Personal information

New Zealand

Activities

Employment (2)

AgResearch Ltd: Christchurch, NZ

Employment
Source: check_circle
AgResearch Ltd

Agriculture and Agri-Food Canada: Sherbrooke, QC, CA

2001-08-01 to 2003-07-01
Employment
Source: Self-asserted source
David Pacheco

Education and qualifications (2)

Massey University: Palmerston North, Manawatu-Wanganui, NZ

1996-02-01 to 2000-03-01 | Doctor of Philosophy (Institute of Food Nutrition and Human Health)
Education
Source: Self-asserted source
David Pacheco

Universidad Nacional Autonoma de Mexico: Mexico City, Distrito Federal, MX

1984-10-01 to 1989-08-31 | Medico Veterinario Zootecnista
Education
Source: Self-asserted source
David Pacheco

Professional activities (1)

American Dairy Science Association: Champaign, Illinois, US

Member
Membership
Source: Self-asserted source
David Pacheco

Funding (2)

Tino Rangatiratanga o Rātou Taonga Katoa

2022-10-01 to 2025-09-30 | Grant
Ministry of Business, Innovation and Employment (Wellington, Wellington, NZ)
GRANT_NUMBER:

NUOTN2201

Source: check_circle
New Zealand Ministry of Business, Innovation and Employment

Livestock Genetics and Management To Reduce Farm Environmental Impacts

2018-01-01 to 2025-12-31 | Grant
Ministry of Business, Innovation and Employment (Wellington, Wellington, NZ)
GRANT_NUMBER:

DRCX1701

Source: check_circle
New Zealand Ministry of Business, Innovation and Employment

Works (50 of 63)

Items per page:
Page 1 of 2

Meta-Regression to Develop Predictive Equations for Urinary Nitrogen Excretion of Lactating Dairy Cows

Animals
2023-02 | Journal article | Author
Contributors: M. R. Beck; Cameron Joel Marshall; Konagh Garrett; Terra Campbell; Andrew Foote; Ronaldo Vibart; David Pacheco; Pablo Gregorini
Source: check_circle
Multidisciplinary Digital Publishing Institute

Evaluation of Feed Near-Infrared Reflectance Spectra as Predictors of Methane Emissions from Ruminants

Animals
2022-09 | Journal article | Author
Contributors: Xuezhao Sun; David Pacheco; Grant Taylor; Peter H. Janssen; Natasha M. Swainson
Source: check_circle
Multidisciplinary Digital Publishing Institute

Beef production simulation of nitrate and lipid supplements for pasture and rangeland fed enterprises

Agricultural Systems
2019 | Journal article
EID:

2-s2.0-85059034608

Contributors: McPhee, M.J.; Evered, M.; Andrews, T.; Pacheco, D.; Dougherty, H.C.; Ingham, A.B.; Harden, S.; Crean, J.; Roche, L.; Eastburn, D.J. et al.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Modelling thermodynamic feedback on the metabolism of hydrogenotrophic methanogens

Journal of Theoretical Biology
2019 | Journal article
EID:

2-s2.0-85067184889

Contributors: Lynch, T.A.; Wang, Y.; van Brunt, B.; Pacheco, D.; Janssen, P.H.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Parenteral administration of L-arginine to twin-bearing Romney ewes during late pregnancy is associated with reduced milk somatic cell count during early lactation

Journal of Dairy Science
2019 | Journal article
EID:

2-s2.0-85060754643

Contributors: Sciascia, Q.L.; van der Linden, D.S.; Sales, F.A.; Wards, N.J.; Blair, H.T.; Pacheco, D.; Oliver, M.H.; McCoard, S.A.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Plasma amino acid profiles of dairy heifers grazing pasture, chicory and plantain

New Zealand Journal of Agricultural Research
2019 | Journal article
EID:

2-s2.0-85061066637

Contributors: Rugoho, I.; Edwards, G.; Pacheco, D.; Mccormick, J.; Logan, C.; Cheng, L.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Temporal fermentation and microbial community dynamics in rumens of sheep grazing a ryegrass-based pasture offered either in the morning or in the afternoon

