Long term differentiated phosphorus supply from below to above requirement affects nutrient balance and retention, body weight gain and bone growth in growing-finishing pigs

Sørensen, Kristina Ulrich; Tauson, Anne‐Helene; Poulsen, Hanne

doi:10.1016/j.livsci.2018.03.002

Cited by 27 publications

(34 citation statements)

References 30 publications

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“…Similar to previous reports, the present results showed that the LP supply was not sufficient to achieve the same overall BMD level in the diaphysis of all four studied bones as the MP and HP supplies. This is supported by previous results showing that decreased P supply to pigs reduced body P retention . Furthermore, the lower overall BMD caused by LP was more pronounced in the femur than in the humerus.…”

Section: Discussionsupporting

confidence: 88%

“…In addition, the LP‐induced lower ash, Ca and P contents were more distinct in the femur than in the humerus suggesting a larger metabolic activity in the femur. This negative influence on bone mineralisation is supported by data showing no significant difference in wet weight of humerus and femur with increased P supply; however, low P supply caused lower dry weight of the two bones ( P < 0.01) . Farries et al found that reproducing sows were more likely to mobilise minerals from the bones of the hind legs than from other bones which is supported by the present results.…”

Section: Discussionsupporting

confidence: 87%

“…Throughout the experiment, the pigs were housed individually in pens with free access to water. For further information about animal performance, feed, etc., see Sørensen et al …”

Section: Methodsmentioning

confidence: 99%

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Mineralisation of tubular bones is affected differently by low phosphorus supply in growing‐finishing pigs

2019

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BACKGROUND Phosphorus (P) supply is essential for bone mineralisation. Reduced P may result in osteopenia, whereas excessive P may result in environmental impacts. The objective was to study the long‐term effect of three dietary P levels on net bone mineralisation in growing‐finishing pigs. Eighteen female pigs were fed low P (LP (4.1)), medium P (MP (6.2)) or high P (HP (8.9 g P kg −1 DM)) from 39.7 until 110 kg. Trabecular, cortical and overall bone mineral density (BMD), ash, calcium (Ca) and P were determined after slaughter. RESULTS The LP diet generally reduced the BMD, ash, Ca and P in all bones, though all measures were markedly lowered in femur compared with humerus. The trabecular BMD in LP pigs was only different in the distal section compared to the MP‐fed pigs ( P < 0.05). In addition, ash, Ca and P were lower in the proximal and distal sections. No significant effect of HP was seen. Conclusively, LP caused lower net bone mineralisation, mainly of femur. The trabecular tissue of the distal bones seems to be most metabolically active. CONCLUSIONS The MP level was sufficient for net bone mineralisation. Femur is recommended for studying bone fragility whereas humerus seems useful to study increased P retention. © 2019 The Authors. Journal of the Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 87%

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Mineralisation of tubular bones is affected differently by low phosphorus supply in growing‐finishing pigs

2019

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“…Therefore, deviations from the currently recommended dietary P supply must be carefully considered. Indeed, dietary challenges associated with variable amounts of P have had an impact on bone mineralization and bone microstructure [54,55] and revealed implications on energy metabolism and nutrient utilization [56]. In this context, P serum levels are a primary signal for activating endocrine responses, as thereby several known and yet to be elucidated regulators are addressed.…”

Section: Animal Welfare Aspectsmentioning

confidence: 99%

Bridging Gaps in the Agricultural Phosphorus Cycle from an Animal Husbandry Perspective—The Case of Pigs and Poultry

et al. 2018

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Since phosphorus (P) is an essential element for life, its usage and application across agricultural production systems requires great attention. Monogastric species such as pigs and poultry can significantly contribute to global food security but these animals remain highly dependent on the supply of mineral inorganic P in their feeds. Pig and poultry, which represent 70% of the global meat production, are also major P excretors and thus represent important sources of environmental P inputs. Balancing the P cycle within farming systems is crucial to achieve P sustainable and resilient livestock production. Therefore, the interconnection of animal feed, livestock farming, manure, and soil/aquatic ecosystems requires multidisciplinary approaches to improve P management. With regard to a sustainable agricultural P cycle, this study addresses aspects of feeding strategies and animal physiology (e.g., phase feeding, P conditioning, liquid feeding, phytase supplementation, genetics), soil agroecosystems (e.g., P cycling, P losses, P gains), reuse and recycling (e.g., manure, slaughter waste), measures of farmers' economic performance (e.g., bio-economic models), and P governance/policy instruments (e.g., P quota, P tax). To reconcile the economic and ecological sustainability of animal husbandry, the strategic objective of future research will be to provide solutions for a sufficient supply of high-quality animal products from resource-efficient and economically competitive agro-systems which are valued by society and preserve soil and aquatic ecosystems.

