CASE STUDY: National survey of barriers related to precision phosphorus feeding
LITERATURE CITED (32)
- et al.
Effects of fungal phytase addition, formaldehyde treatment and dietary concentrate content on ruminal phosphorus availability
Anim. Feed Sci. Technol.
(2002) - et al.
Phosphorus availability of oilseed meals determined by the apparent faecal digestibility technique
Anim. Feed Sci. Technol.
(2003) - et al.
Phytate phosphorous intake and disappearance in the gastrointestinal tract of high producing dairy cows
J. Dairy Sci.
(1986) - et al.
Phosphorus feeding levels and critical control points on dairy farms
J. Dairy Sci.
(2003) - et al.
The effect of steam flaked or ground corn and supplemental phytic acid on ruminal phytase activity and P balance in lactating cows
J. Dairy Sci.
(2003) - et al.
Efficiency of use of imported nitrogen, phosphorus, and potassium and potential for reducing phosphorus imports on Idaho dairy farms
J. Dairy Sci.
(2006) - et al.
Phosphorus partitioning during early lactation in dairy cows fed diets varying in phosphorus content
J. Dairy Sci.
(2002) - et al.
True absorption of calcium and phosphorus from corn silage fed to nonlactating, pregnant dairy cows
J. Dairy Sci.
(1999) - et al.
Disappearance of phosphorous in phytate from concentrates in vitro from rations fed to lactating dairy cows
J. Dairy Sci.
(1992) - et al.
Effects of concentration of dietary phosphorous on amount and route of excretion
J. Dairy Sci.
(1992)
Heat treatment of rapeseed meal increases phytate flow into the duodenum of sheep
Anim. Feed Sci. Technol.
Whole-farm phosphorus balance on western dairy farms
J. Dairy Sci.
Cost of reducing protein and phosphorus content of dairy rations
The Prof. Anim. Sci.
Auditing and assessing nutrient management for water quality on animal feeding operations
The Prof. Anim. Sci.
Milk production, reproductive performance, and fecal excretion of phosphorus by dairy cows fed three amounts of phosphorus
J. Dairy Sci.
Concentration of phytic acid in faeces of calves fed starter diets
Acta Vet. (Brno.)
Cited by (8)
A survey of Canadian dairy nutritionists to assess current trace element formulation practices
2023, Journal of Dairy SciencePhosphorus feeding practices, barriers to and motivators for minimising phosphorus feeding to dairy cows in diverse dairy farming systems
2021, AnimalCitation Excerpt :Dairy farming systems in North-western and central European countries are similar to Great Britain (GB), which operate large specialised dairy farms of high yielding cows along with a wide assortment of pasture-based and housed systems (March et al., 2014; Augère-Granier, 2018). However, most of the research into minimising P feeding, which is based in the US where housed systems are common (Dou et al., 2003; Harrison et al., 2012), may not be relevant for many countries operating diverse dairy farming systems primarily because housed and pasture-based systems contribute to eutrophic risk differently from one another. Relatively high potential of P loss per ton of milk solids and per hectare of farmland makes the housed systems a greater eutrophic risk than pasture-based systems, with the main contributor to eutrophic risk being the use of greater amount of concentrate feed leading to the generation of P-rich manure, whereas the eutrophic risk of housed and pasture-based systems are more similar on a total farmland basis, due to P loss from relatively large agricultural area following excreta deposition onto the land by grazing cattle and land application of fertiliser to support the growth of home-grown forages in pasture-based systems (O'Brien et al., 2012).
A survey of feeding management practices and by-product feed usage on Pennsylvania dairy farms
2016, Professional Animal ScientistShort communication: Comparison of predicted dietary phosphorus balance using bioavailabilities from the NRC (2001) and Virginia Tech model
2016, Journal of Dairy ScienceCitation Excerpt :To minimize the risk of underfeeding P, producers will often add supplemental inorganic P to the diet. In a survey conducted by Harrison et al. (2012), 54.8% of the respondents replied that the greatest barrier to reducing P in the diet was the uncertainty of P content of feedstuffs, and 69.7% indicated that knowing the P availability of ingredients from different sources would assist them in diet formulation. The current requirement system for dairy (NRC 2001) applies common P bioavailability factors across broad classes of ingredients (0.64 for forages and 0.70 for concentrates) with more diversity for individual mineral supplements.
Parameterization of a ruminant model of phosphorus digestion and metabolism
2015, Journal of Dairy ScienceCitation Excerpt :Precisely matching dietary P to animal requirements is essential if excretion is to be minimized. Based on a national survey (Harrison et al., 2012), 99% of responding nutritionists feed less P now than they did 5 yr earlier. However, uncertainty regarding feed P availability is a barrier to further decreases.