Animal
2019 | Journal article
EID:

2-s2.0-85061997131

Contributors: Vibart, R.E.; Ganesh, S.; Kirk, M.R.; Kittelmann, S.; Leahy, S.C.; Janssen, P.H.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

A meta-analysis comparing four measurement methods to determine the relationship between methane emissions and dry-matter intake in New Zealand dairy cattle

Animal Production Science
2018 | Journal article
EID:

2-s2.0-85058175799

Contributors: Jonker, A.; Green, P.; Waghorn, G.; Van Der Weerden, T.; Pacheco, D.; De Klein, C.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Digestion and nitrogen excretion by Holstein-Friesian cows in late lactation offered ryegrass-based pasture supplemented with fodder beet

Animal Production Science
2018 | Journal article
EID:

2-s2.0-85055511990

Contributors: Waghorn, G.C.; Law, N.; Bryant, M.; Pacheco, D.; Dalley, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Evaluation of a sheep rumen model with fresh forages of diverse chemical composition

Journal of Animal Science
2018 | Journal article
EID:

2-s2.0-85058160690

Contributors: Vetharaniam, I.; Vibart, R.E.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Multi-criteria evaluation of dairy cattle feed resources and animal characteristics for nutritive and environmental impacts

Animal
2018 | Journal article
EID:

2-s2.0-85052913961

Contributors: Van Lingen, H.J.; Fadel, J.G.; Bannink, A.; Dijkstra, J.; Tricarico, J.M.; Pacheco, D.; Casper, D.P.; Kebreab, E.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Comparison of rumen in vitro fermentation of temperate pastures using different batch culture systems

Animal Production Science
2017 | Journal article
EID:

2-s2.0-85014538383

Contributors: Keim, J.P.; Berthiaume, R.; Pacheco, D.; Muetzel, S.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Diurnal variation in urine nitrogen and creatinine concentrations from lactating cows grazing ryegrass-dominant pasture in autumn and late spring-summer

Animal Production Science
2017 | Journal article
EID:

2-s2.0-85020229730

Contributors: Cosgrove, G.P.; Jonker, A.; Lowe, K.A.; Taylor, P.S.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Live weight gain, urinary nitrogen excretion and urination behaviour of dairy heifers grazing pasture, chicory and plantain

Journal of Agricultural Science
2017 | Journal article
EID:

2-s2.0-85009765418

Contributors: Cheng, L.; McCormick, J.; Hussein, A.N.; Logan, C.; Pacheco, D.; Hodge, M.C.; Edwards, G.R.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Milk production and composition, nitrogen utilization, and grazing behavior of late-lactation dairy cows as affected by time of allocation of a fresh strip of pasture

Journal of Dairy Science
2017 | Journal article
EID:

2-s2.0-85019145624

Contributors: Vibart, R.E.; Tavendale, M.; Otter, D.; Schwendel, B.H.; Lowe, K.; Gregorini, P.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Prediction of fleece insulation after shearing and its impact on maintenance energy requirements of Romney sheep

Small Ruminant Research
2017 | Journal article
EID:

2-s2.0-85032857832

Contributors: Cottle, D.J.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Sheep numbers required for dry matter digestibility evaluations when fed fresh perennial ryegrass or forage rape

Animal Nutrition
2017 | Journal article
EID:

2-s2.0-85024362046

Contributors: Sun, X.; Krijgsman, L.; Waghorn, G.C.; Kjestrup, H.; Koolaard, J.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

The AusBeef model for beef production: I. Description and evaluation

Journal of Agricultural Science
2017 | Journal article
EID:

2-s2.0-85026855475

Contributors: Dougherty, H.C.; Kebreab, E.; Evered, M.; Little, B.A.; Ingham, A.B.; Hegarty, R.S.; Pacheco, D.; McPhee, M.J.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