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“…The inclusion of phytase enzymes in low P pig diets can reduce the antinutritional effect of phytate and improve the digestibility of minerals and nutrients and reduce the negative impact of inorganic P excretion to the environment (Shim, Chae, & Lee, ; Singh & Satyanarayana, ). Leg weakness is evident in fast‐growing swine production systems (Stern, Lundeheim, Johansson, & Andersson, ) and can affect the thriftiness of fattening pigs (Sørensen, Tauson, & Poulsen, ). Leg weakness has also been correlated with increased culling percentage in breeding swine (Quinn, ; Serenius & Stalder, ).…”

Section: Introductionmentioning

confidence: 99%

The effect of 25‐hydroxyvitamin D₃ and phytase inclusion on pig performance, bone parameters and pork quality in finisher pigs

Duffy

Kelly

Rajauria

et al. 2018

Animal Physiology Nutrition

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The objective of this study was to investigate the effects of supplementing both phytase and 25-hydroxyvitamin D (25-OH-D₃) on pig performance, nutrient digestibility, carcass characteristics, bone parameters and pork quality in finisher pigs. The experimental design was a 2 × 2 factorial comprising of four dietary treatments. One hundred and twenty pigs (60 male, 60 female) were blocked according to live weight and sex and allocated to the following dietary treatments: low P (4.81 g/kg) diet (basal) (T1); low P diet + phytase (T2); low P diet + 25-OH-D₃ (T3) and low P diet + phytase + 25-OH-D₃ (T4). Pigs supplemented with phytase had a lower average daily feed intake (ADFI) (2.45 kg vs. 2.59 kg; p < 0.05) and lower feed conversion ratio (FCR) (2.74 kg/kg vs. 2.85 kg/kg; p < 0.05) compared to pigs offered the nonphytase diets. Pigs offered phytase diets had a higher (p < 0.05) coefficient of apparent total tract digestibility (CATTD) of ash, phosphorous (P) and calcium (Ca) compared with pigs offered the nonphytase supplemented diets. Pigs offered the 25-OH-D diets had a higher CATTD of N and ash. Pigs offered the phytase diets had increased (p < 0.05) bone DM, ash, Ca, P and density compared to the nonphytase diets. There was a significant interaction (p < 0.05) between phytase and 25-OH-D on cook loss. Pigs offered 25-OH-D had increased cook loss over the basal diet; however, there was no effect on cook loss when phytase and 25-OH-D were offered in combination compared to the phytase only diet. Pigs offered 25-OH-D exhibited higher (p < 0.05) Warner Bratzler shear force values and lower (p < 0.05) pork lightness (L*) surface colorimeter values. In conclusion, there was no benefit to offering a combination of phytase and 25-OH-D on pig performance, bone parameters or pork quality.

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Long term differentiated phosphorus supply from below to above requirement affects nutrient balance and retention, body weight gain and bone growth in growing-finishing pigs

Cited by 27 publications

References 30 publications

Mineralisation of tubular bones is affected differently by low phosphorus supply in growing‐finishing pigs

Mineralisation of tubular bones is affected differently by low phosphorus supply in growing‐finishing pigs

Bridging Gaps in the Agricultural Phosphorus Cycle from an Animal Husbandry Perspective—The Case of Pigs and Poultry

The effect of 25‐hydroxyvitamin D₃ and phytase inclusion on pig performance, bone parameters and pork quality in finisher pigs

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Long term differentiated phosphorus supply from below to above requirement affects nutrient balance and retention, body weight gain and bone growth in growing-finishing pigs

Cited by 27 publications

References 30 publications

Mineralisation of tubular bones is affected differently by low phosphorus supply in growing‐finishing pigs

Mineralisation of tubular bones is affected differently by low phosphorus supply in growing‐finishing pigs

Bridging Gaps in the Agricultural Phosphorus Cycle from an Animal Husbandry Perspective—The Case of Pigs and Poultry

The effect of 25‐hydroxyvitamin D3 and phytase inclusion on pig performance, bone parameters and pork quality in finisher pigs

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The effect of 25‐hydroxyvitamin D₃ and phytase inclusion on pig performance, bone parameters and pork quality in finisher pigs