U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal name Animal feed science and technology Remove constraint Journal name: Animal feed science and technology Publication year rev 7989-2011 Remove constraint Publication year rev: 7989-2011 Source 2011 v.166-167 no. Remove constraint Source: 2011 v.166-167 no.
Start Over

Search

82  Search Results

« Previous | 1 - 20 of 82 |
Number of results to display per page

Search Results

1. Ammonia and nitrous oxide interactions: Roles of manure organic matter management

Author:
Søren O. Petersen; Sven G. Sommer
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 503-513
ISSN:
0377-8401
Subject:
ammonia; animal manure management; composting; dairy cattle; feeds; foods; greenhouse gas emissions; greenhouse gases; livestock production; models; nitrous oxide; nutrient management; organic matter
Abstract:
... Intensification of livestock production in many parts of the world has led to increasing atmospheric losses of N in connection with storage and field application of manure. Both types of emissions are influenced by manure organic matter content via mechanisms such as composting, crust formation, mineralization–immobilization turnover, and water retention. Manure management affects the potential fo ...
DOI:
10.1016/j.anifeedsci.2011.04.077

2. Assessment of the sulphur hexafluoride (SF6) tracer technique using respiration chambers for estimation of methane emissions from sheep

Author:
C.S. Pinares-Patiño; K.R. Lassey; R.J. Martin; G. Molano; M. Fernandez; S. MacLean; E. Sandoval; D. Luo; H. Clark
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 201-209
ISSN:
0377-8401
Subject:
acclimation; alfalfa silage; crates; emissions; excretion; feed intake; foods; gas chromatography; gases; greenhouse gases; methane; mixing; sheep; sulfur hexafluoride; tracer techniques
Abstract:
... Attempts to evaluate the sulphur hexafluoride (SF₆) tracer technique to estimate CH₄ emissions from ruminants have yielded mixed results. These studies either used SF₆ permeation tubes with a long history of use in animals, involved small number of animals or used partial animal enclosure. Our study was conducted with a relatively large number of experimental sheep and controlled variables regardi ...
DOI:
10.1016/j.anifeedsci.2011.04.067

3. Benchmarking of greenhouse gas emissions of bovine milk production systems for 38 countries

Author:
Martin Hagemann; Torsten Hemme; Asaah Ndambi; Othman Alqaisi; Mst. Nadira Sultana
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 46-58
ISSN:
0377-8401
Subject:
computer software; cows; dairy farming; developing countries; energy; equations; farming systems; farms; feeds; foods; greenhouse gas emissions; greenhouse gases; life cycle assessment; milk; milk yield; production technology
Abstract:
... This study quantifies and compares greenhouse gas (GHG) emissions of bovine milk production systems in 38 countries representing 70% of the world's bovine milk production. The analysis was based on the International Farm Comparison Network (IFCN) concept of typical dairy farms and the related globally standardized farms representing 45 dairy regions in 38 countries. Various concepts and coefficien ...
DOI:
10.1016/j.anifeedsci.2011.04.002

4. Can enteric methane emissions from ruminants be lowered without lowering their production?

Author:
C. Grainger; K.A. Beauchemin
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 308-320
ISSN:
0377-8401
Subject:
Helianthus annuus; beef; canola; coconuts; dairy cattle; dietary fat; dietary supplements; enzymes; farm management; farming systems; farms; fatty acids; feeds; greenhouse gas emissions; greenhouse gases; lactation stage; life cycle assessment; linseed; lipid content; livestock production; methane; milk; milk production; sheep; starch
Abstract:
... Methane emissions from ruminant livestock are a contributor to total global anthropogenic emissions of greenhouse gases. We review the most promising dietary and farm system strategies to mitigate enteric CH₄ emissions from ruminants, and their potential effects on animal production. Dietary supplementation with fat is the most promising dietary strategy, but the milk production and composition re ...
DOI:
10.1016/j.anifeedsci.2011.04.021

