The economic implications of climate‐induced variations in milk production

Tait, Andrew; Renwick, James; Stroombergen, Adolf

doi:10.1080/00288233.2005.9513651

Cited by 14 publications

(9 citation statements)

References 1 publication

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“…The influence of water on milk production is demonstrated by higher levels of milk production in areas of high rainfall (Tait et al, 2005). During a water shortage or water contamination, milk production can be affected by alterations in milk quality or lower production (Chase, 2006).…”

Section: Implication Of Iron In Bovine Nutritionmentioning

confidence: 99%

Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Mann¹,

Duncan²,

Knowlton³

et al. 2013

Journal of Dairy Science

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Implications of water chemistry on milk synthesis are not well described yet water is an important nutrient for dairy cattle. High mineral concentrations (>0.3 mg/kg Fe and others) may be associated with natural levels in ground water, contaminating sources, drought conditions, or storage systems. This study evaluated effects of added iron in bovine drinking water on milk composition (Ca, Cu, Fe, P) measured by inductively coupled plasma mass spectrometry and oxidative stability measured by thiobarbituric acid reactive substances assay for malondialdehyde (MDA), volatile chemistry and sensory analysis (triangle test). Prepared ferrous lactate treatments, corresponding to 0, 2, 5, and 12.5 mg/kg drinking water levels were given abomasally (10 L/d) to 4 lactating dairy cows over 4 periods (1 wk infusion/period) in a Latin square design. Milk was collected (d6 of infusion), processed (homogenized, pasteurized), and analyzed within 72 h of processing and 7 d of refrigerated storage. No differences in MDA (1.46±0.04 mg/kg) or iron (0.22±0.01 mg/kg) were observed in processed milk. Cross effects analysis (treatment*cow) showed significant differences in calcium, copper and iron (P < 0.05).Sensory differences (P < 0.05), in treatment vs. control, suggested iron from water sources contributes to milk flavor changes. A case study with high and low (0.99; 0.014 mg/kg) iron treatments revealed no significant differences (P > 0.05) in mineral composition (0.23±0.06 mg/kg Fe) or MDA (0.77±0.03 mg/kg) of raw milk. Iron added to milk causes changes in oxidation; high levels of iron in bovine drinking water may not have observed effects.iii ACKNOWLEDGEMENTS

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Section: Implication Of Iron In Bovine Nutritionmentioning

confidence: 99%

Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Mann¹,

Duncan²,

Knowlton³

et al. 2013

Journal of Dairy Science

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“…Droughts have serious economic implications for New Zealand (Tait et al 2005). For example, the costs of the drought in 1997-1998 were estimated at $1 billion (Statsm 2007).…”

Section: Introductionmentioning

confidence: 99%

Pasture production under densely planted young willow and poplar in a silvopastoral system

et al. 2008

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New Zealand is subject to summer and autumn droughts that limit pasture growth. The planting of willow and poplar trees is one option used to provide green fodder during drought. However, there is a wide concern that such an option can reduce the overall understorey pasture growth. This study evaluated the comparative establishment and growth of densely planted young willow and poplar and their effects on understorey pasture growth. Two experiments were established for 2 years in Palmerston North and Masterton, North Island, New Zealand. In the first experiment, densely planted willow and poplar significantly reduced understorey pasture growth by 24 and 9%, respectively, mainly due to shade, but coupled with soil moisture deficit in summer. In the second experiment, pasture growth in a willow browse block was 52% of that in open pasture as a result of shade and differences in pasture species composition and management. Willow and poplar survival rates were similar (P [ 0.05) after 2 years of establishment (100 vs. 90.5%, respectively). However, willow grew faster than poplar in height (1.90 vs. 1.35 m), stem diameter (43.5 vs. 32.6 mm), canopy diameter (69 vs. 34 cm) and number of shoots (8.7 vs. 2.3) at the age of 2 years.

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“…A more diverse economy is likely to be more resilient, which will be especially valuable as climate change progresses. The risks from an economy focused on livestock has been seen in the impacts of drought on gross domestic product (Tait, Renwick, and Stroombergen 2005), ripples flowing from the current depression in dairy prices, or instant falls in the New Zealand exchange rate following the botulism scare which affected dairy exports to China. 13 If we simultaneously reduce our demand for fossil fuels, any reduction in the value of exports of livestock products might be matched with a reduction in imports of oil.…”

Section: Key Challenges Identified By the Low-emission Future Dialoguementioning

confidence: 99%

Agricultural Emissions Mitigation in New Zealand: Answers to Questions from the Parliamentary Commisioner for the Environment

Kerr

2016

SSRN Journal

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The economic implications of climate‐induced variations in milk production

Cited by 14 publications

References 1 publication

Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Effects of mineral content of bovine drinking water: Does iron content affect milk quality?

Pasture production under densely planted young willow and poplar in a silvopastoral system

Agricultural Emissions Mitigation in New Zealand: Answers to Questions from the Parliamentary Commisioner for the Environment

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