Farmers use Nitrogen (N) to increase forage yields and increase profitability, however, there has been increasing requirements to minimise environmental impact and for this reason N use on farms is under scrutiny. N that is not used in an animal must be excreted as, unlike with energy, there is no capacity to store N. The
Methane (CH4) is mainly formed in the rumen (87-92%) by methanogens which utilise microbially hydrogen produced in the rumen during fermentation of ingested feed. CH4 from animals is measured via gas exchange using flux methods like respiration chambers and marker methods in research trials and is expressed as production per time, per unit of intake (yield)
The New Zealand Feed Manufacturer’s Association (NZFMA) are looking to examine the role of supplemental feeding to dairy cows for reducing environmental impact and effects on animal welfare and production.
Charlotte Westwood BVSc, MANZCFS, PhD, Veterinary Nutritionist; PGG Wrightson Seeds Key drivers for gaining efficiency from high quality forages are getting more lambs finished rather than sold as store, and earlier (which reduces parasite loading), and hogget mating options. Crop options include chicory, plantain, brassicas and irrigated short rotation pastures, with the aim of more
Katie Saunders, Animal Care Team Developer, DairyNZ Things change over time, animal welfare is no different. Over the years there has been more clarity as to what positive animal welfare looks like. The five freedoms of animal welfare have been defined by the Farm Animal Welfare Council: freedom from hunger and thirst, freedom from discomfort,
K. Garrett, A. Greer, C. Logan and P. Gregorini, Lincoln University Hypothesis: Conventional farming aims to meet nutrient requirements of the average animal. Dietary diversity and variety could improve health and welfare, product quality and bring environmental benefits. Methods: 7 rams were allocated each to 1. variety, 2. monotonous mix, 3. monotony ryegrass for 40
Cows utilise different places on a farm quite differently when given access to high country. This is thought to be due to different grazing personalities.