Influence of replacing concentrate mixture with AFEX pellets on rumen fermentation, blood profile and acetamide content in the rumen of crossbred (Alpine × Beetle) female goats

Mor, Preeti; Bals, Bryan; Kumar, Sachin; Tyagi, Nitin; Reen, Jagish Kour; Tyagi, Bhawna; Choudhury, Prasanta Kumar; Tyagi, Amrish Kumar

doi:10.1016/j.smallrumres.2018.10.016

Cited by 11 publications

(8 citation statements)

References 34 publications

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“…Acetamide has been classified as Group 2B possible human carcinogen by the International Agency for Research on Cancer (Vismeh et al, 2018) because of incidences of liver carcinoma during feeding trials in rats (Jackson and Dessau, 1961;Fleischman et al, 1980). Recent studies suggest that ruminal accumulation of acetamide from AFEX treatment is transient and certain ruminal bacteria can grow on the amide (Mor et al, 2019). Nevertheless, research on the effects and fate of residual acetamide in cattle fed AFEX-treated forages are needed to ensure that meat and milk are not contaminated.…”

Section: Alkali Treatmentmentioning

confidence: 99%

Symposium review: Technologies for improving fiber utilization

Adesogan

Arriola

Jiang

et al. 2019

Journal of Dairy Science

107

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The forage lignocellulosic complex is one of the greatest limitations to utilization of the nutrients and energy in fiber. Consequently, several technologies have been developed to increase forage fiber utilization by dairy cows. Physical or mechanical processing techniques reduce forage particle size and gut fill and thereby increase intake. Such techniques increase the surface area for microbial colonization and may increase fiber utilization. Genetic technologies such as brown midrib mutants (BMR) with less lignin have been among the most repeatable and practical strategies to increase fiber utilization. Newer BMR corn hybrids are better yielding than the early hybrids and recent brachytic dwarf BMR sorghum hybrids avoid lodging problems of early hybrids. Several alkalis have been effective at increasing fiber digestibility. Among these, ammoniation has the added benefit of increasing the nitrogen concentration of the forage. However, few of these have been widely adopted due to the cost and the caustic nature of the chemicals. Urea treatment is more benign but requires sufficient urease and moisture for efficacy. Ammonia-fiber expansion technology uses high temperature, moisture, and pressure to degrade lignocellulose to a greater extent than ammoniation alone, but it occurs in reactors and is therefore not currently usable on farms. Biological technologies for increasing fiber utilization such as application of exogenous fibrolytic enzymes, live yeasts, and yeast culture have had equivocal effects on forage fiber digestion in individual studies, but recent meta-analyses indicate that their overall effects are positive. Nonhydrolytic expansinlike proteins act in synergy with fibrolytic enzymes to increase fiber digestion beyond that achieved by the enzyme alone due to their ability to expand cellulose microfibrils allowing greater enzyme penetration of the cell wall matrix. White-rot fungi are perhaps the biological agents with the greatest potential for lignocellulose deconstruction, but they require aerobic conditions and several strains degrade easily digestible carbohydrates. Less ruminant nutrition research has been conducted on brown rot fungi that deconstruct lignocellulose by generating highly destructive hydroxyl radicals via the Fenton reaction. More research is needed to increase the repeatability, efficacy, cost effectiveness, and onfarm applicability of technologies for increasing fiber utilization.

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Section: Alkali Treatmentmentioning

confidence: 99%

Symposium review: Technologies for improving fiber utilization

Adesogan

Arriola

Jiang

et al. 2019

Journal of Dairy Science

107

View full text Add to dashboard Cite

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“…Rumen ammonia nitrogen concentration was determined as outlined in previous publication of Corredu et al [12]. Rumen volatile fatty acid and its fractions were carried out according to the methods reported by Mor et al [13], while rumen microbes were counted according to the report of Corredu et al [14]. Data collected from the study were subjected to descriptive statistics and analysis of variance (ANOVA) using the general linear modeling procedure [15].…”

Section: Chemical and Statistical Analysesmentioning

confidence: 99%

Effect of Garlic Oil Supplementation on Intake, Digestibility, Performance and Rumen Function of Goats Fed Silage Based-diet

