the possible utilization of locally available landscape browse residues as feed ingredients. Landscape greenery residues have increased with locally implemented greenery programs. Conocarpus lancifolius is an ornamentally predominant tree among landscape plantations, daily resulting in over 120 t of residual by-products without being utilized. Ensiling, was considered as a technically sound strategy for proper utilization of Conocarpus residues as an upgraded feed ingredient substituting imported conventional feeds. A total premix of 24 t of silage was prepared in pilot-scale trench silos for 30 days. Nutritional value of Conocarpus silage was evaluated, where mean values of 4.2 ± 0.12, 4.95 ± 0.32%, and 7.3 × 108 ± 0.12 colony forming units (CFU)/g of silage for pH, lactic acid, and lactic acid bacteria were achieved, respectively. Palatability and feeding trials were performed for four months on 60 growing heifers of Holstein-Friesian breed grouped in six dietary treatments. Formulated feed rations contained 20, 30, 40, 50 and 60% silage partially replacing conventional roughages (alfalfa, hay straw). Control dietary treatment contained 100% conventional feed ingredients. Daily dry matter intake and feed conversion ratio were signifi cantly (p > 0.05) high. Results showed that grossly 40% of the conventional roughages could be replaced by the ensiled Conocarpus greenery browse residues. Cost/benefi t analysis was carried out on pilot-scale production of Conocarpus silage, confi rming a feasible, low cost, and competitive product where the cost was calculated to be Kuwaiti Dinar 33 (US$ 120)/t silage. Break-even point could be achieved after 30 months with production of 3,159 t silage. Potentially, low-cost Conocarpus silage could partially substitute expensive imported roughages, thereby alleviating feed shortage and, currently, promoting livestock production.

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Section: Observations Of Palatability and Performance Of Heiferssupporting

confidence: 90%

Observations on silage making of landscape conocarpus browse residues as feed ingredient in kuwait

Baroon¹,

Razzaque²

2013

Int. J. SDP

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“…The amount and quality of NDF in a diet can either enhance or limit intake. At lower NDF concentrations (7.5%-35.5%), DM intakes increased with increasing dietary NDF concentration, but DM intakes decreased sharply as NDF concentration increased over the range of 22.2%-45.8% in high-producing animals [28]. Low DM intakes at higher NDF contents is associated with rumen fill constraints [2].…”

Section: Indigestible Ndf and Its Importance To Voluntary Feed Intakementioning

confidence: 99%

“…The National Research Council [35] recommends dairy cow diets should contain approximately 30%-35% NDF in the DM. This range represents a balance between increasing voluntary intake of DM and milk production without compromising milk fat [28]. This low level of NDF can be difficult to achieve in subtropical/tropical areas due to the predominance of high NDF forages and so 40% is considered a more achievable target in subtropical grazing systems.…”

Section: The Use Of Ndf In Diet Formulationmentioning

confidence: 99%

“…This low level of NDF can be difficult to achieve in subtropical/tropical areas due to the predominance of high NDF forages and so 40% is considered a more achievable target in subtropical grazing systems. In terms of feedlot beef production, the NDF content in the diet is often much lower (16%) [28] due to the high starch diets. Lower levels of NDF in the diet could cause rumen dysfunction therefore a minimal level of NDF is required for animal health, whilst still meeting market specifications.…”

Section: The Use Of Ndf In Diet Formulationmentioning

confidence: 99%

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The Role iNDF in the Regulation of Feed Intake and the Importance of Its Assessment in Subtropical Ruminant Systems (the Role of iNDF in the Regulation of Forage Intake)

2015

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Abstract:The intake and digestibility of forages is largely influenced by the fibre content and specifically the neutral detergent fibre (NDF). Currently, the focus in commercial diet formulation and the modelling of animal performance is on the total NDF so as to achieve higher ruminant feed intakes, higher production performance and rumen health. Rations are often formulated for a specific level of NDF in the diet assuming that the digestibility of NDF operates over a narrow range. Forage NDF, particularly in C4 forages, varies greatly in potential digestibility within the rumen. This potential digestibility is defined as the NDF fraction which disappears after a long incubation period and the remaining indigestible component of NDF (iNDF) is unavailable for microbial digestion. It is hypothesized that this dietary iNDF has an important role in contributing to rumen digesta load and voluntary intake. Formulating a diet to a specific level of NDF without reference to the iNDF could markedly affect the resulting intake, digestibility and metabolisable energy (ME) content of the diet. It is concluded that nutritional models need to be modified to accept directly determined iNDF.

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“…From the laboratory analysis result, it is observed that NDF of FSF (32.7%) is lower than that of OG (42.8%). NDF content is negatively correlated with feed intake of animals (Arelovich et al, 2008). Accordingly, high NDF in the diets delay passage rate of digesta which leads to gut fill (Allison, 1985).…”

Section: Feed Intakementioning

confidence: 99%

Feed intake, milk yield and composition, and profitability of Horro Cows fed Rhodes grass hay supplemented with <i>Ficus sur</i> (Cv. Forssk) fruits

Kumsa¹,

Eshetu²,

Diba³

2018

Sci. Technol. Arts Res. J.

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Article InformationAn experiment was conducted in Horro Guduru Wollega Zone, at Guduru Animal Production and Research Center (GAPRC) of Wollega University to evaluate the effect of Ficus sur (Cv. Forssk) fruits (FSF) supplementation on feed intake, milk yield, composition and profitability of Horro cows. Twelve healthy lactating Horro cows of similar lactation stage, body weight and condition were selected from GAPRC. All of the selected cows were in early (one weak to 10days) lactation stage. The experiment had three treatments with four replications arranged in a randomized complete block design to which 2-5 parities were used as blocking factor, and three cows were used per parity. The treatments were: T1, Rhodes grass hay +1.7kg Oat grain +0.8kg Noug seed cake, T2, Rhodes grass hay +0.56kg Noug seed cake+0.97kg oat grain +0.97kg FSF and T3, Rhodes grass hay +0.8kg Noug seed cake+ 1.7kg FSF. The experiment was conducted for 60 days, including 15 days of adaptation. Except for crude protein intake, there were significant (P<0.05) differences in total dry matter, organic matter, neutral detergent fiber and acid detergent fiber intakes among treatment groups. Milk yields were increased with increase in levels of FSF in the diets. Except Lactose content, the compositions of milk were significantly differed (P<0.05) among treatment groups. Milk fat was highest for cows fed T1 diet. Supplementation of FSF was more profitable than those supplemented with oats grain (OG). In conclusion, supplementation of Horro cows with different proportion of FSF and OG maintained on basal diet of Rhodes grass hay has increased feed intake, milk yield and milk composition of dairy products. Due to high cost of agro industrial by products and cereal grains, it is advantageous to use FSF as supplement to improve milk production and composition, and profitability of Horro cows. Since FSF is promising energy supplement, further research is suggested to study the propagation and management of Ficus sur trees and estimation of their fruit yields.

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Effects of Dietary Neutral Detergent Fiber on Intakes of Dry Matter and Net Energy by Dairy and Beef Cattle: Analysis of Published Data

Cited by 102 publications

References 29 publications

Observations on silage making of landscape conocarpus browse residues as feed ingredient in kuwait

Observations on silage making of landscape conocarpus browse residues as feed ingredient in kuwait

The Role iNDF in the Regulation of Feed Intake and the Importance of Its Assessment in Subtropical Ruminant Systems (the Role of iNDF in the Regulation of Forage Intake)

Feed intake, milk yield and composition, and profitability of Horro Cows fed Rhodes grass hay supplemented with <i>Ficus sur</i> (Cv. Forssk) fruits

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