The AusBeef model for beef production: II. sensitivity analysis

Journal of Agricultural Science
2017 | Journal article
EID:

2-s2.0-85026884523

Contributors: Dougherty, H.C.; Kebreab, E.; Evered, M.; Little, B.A.; Ingham, A.B.; Nolan, J.V.; Hegarty, R.S.; Pacheco, D.; Mcphee, M.J.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

A mechanistic model of hydrogen-methanogen dynamics in the rumen

Journal of Theoretical Biology
2016 | Journal article
EID:

2-s2.0-84955455820

Contributors: Wang, Y.; Janssen, P.H.; Lynch, T.A.; Brunt, B.V.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Effect of fresh pasture forage quality, feeding level and supplementation on methane emissions from growing beef cattle

Animal Production Science
2016 | Journal article
EID:

2-s2.0-84984889337

Contributors: Jonker, A.; Muetzel, S.; Molano, G.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Forage brassica: A feed to mitigate enteric methane emissions?

Animal Production Science
2016 | Journal article
EID:

2-s2.0-84958214438

Contributors: Sun, X.; Pacheco, D.; Luo, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Methane emissions changed nonlinearly with graded substitution of alfalfa silage with corn silage and corn grain in the diet of sheep and relation with rumen fermentation characteristics in vivo and in vitro

Journal of Animal Science
2016 | Journal article
EID:

2-s2.0-85047288743

Contributors: Jonker, A.; Lowe, K.; Kittelmann, S.; Janssen, P.H.; Ledgard, S.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Methane emissions changed nonlinearly with graded substitution of alfalfa silage with corn silage and corn grain in the diet of sheep and relation with rumen fermentation characteristics in vivo and in vitro

Journal of animal science
2016 | Journal article
EID:

2-s2.0-84987923190

Contributors: Jonker, A.; Lowe, K.; Kittelmann, S.; Janssen, P.H.; Ledgard, S.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Nitrous oxide emission factors for urine from sheep and cattle fed forage rape (Brassica napus L.) or perennial ryegrass/white clover pasture (Lolium perenne L./Trifolium repens)

Agriculture, Ecosystems and Environment
2016 | Journal article
EID:

2-s2.0-84967224454

Contributors: Hoogendoorn, C.J.; Luo, J.; Lloyd-West, C.M.; Devantier, B.P.; Lindsey, S.B.; Sun, S.; Pacheco, D.; Li, Y.; Theobald, P.W.; Judge, A.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Sampling procedure for the measurement of dissolved hydrogen and volatile fatty acids in the rumen of dairy cows

Journal of Animal Science
2016 | Journal article
EID:

2-s2.0-84975718089

Contributors: Wang, M.; Wang, R.; Janssen, P.H.; Zhang, X.M.; Sun, X.Z.; Pacheco, D.; Tan, Z.L.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

The effect of dietary water soluble carbohydrate to nitrogen ratio on nitrogen partitioning and isotopic fractionation of lactating goats offered a high-nitrogen diet

Animal
2016 | Journal article
EID:

2-s2.0-84946762414

Contributors: Cheng, L.; Edwards, G.R.; Dewhurst, R.J.; Nicol, A.M.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Ultrasonography to investigate the effect of supplementing whole milk with complex carbohydrates and specific amino acids on curd retention in the abomasum of dairy calves

New Zealand Veterinary Journal
2016 | Journal article
EID:

2-s2.0-84969822467

Contributors: Singh, K.; Leath, S.R.; Henderson, H.V.; Molenaar, A.J.; Watson, T.J.; Pacheco, D.; McMahon, C.D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

A modified version of the Molly rumen model to quantify methane emissions from sheep

Journal of Animal Science
2015 | Journal article
EID:

2-s2.0-84975760023

Contributors: Vetharaniam, I.; Vibart, R.E.; Hanigan, M.D.; Janssen, P.H.; Tavendale, M.H.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Administration of exogenous growth hormone is associated with changes in plasma and intracellular mammary amino acid profiles and abundance of the mammary gland amino acid transporter SLC3A2 in mid-lactation dairy cows

