Phosphorus nutrition of growing pigs

Zhai, Huan-Chen; Adeola, O.; Liu, Jingbo

doi:10.1016/j.aninu.2022.01.010

Cited by 26 publications

(15 citation statements)

References 143 publications

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“…Growth performance is a key index in growing–finishing pig feeding programs. Satisfaction with various nutritional needs is essential for excellent growth performance [ 19 ]. Many studies have been conducted on whether feeding frequency affects feed conversion efficiency.…”

Section: Discussionmentioning

confidence: 99%

Reduced Meal Frequency Decreases Fat Deposition and Improves Feed Efficiency of Growing–Finishing Pigs

Cao

Tang²,

Diao³

et al. 2022

Animals

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An experiment was conducted to examine the effect of meal frequency on growth performance, nutrient digestibility, carcass quality, and lipid metabolism in growing–finishing pigs. Sixty-four Duroc × Landrace × Yorkshire barrows and gilts (26.40 ± 2.10 kg initial body weight) were used in a 112-d experiment in a randomized complete blocked design. The two treatments were the free-access feed group (FA) and the three meals per day group (M3), respectively. The result showed that the average daily feed intake (ADFI) and F: G of the FA group were significantly higher than that in the M3 group during the whole experiment (p < 0.05). Reducing meal frequency also decreased the concentration of triglycerides and urea nitrogen but increased the concentration of insulin and free fatty acids in the blood (p < 0.05). Reducing meal frequency decreased compositions of backfat, belly, and fatty pieces but increased compositions of ham, longissimus muscle, and lean pieces in the carcass (p < 0.05). Greater enzyme activities of ME and FAS and higher mRNA expression of FAS and PPARγ were found in the LM of FA pigs compared with M3 pigs (p < 0.05). In summary, a lower meal frequency improves feed efficiency by regulating lipid metabolism and reducing fat deposition.

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Section: Discussionmentioning

confidence: 99%

Reduced Meal Frequency Decreases Fat Deposition and Improves Feed Efficiency of Growing–Finishing Pigs

Cao

Tang²,

Diao³

et al. 2022

Animals

Self Cite

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“…This may be a result of the interaction between dietary Ca and P, which forms an indigestible Ca-P complex that precipitates in the intestinal tract of pigs [43,44], but more research is needed to confirm this hypothesis. Most commercial DCP is in the anhydrous form, but (di-)hydration of P molecules may increase the digestibility of P in DCP fed to pigs, because hydrated DCP is more soluble in the intestinal tracts, and thus has a greater digestibility, than the anhydrous form [5,10,[45][46][47].…”

Section: Sttd and Sid Of P In Feed Phosphates Fed To Pigs And Broiler...mentioning

confidence: 99%

“…The concentration of P in cereal grains ranges from 0.18% (polished rice) to 0.38% (triticale), whereas for grain co-products, P concentration ranges from 0.24% (corn gluten meal) to 2.58% (defatted rice bran), and for oilseed meals from 0.52% (palm kernel expellers) to 1.22% (dehulled sunflower meal) [2]. However, up to 92% of total P in plant feed ingredients is phytate-bound [2][3][4], which results in low utilization of P from plants by poultry and pigs [5,6]. Fish meal, meat and bone meal, blood meal, and co-products of milk are the main animal animal-origin ingredients that are used in poultry and swine diets [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Fish meal, meat and bone meal, blood meal, and co-products of milk are the main animal animal-origin ingredients that are used in poultry and swine diets [7][8][9]. Because the P in animal animal-origin ingredients is not bound to phytate, it is highly digestible to pigs whereas P from plants generally has low digestibility [1,5]. However, animal animal-origin ingredients are mostly used for weanling pigs, whereas diets for growing-finishing pigs, sows, and poultry primarily contain plant ingredients.…”

Section: Introductionmentioning

confidence: 99%

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— Invited Review — Mineral composition and phosphorus digestibility in feed phosphates fed to pigs and poultry

Lee¹,

López²,

Stein³

2023

Anim Biosci

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Phosphorus (P) is a macro mineral needed for bone mineralization and cell membrane structure and P is also involved in several fundamental pathways of metabolism in the body. Because of the low concentration and digestibility of P in plant ingredients that are the main components of diets for poultry and pigs, feed phosphates are usually included in diets in addition to the P contributed by plant ingredients. The most widely used feed phosphates in poultry and swine diets are dicalcium phosphate (DCP) and monocalcium phosphate (MCP), but tricalcium phosphate (TCP), monosodium phosphate (MSP), and magnesium phosphate (MgP) may be used as well. Because feed phosphates are mostly produced from rock phosphate, feed phosphates have impurities that contain minerals other than P. Concentrations of P in feed phosphates range from 14.8% (MgP) to 25.7% (MSP). The standardized total tract digestibility (STTD) of P in pigs ranges from 71% (TCP) to 95% (MSP). The STTD of Ca and the standardized ileal digestibility (SID) of P and Ca in feed phosphates fed to pigs and poultry have been determined only in a few experiments. Available data indicate that the STTD of Ca and SID of P in MCP are greater than in DCP in both poultry and pigs, but the SID of Ca is similar between DCP and MCP fed to broilers. Information on mineral concentrations and digestibility values in feed phosphates is needed in diet formulation for pigs and poultry, but if diets are formulated to contain equal concentrations of digestible P and Ca, it is unlikely that animal performance will be impacted by the source of feed phosphates used in the diet.

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“…However, understanding the effects of the inclusion of wheat, broken rice, DDGS, and wheat bran to broilers’ diets are still unclear. There is no doubt that phosphorus in wheat, broken rice, DDGS, and wheat bran were stored primarily in the form of phytic acid [ 3 ], which has been regarded as an anti-nutrient for decades [ 4 ]. Therefore, existing studies suggest that supplementation with feed enzymes, including phytase and xylanase, can enhance the feeds’ utilization by eliminating anti-nutritional factors, and also reducing environmental pollution [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Phytase Supplementation of Four Non-Conventional Ingredients Instead of Corn Enhances Phosphorus Utilization in Yellow-Feathered Broilers

Fang

et al. 2022

Animals

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The present study was conducted to evaluate the effects of unconventional feedstuff such as wheat, broken rice, distillers dried grains with soluble (DDGS), and wheat bran, replacing 15% of the corn in the basal diet and the supplementation of bacterial phytase on nutrition digestibility. A total of 500 yellow-feathered broilers with similar body weights of 1.65 ± 0.15 kg were divided into 10 dietary treatments with 5 replicates per treatment (5 male and 5 females per cage). The AME and AIDE were significantly higher when supplied with phytase (p < 0.01) in the DDGS group. The ileal and total tract digestibility of calcium and phosphorus were significantly increased in the phytase-supplied group (p < 0.001). Additionally, the ileal digestibility of CP was increased when phytase was supplemented (p < 0.001). The results infer that the wheat, broken rice, DDGS, and wheat bran had no negative effect when replacing 15% corn. Supplementing 0.02% phytase in their diets can effectively optimize nutrient digestibility in yellow broilers.

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Phosphorus nutrition of growing pigs

Cited by 26 publications

References 143 publications

Reduced Meal Frequency Decreases Fat Deposition and Improves Feed Efficiency of Growing–Finishing Pigs

Reduced Meal Frequency Decreases Fat Deposition and Improves Feed Efficiency of Growing–Finishing Pigs

— Invited Review — Mineral composition and phosphorus digestibility in feed phosphates fed to pigs and poultry

Phytase Supplementation of Four Non-Conventional Ingredients Instead of Corn Enhances Phosphorus Utilization in Yellow-Feathered Broilers

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