Okoruwa

Edoror

2019

EJNFS

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This study was conducted to assess the effect of garlic oil supplementation on intake, digestibility, performance and rumen function of goats. Thirty goats with initial average body weight of 6 ± 0.99 kg were randomly divided into five treatments with six goats each in a completely randomized design. The diets contained a control group without garlic oil (CA1) and diets supplemented with garlic oil at 20 g (GB2), 25 g (GC3), 30 g (GD4) and 35 g (GE5). Results showed that acid detergent fibre and lignin (66.02 and 52.37%) digestibility, total volatile fatty acid with acetate (88.62 mM and 69.68mol/100mol), feed conversion ratio (9.47), ammonia nitrogen (12.39mg/dl), methane (21.96mol/mol) and protozoa (8.93 x 108 cfµ/mol) of goats reared on CA1 were (P < 0.05) higher than those on test diets (GB2, GC3, GD4 and GE5). Goats fed on GC3 and GD4 diets had higher (P < 0.05) nutrients digestibility with rumen parameters, daily weight gain and intake compared with those on CA1, CB2 and GE5 diets. The ether extract intake (58.09%) and digestibility (64.03%) in goats reared on GE5 were (P < 0.05) higher than those on other diets. Ash intake and digestibility, rumen pH, iso-butyrate, valerate, iso-valerate and total fungi count were not significantly (P > 0.05) affected by treatment diets. In conclusion, the supplementation of garlic oil to treatment diets improved intake, digestibility, performance and rumen function of goats, indicating garlic oil as alternative additive to improve poor quality feeds.

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“…These feeds can be used to alleviate feed deficits and increase economic efficiency of feed production by reducing the pressure on cereal crops, particularly in regions where forages are scarce. Their high fiber content that is associated with low nutrient intake and digestibility limits their optimal utilization and productivity in ruminants [2], [3]. Thus, there is a strong incentive to search for natural feed additives with good potentials that can improve feed efficiency for enhancing ruminant performance.…”

Section: Introductionmentioning

confidence: 99%

Manipulation of Rumen Fermentation and Microbial Diversity for Live-Weight Gains of Sheep as Influenced by Ginger Powder and Lime Peel

Okoruwa

Aidelomon

2020

EJBIO

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The study was conducted to determine the influence of ginger powder and lime peel on manipulation of rumen function for live-weight gains of sheep. Twenty four West African dwarf sheep of about 8 – 9 months old with average weight of 7.00 ± 0.95kg were randomly assigned to four treatment diets in a completely randomized design. The prepared diets contained; ED1 (0% ginger powder and 0% lime peel powder that served as control group), ED2 (0% ginger powder and 3% lime peel), ED3 (1.5% ginger powder and 1.5% lime peel) and ED4 (3% ginger powder and 0% lime peel). In all the diets examined, ED1 showed higher significant (p<0.05) values in total fungi, Acetobact xylinum, Methanogens, total protozoa, Entodiniomorphs, Holotrichs, ammonia-nitrogen, total volatile fatty acids, acetate, butyrate and feed conversion ratio. However, total bacteria, Ruminococcus albus, Ruminococcus fibrisolvens, Bacillus spp, propionate, feed intake, nutrient digestibility, final and daily weight gains indicated significant (p<0.05) higher values in diet ED3 than diets ED1, ED2 and ED4. Rumen pH was significantly (p<0.05) higher in ED4 as compared with other diets. There was no significant (p>0.05) difference in Fibrobacter succinogens, iso-butyrate, valerate, iso-valerate and initial weight among diets. It can be concluded that using 1.5% ginger powder and 1.5% lime peel in the diets enhanced rumen fermentation and ecology for growth performance of sheep.

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Influence of replacing concentrate mixture with AFEX pellets on rumen fermentation, blood profile and acetamide content in the rumen of crossbred (Alpine × Beetle) female goats

Cited by 11 publications

References 34 publications

Symposium review: Technologies for improving fiber utilization

Symposium review: Technologies for improving fiber utilization

Effect of Garlic Oil Supplementation on Intake, Digestibility, Performance and Rumen Function of Goats Fed Silage Based-diet

Manipulation of Rumen Fermentation and Microbial Diversity for Live-Weight Gains of Sheep as Influenced by Ginger Powder and Lime Peel

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