PLoS ONE
2015 | Journal article
EID:

2-s2.0-84941952237

Contributors: Sciascia, Q.L.; Pacheco, D.; McCoard, S.A.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Development of an improved representation of rumen digesta outflow in a mechanistic and dynamic model of a dairy cow, Molly

Ecological Modelling
2015 | Journal article
EID:

2-s2.0-84937964763

Contributors: Gregorini, P.; Beukes, P.; Waghorn, G.; Pacheco, D.; Hanigan, M.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Lambs fed fresh winter forage rape (Brassica napus L.) emit less methane than those fed perennial ryegrass (Lolium perenne L.), and possible mechanisms behind the difference

PLoS ONE
2015 | Journal article
EID:

2-s2.0-84925624133

Contributors: Sun, X.; Henderson, G.; Cox, F.; Molano, G.; Harrison, S.J.; Luo, D.; Janssen, P.H.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Nitrous oxide emission factors for urine and dung from sheep fed either fresh forage rape (Brassica napus L.) or fresh perennial ryegrass (Lolium perenne L.)

Animal
2015 | Journal article
EID:

2-s2.0-84923643551

Contributors: Luo, J.; Sun, X.Z.; Pacheco, D.; Ledgard, S.F.; Lindsey, S.B.; Hoogendoorn, C.J.; Wise, B.; Watkins, N.L.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

A constitutive model for the rheological behavior of sheep rumen digesta

IFMBE Proceedings
2014 | Conference paper
EID:

2-s2.0-84928266440

Contributors: Liley, H.; Molano, G.; Hemar, Y.; Pacheco, D.; Suresh, V.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Decreasing methane emissions from ruminants grazing forages: A fit with productive and financial realities?

Animal Production Science
2014 | Journal article
EID:

2-s2.0-84905677005

Contributors: Pacheco, D.; Waghorn, G.; Janssen, P.H.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Identification of amino acids associated with skeletal muscle growth in late gestation and at weaning in lambs of well-nourished sheep

Journal of Animal Science
2014 | Journal article
EID:

2-s2.0-84908269128

Contributors: Sales, F.A.; Pacheco, D.; Blair, H.T.; Kenyon, P.R.; Nicholas, G.; Senna Salerno, M.; McCoard, S.A.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

The effects of fresh forages and feed intake level on digesta kinetics and enteric methane emissions from sheep

Animal Feed Science and Technology
2014 | Journal article
EID:

2-s2.0-84901406316

Contributors: Hammond, K.J.; Pacheco, D.; Burke, J.L.; Koolaard, J.P.; Muetzel, S.; Waghorn, G.C.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

A mathematical model to describe in vitro kinetics of H<inf>2</inf> gas accumulation

Animal Feed Science and Technology
2013 | Journal article
EID:

2-s2.0-84881024702

Contributors: Wang, M.; Janssen, P.H.; Sun, X.Z.; Muetzel, S.; Tavendale, M.; Tan, Z.L.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Deriving fractional rate of degradation of logistic-exponential (LE) model to evaluate early in vitro fermentation

Animal
2013 | Journal article
EID:

2-s2.0-84877139053

Contributors: Wang, M.; Sun, X.Z.; Tang, S.X.; Tan, Z.L.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Increased milk protein synthesis in response to exogenous growth hormone is associated with changes in mechanistic (mammalian) target of rapamycin (mTOR)C1-dependent and independent cell signaling

Journal of Dairy Science
2013 | Journal article
EID:

2-s2.0-84875500007

Contributors: Sciascia, Q.; Pacheco, D.; McCoard, S.A.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Muscle free amino acid profiles are related to differences in skeletal muscle growth between single and twin ovine fetuses near term

SpringerPlus
2013 | Journal article
EID:

2-s2.0-84887304634

Contributors: Sales, F.; Pacheco, D.; Blair, H.; Kenyon, P.; McCoard, S.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Ability of commercially available dairy ration programs to predict duodenal flows of protein and essential amino acids in dairy cows