5. Comparison of methane production between C3 and C4 grasses and legumes

Author:
H. Archimède; M. Eugène; C. Marie Magdeleine; M. Boval; C. Martin; D.P. Morgavi; P. Lecomte; M. Doreau
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 59-64
ISSN:
0377-8401
Subject:
cold zones; covariance; crude protein; databases; digestibility; emissions; feeds; foods; grasses; greenhouse gases; in vivo studies; legumes; meta-analysis; methane production; neutral detergent fiber; organic matter; ruminants
Abstract:
... A meta-analysis was conducted to compare effects of C4 and C3 grasses as well as warm and cold climate legumes on CH₄ production of ruminants. For this purpose, a database was built using 22 in vivo studies containing 112 observations with 58 C3 grasses, 28 C4 grasses, 26 cold legumes and 12 warm legumes. Neutral detergent fibre (NDF), crude protein (CP) and total tract organic matter (OM) digesti ...
DOI:
10.1016/j.anifeedsci.2011.04.003

6. Dietary linseed and starch supplementation decreases methane production of fattening bulls

Author:
M. Eugène; C. Martin; M.M. Mialon; D. Krauss; G. Renand; M. Doreau
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 330-337
ISSN:
0377-8401
Subject:
Charolais; barley straw; body weight; bulls; diet; emissions; energy intake; feed intake; feeds; finishing; foods; greenhouse gases; linseed; methane production; organic matter; pH; starch; sulfur hexafluoride; volatile fatty acids
Abstract:
... The objective was to determine CH₄ production from bulls fed a feedlot diet rich in either fibre (F) or starch and lipid (SL) over the fattening period. Fifty six Charolais bulls (259±9.4d of age and 339±8.2kg live weight (LW)) were allocated randomly to one of two diets and blocked with 4 replicate pens/diet based on LW and age, and fattened for up to 18 months. Both treatments included barley st ...
DOI:
10.1016/j.anifeedsci.2011.04.023

7. Does the complexity of the rumen microbial ecology preclude methane mitigation?

Author:
André-Denis G. Wright; Athol V. Klieve
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 248-253
ISSN:
0377-8401
Subject:
Archaea; Protozoa; additives; bacteria; ecosystems; emissions; feeds; fermentation; foods; fungi; global warming; greenhouse gases; isotopes; livestock; methane; methane production; microbial ecology; molecular biology; rumen; small cereal grains; viruses
Abstract:
... Ruminant livestock are responsible for production of a portion of greenhouse gases, particularly methane (61Tg/yr) which is believed to contribute to global warming and climate change. Methane is an end product of fermentation of plant material by the microbial ecosystem in the rumen. Methanogenesis is undertaken by methanogenic archaea and is a mechanism by which H₂ is removed from fermentation i ...
DOI:
10.1016/j.anifeedsci.2011.04.015

8. Effect of antibiotics on methane arising from anaerobic digestion of pig manure

Author:
J.C. Shi; X.D. Liao; Y.B. Wu; J.B. Liang
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 457-463
ISSN:
0377-8401
Subject:
adsorption; anaerobic digestion; digestion; methane; microorganisms; pig manure; tetracycline
Abstract:
... Laboratory scale digesters were used to study effects of tetracycline (TC) and sulfamethoxydiazine (SMD) on CH₄ production from anaerobic digestion of pig manure at 25°C. Tetracycline and SMD were added to digesters at concentrations of 0, 25 and 50mg/L. Results show a delay in initial production of CH₄ and lower daily CH₄ production peaks with addition of antibiotics compared to control. Cumulati ...
DOI:
10.1016/j.anifeedsci.2011.04.033

9. Effect of fibre- and starch-rich finishing diets on methanogenic Archaea diversity and activity in the rumen of feedlot bulls

