Joseph Jacobs

Effects of herbage mass and herbage allowance on bite mass of grazing dairy cows

PS Alvarez-Hess, ML Douglas, MM Wright, N Norbu, K Giri, WJ Wales, JL Jacobs, MJ Auldist

Journal article  |  2021  |  Animal Feed Science and Technology

Dry matter intake (DMI) of herbage is a product of bite rate and bite mass and is a determinant of the performance of grazing rumi..

Using multispectral data from an unmanned aerial system to estimate pasture depletion during grazing

PS Alvarez-Hess, AL Thomson, SB Karunaratne, ML Douglas, MM Wright, JW Heard, JL Jacobs, EM Morse-McNabb, WJ Wales, MJ Auldist

Journal article  |  2021  |  ANIMAL FEED SCIENCE AND TECHNOLOGY

Accurate measurement of pasture depletion and, therefore, dry matter intake (DMI) is fundamental in both research and commercial s..

Image-based high-throughput phenotyping for the estimation of persistence of perennial ryegrass (Lolium perenne L.)-A review

Chinthaka Jayasinghe, Pieter Badenhorst, Joe Jacobs, German Spangenberg, Kevin Smith

Journal article  |  2021  |  GRASS AND FORAGE SCIENCE

Perennial ryegrass (Lolium perenne L.) is considered the most important pasture species in temperate agriculture, with over six mi..

Lipid Oxidation and Colour Stability of Lamb and Yearling Meat (Muscle longissimus lumborum) from Sheep Supplemented with Camelina-Based Diets after Short-, Medium-, and Long-Term Storage

Eric N Ponnampalam, Kym L Butler, Stephanie K Muir, Tim E Plozza, Matthew G Kerr, Wayne G Brown, Joe L Jacobs, Matthew I Knight

Journal article  |  2021  |  ANTIOXIDANTS

This study investigated the impact of feeding pelleted diets containing camelina (Camelina sativa L. Crantz) hay (CAHP) or camelin..

Use of traditional, modern, and hybrid modelling approaches for in situ prediction of dry matter yield and nutritive characteristics of pasture using hyperspectral datasets

Anna L Thomson, Senani B Karunaratne, Amy Copland, Danielle Stayches, Elizabeth Morse McNabb, Joe Jacobs

Journal article  |  2020  |  ANIMAL FEED SCIENCE AND TECHNOLOGY

To optimise grazing livestock nutrition, it is necessary to know both the available dry matter yield and the nutritive characteris..

Understanding the action of muscle iron concentration on dark cutting: An important aspect affecting consumer confidence of purchasing meat

Eric N Ponnampalam, Joe L Jacobs, Matthew Knight, Tim E Plozza, Kym L Butler

Journal article  |  2020  |  MEAT SCIENCE

We investigated the association of muscle iron concentration, in addition to ultimate pH (pHU), on dark meat formation in sheep of..

High-Throughput Ground Cover Classification of Perennial Ryegrass (Lolium Perenne L.) for the Estimation of Persistence in Pasture Breeding

Chinthaka Jayasinghe, Pieter Badenhorst, Joe Jacobs, German Spangenberg, Kevin Smith

Journal article  |  2020  |  Agronomy (Basel)

Perennial ryegrass (Lolium perenne L.) is one of the most important forage grass species in temperate regions of Australia and New..

An alternative approach for sustainable sheep meat production: implications for food security

Eric N Ponnampalam, Matthew Knight, Peter J Moate, Joe L Jacobs

Journal article  |  2020  |  JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY

Background: A pelleted diet containing camelina hay (CAMH) or camelina meal (CAMM) as a supplement along with a control pellet (CO..

Effects of Feeding either Red or White Grape Marc on Milk Production and Methane Emissions from Early-Lactation Dairy Cows

Peter J Moate, Joe L Jacobs, Josh L Hixson, Matthew H Deighton, Murray C Hannah, Greg L Morris, Brigid E Ribaux, William J Wales, S Richard O Williams

Journal article  |  2020  |  ANIMALS

Globally, annual production of grape marc (GM), the residue of skins, seeds and stems remaining after making wine, has been estima..

The Fusion of Spectral and Structural Datasets Derived from an Airborne Multispectral Sensor for Estimation of Pasture Dry Matter Yield at Paddock Scale with Time

Senani Karunaratne, Anna Thomson, Elizabeth Morse-McNabb, Jayan Wijesingha, Dani Stayches, Amy Copland, Joe Jacobs

Journal article  |  2020  |  REMOTE SENSING

This study aimed to develop empirical pasture dry matter (DM) yield prediction models using an unmanned aerial vehicle (UAV)-borne..