Journal of Dairy Science
2012 | Journal article
EID:

2-s2.0-84856161699

Contributors: Pacheco, D.; Patton, R.A.; Parys, C.; Lapierre, H.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Effects of feeding strategy on milk production, reproduction, pasture utilization, and economics of autumn-calving dairy cows in eastern North Carolina

Journal of Dairy Science
2012 | Journal article
EID:

2-s2.0-84856167687

Contributors: Vibart, R.E.; Washburn, S.P.; Green, J.T.; Benson, G.A.; Williams, C.M.; Pacheco, D.; Lopez-Villalobos, N.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Methane emissions from sheep fed fresh brassicas (Brassica spp.) compared to perennial ryegrass (Lolium perenne)

Animal Feed Science and Technology
2012 | Journal article
EID:

2-s2.0-84864803968

Contributors: Sun, X.Z.; Waghorn, G.C.; Hoskin, S.O.; Harrison, S.J.; Muetzel, S.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Sheep fed forage chicory (Cichorium intybus) or perennial ryegrass (Lolium perenne) have similar methane emissions

Animal Feed Science and Technology
2012 | Journal article
EID:

2-s2.0-84857448041

Contributors: Sun, X.Z.; Hoskin, S.O.; Zhang, G.G.; Molano, G.; Muetzel, S.; Pinares-Patiño, C.S.; Clark, H.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Initiation and elongation steps of mRNA translation are involved in the increase in milk protein yield caused by growth hormone administration during lactation

Journal of Dairy Science
2009 | Journal article
EID:

2-s2.0-67651163607

Contributors: Hayashi, A.A.; Nones, K.; Roy, N.C.; McNabb, W.C.; Mackenzie, D.S.; Pacheco, D.; McCoard, S.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

A novel concept to reduce nitrogen losses from grazed pastures by administering soil nitrogen process inhibitors to ruminant animals: A study with sheep

Agriculture, Ecosystems and Environment
2008 | Journal article
EID:

2-s2.0-40849130837

Contributors: Ledgard, S.F.; Menneer, J.C.; Dexter, M.M.; Kear, M.J.; Lindsey, S.; Peters, J.S.; Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Stochastic simulation of rumen degradable protein surplus in grazing dairy cows

Animal Feed Science and Technology
2008 | Journal article
EID:

2-s2.0-44349145987

Contributors: Pacheco, D.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

Comparison of net portal absorption with predicted flow of digestible amino acids: Scope for improving current models?

Journal of Dairy Science
2006 | Journal article
EID:

2-s2.0-33846322583

Contributors: Pacheco, D.; Schwab, C.G.; Berthlaume, R.; Raggio, G.; Lapierre, H.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier

What is the true supply of amino acids for a dairy cow?

Journal of dairy science.
2006 | Journal article
EID:

2-s2.0-33645228361

Contributors: Lapierre, H.; Pacheco, D.; Berthiaume, R.; Ouellet, D.R.; Schwab, C.G.; Dubreuil, P.; Holtrop, G.; Lobley, G.E.
Source: Self-asserted source
David Pacheco via Scopus - Elsevier
Items per page:
Page 1 of 2

Peer review (97 reviews for 15 publications/grants)

Review activity for Animal feed science and technology. (4)
Review activity for Animal production science. (12)
Review activity for Animal. (2)
Review activity for Animal. (9)
Review activity for Animals. (1)
Review activity for Crop & pasture science. (1)
Review activity for Grass and forage science. (2)
Review activity for Italian journal of animal science : (2)
Review activity for JDS communications. (6)
Review activity for Journal of agricultural science. (2)
Review activity for Journal of dairy science. (30)
Review activity for Journal of the science of food and agriculture. (18)
Review activity for JSFA reports. (1)
Review activity for New Zealand journal of agricultural research (5)
Review activity for Nutrient cycling in agroecosystems. (2)