Author:
M. Popova; C. Martin; M. Eugène; M.M. Mialon; M. Doreau; D.P. Morgavi
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 113-121
ISSN:
0377-8401
Subject:
Archaea; Protozoa; RNA-directed DNA polymerase; bulls; diet; digestion; emissions; feedlots; feeds; finishing; foods; genes; greenhouse gases; hydrogen; linseed; lipid composition; methane; methane production; methanogens; prediction; rumen; starch
Abstract:
... Methanogenesis plays an important role in maintaining low hydrogen partial pressure in the rumen and consequently in feed digestion. Diet composition and lipid supplementation are known to influence the extent of methane (CH₄) production in ruminants. However, the impact of diet composition on rumen methanogens is poorly understood. This study examined CH₄ production and methanogen community abund ...
DOI:
10.1016/j.anifeedsci.2011.04.060

10. Effects of Leucaena condensed tannins of differing molecular weights on in vitro CH4 production

Author:
X.D. Huang; J.B. Liang; H.Y. Tan; R. Yahya; Y.W. Ho
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 373-376
ISSN:
0377-8401
Subject:
Leucaena; animal nutrition; bioactive properties; chemical structure; emissions; feeds; foods; greenhouse gases; liquid chromatography; mass spectrometry; molecular weight; polymerization; proanthocyanidins; ruminants
Abstract:
... Condensed tannins (CT) exhibit nutritional, environmental and veterinary benefits in ruminant production. It is known that effects of CT on animal nutrition is multi-factorial, but their molecular weight (MW) and/or chemical structures play a key role in their biological activity. The average MW of five CT fractions obtained from Leucaena hybrid-Bahru (LLB) was determined using mass quadrupole tim ...
DOI:
10.1016/j.anifeedsci.2011.04.026

11. Effects of dietary crude protein and phytase–xylanase supplementation of wheat grain based diets on energy metabolism and enteric methane in growing finishing pigs

Author:
Jacob K.A. Atakora; Soenke Moehn; Jason S. Sands; Ronald O. Ball
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 422-429
ISSN:
0377-8401
Subject:
amino acids; animal performance; body weight; carbon dioxide; crude protein; diet; digestibility; digestible energy; energy balance; energy content; energy metabolism; feed intake; feeds; foods; gas exchange; gilts; greenhouse gas emissions; greenhouse gases; metabolizable energy; methane; nutrient content; nutrient utilization; phytases; wheat; xylanases
Abstract:
... Dietary crude protein (CP) reduction plus enzymes (e.g., phytase, xylanase) addition to pig diets can decrease nutrient excretion, and may reduce greenhouse gas emissions due to higher nutrient digestibility. Our objective was to study effects of CP reduction and phytase and/or xylanase inclusion in pig diets on enteric CH₄ production, animal performance, dietary metabolizable energy content and n ...
DOI:
10.1016/j.anifeedsci.2011.04.030

12. Effects of forage chicory (Cichorium intybus) and perennial ryegrass (Lolium perenne) on methane emissions in vitro and from sheep

Author:
X.Z. Sun; S.O. Hoskin; S. Muetzel; G. Molano; H. Clark
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 391-397
ISSN:
0377-8401
Subject:
Cichorium intybus; Lolium perenne; chicory; crude protein; emissions; energy requirements; feeds; foods; greenhouse gases; metabolizable energy; methane; neutral detergent fiber; organic matter; production technology; spring; summer; wethers
Abstract:
... Published reports of CH₄ yields as g CH₄/kg dry matter (DM) intake suggest that emissions from sheep fed fresh forage chicory (Cichorium intybus) are about 30% lower than from those fed fresh ryegrass. In this study, 2 year old wethers (16; 54±3.8kg liveweight) were fed either mature chicory or perennial ryegrass at 1.3 times maintenance metabolisable energy requirements in the late spring/early s ...
DOI:
10.1016/j.anifeedsci.2011.04.027

13. Effects of mechanical separation on GHG and ammonia emissions from cattle slurry under winter conditions

Author:
E. Dinuccio; W. Berg; P. Balsari
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 532-538
ISSN:
0377-8401
Subject:
ammonia; animals; carbon dioxide; cattle manure; farmers; feeds; foods; greenhouse gas emissions; greenhouse gases; land application; nitrous oxide; slurries; soil; soil treatment
Abstract:
... Effects of cattle slurry mechanical separation on CO₂, CH₄, N₂O and NH₃ emissions during slurry management under winter conditions were investigated in a laboratory study. Greenhouse gas (GHG) emissions during storage and soil application of raw cattle slurry by broadcasting of its liquid and solid fractions were assessed. Carbon dioxide was the predominant emission source during storage and soil ...
DOI:
10.1016/j.anifeedsci.2011.04.037

14. Effects of oral nitroethane administration on enteric methane emissions and ruminal fermentation in cattle

Author:
Erin G. Brown; Robin C. Anderson; Gordon E. Carstens; Hector Gutierrez-Bañuelos; Jackson L. McReynolds; Lisa J. Slay; Todd R. Callaway; David J. Nisbet
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 275-281
ISSN:
0377-8401
Subject:
Holstein; body weight; gas emissions; greenhouse gases; metabolizable energy; methane; methane production; oral administration; organic nitrogen compounds; rumen fermentation; steers; volatile fatty acids
Abstract:
... Methane is a potent greenhouse gas and its release to the atmosphere is widely believed to contribute to global warming. Ruminal enteric CH₄ production represents a loss of 2–15% of the animal's gross energy (GE) intake and contributes nearly 20% of US CH₄ emissions. Studies have evaluated the CH₄ inhibiting potential of select short chain nitrocompounds, such as nitroethane, but results demonstra ...
Handle:
10113/57298
DOI:
10.1016/j.anifeedsci.2011.04.017

15. Enteric methane produced by finisher pigs is affected by dietary crude protein content of barley grain based, but not by corn based, diets

Author:
Jacob K.A. Atakora; Soenke Moehn; Ronald O. Ball
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 412-421
ISSN:
0377-8401
Subject:
amino acids; animal performance; barley; carbon dioxide; corn; crude protein; diet; environmental impact; feeds; fiber content; foods; free amino acids; gas exchange; greenhouse gases; heat production; ingredients; metabolizable energy; methane; protein deposition; soybean meal; swine
Abstract:
... Reducing the crude protein (CP) content in pig diets changes its dietary C and fiber content and fiber composition, and may affect CH₄ and CO₂ produced by the pigs. The objective was to study effects of decreasing CP concentration on CH₄ production, C retention efficiency and performance by finisher pigs. Four diets were formulated being: conventional (HP) and CP reduced, amino acid supplemented d ...
DOI:
10.1016/j.anifeedsci.2011.04.029

16. Essential oils and opportunities to mitigate enteric methane emissions from ruminants

Author:
Chaouki Benchaar; Henry Greathead
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 338-355
ISSN:
0377-8401
Subject:
Frangula; antimicrobial properties; cinnamon; emissions; essential oils; fatty acid composition; feeds; foods; garlic; greenhouse gases; horseradish; methane; methane production; microorganisms; oregano; palatability; rhubarb; rumen; rumen fermentation; ruminants; secondary metabolites; thyme; toxicity; volatile fatty acids
Abstract:
... The well documented antimicrobial activity of essential oils has prompted interest in whether these bioactive compounds can be used to selectively inhibit rumen methanogenesis. A number of studies have recently evaluated the ability of essential oils to reduce enteric CH₄ production. Most studies conducted have been in vitro and short term. Essential oils derived from thyme, oregano, cinnamon, gar ...
DOI:
10.1016/j.anifeedsci.2011.04.024

17. Estimating greenhouse gas emissions from New Zealand dairy systems using a mechanistic whole farm model and inventory methodology

Author:
P.C. Beukes; P. Gregorini; A.J. Romera
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 708-720
ISSN:
0377-8401
Subject:
autumn; barley; corn; cows; crops; dairy farming; dry matter intake; excretion; farms; feed conversion; foods; genetic merit; gibberellins; greenhouse gas emissions; greenhouse gases; herds; inventories; lactation; milk; milk production; models; nitrification inhibitors; nitrogen fertilizers; nitrous oxide; oats; pastures; plant growth; reproductive performance; silage; stocking rate; urine; New Zealand
Abstract:
... The strategy for New Zealand dairy farming (DairyNZ, 2009) formulates targets for increased national milk production and a reduction in greenhouse gas (GHG) emissions, but acknowledges these two targets conflict because GHG typically increase with increased milk output. Our objective was to determine if both targets could be achieved by implementing combinations of five mitigations. A farm scale c ...
DOI:
10.1016/j.anifeedsci.2011.04.050

18. Evaluating effects of tannins on extent and rate of in vitro gas and CH4 production using an automated pressure evaluation system (APES)

Author:
Wilbert F. Pellikaan; Elisabetta Stringano; Jan Leenaars; Dick J.G.M. Bongers; Saskia van Laar-van Schuppen; John Plant; Irene Mueller-Harvey
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 377-390
ISSN:
0377-8401
Subject:
Castanea; alfalfa; bottles; dairy cows; desorption; emissions; feeds; fermentation; flight; foods; grapes; green tea; greenhouse gases; in vitro studies; lactation; mass spectrometry; microbial activity; models; polyethylene glycol; proanthocyanidins; rumen; tannins
Abstract:
... An in vitro study was conducted to investigate effects of tannins on extent and rate of gas and CH₄ production using an automated pressure evaluation system (APES). In this study three condensed tannins (CT; quebracho, grape seed, green tea tannins) and four hydrolysable tannins (HT; tara, valonea, myrabolan, chestnut tannins) were evaluated with lucerne as a control substrate. CT and HT were char ...
DOI:
10.1016/j.anifeedsci.2011.04.072

19. Evaluation of rumen methanogen diversity in cattle fed diets containing dry corn distillers grains and condensed tannins using PCR-DGGE and qRT-PCR analyses

Author:
R. Mohammed; M. Zhou; K.M. Koenig; K.A. Beauchemin; L.L. Guan
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 122-131
ISSN:
0377-8401
Subject:
Acacia mearnsii; DNA; Methanobrevibacter; antimicrobial properties; beef; corn; denaturing gradient gel electrophoresis; diet; distillers grains; emissions; ethanol production; genes; greenhouse gases; heifers; methanogens; phylogeny; polymerase chain reaction; proanthocyanidins; ribosomal RNA; rumen
Abstract:
... Condensed tannins (CT) and corn distillers grains from ethanol production have the potential to reduce enteric CH₄ production from ruminants because of their anti-microbial properties and high lipid contents, respectively. However, their effects on the community of rumen methanogens in cattle rumens have not been investigated. Our objective was to evaluate effects of dry corn distillers grain with ...
DOI:
10.1016/j.anifeedsci.2011.04.061

20. Garlic oil and its principal component diallyl disulfide fail to mitigate methane, but improve digestibility in sheep

Author:
F. Klevenhusen; J.O. Zeitz; S. Duval; M. Kreuzer; C.R. Soliva
Source:
Animal feed science and technology 2011 v.166-167 no. pp. 356-363
ISSN:
0377-8401
Subject:
Allium sativum; dietary supplements; digestibility; digestible energy; experimental design; feeds; foods; garlic; greenhouse gases; hay; in vitro studies; methane; palatability; rumen fermentation; sheep
Abstract:
... One focus of current ruminant research is identification of feed supplementation strategies for mitigating enteric CH₄ production that do not impair rumen fermentation. Previous in vitro studies have indicated a potential anti-methanogenic activity of garlic (Allium sativum), garlic oil (GO), and its main compound diallyl disulfide (DADS). In our study, effects of supplementation of a standard hay ...
DOI:
10.1016/j.anifeedsci.2011.04.071