Available phosphorus levels in diets for pigs with high genetic potential for lean meat deposition kept in thermoneutral environment from 15 to 30 kg

Alebrante, Leandro; Donzele, Juarez Lopes; Oliveira, Rita Flávia Miranda de; Saraiva, Alysson; Guimarães, Simone Eliza Facioni; Ferreira, Aloízio Soares

doi:10.1590/s1516-35982011000200013

Cited by 13 publications

(12 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be postulated that the lower gene expression observed in pigs receiving 0.535% compared with those that received 0.321% aP is related to the aP intake. This is in agreement with the performance results of pigs fed different aP levels and kept under thermoneutral environment, reported by Alebrante et al (2011a) who verified that aP levels above 0.461%, which corresponded to a daily aP intake of 5.45 g, affected negatively the performance of the pigs. Thus, pigs receiving 0.535% aP consumed above the requirement compromising the ETC gene expression.…”

Section: Discussionsupporting

confidence: 93%

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Weller

Alebrante

Campos

et al. 2013

Animal

View full text Add to dashboard Cite

The purpose of this study was to evaluate the effect of temperature and different levels of available phosphorus (aP) on the expression of nine genes encoding electron transport chain proteins in the Longissimus dorsi (LD) muscle of pigs. Two trials were carried out using 48 high-lean growth pigs from two different growth phases: from 15 to 30 kg (phase 1) and from 30 to 60 kg (phase 2). Pigs from growth phase 1 were fed with three different levels of dietary aP (0.107%, 0.321% or 0.535%) and submitted either to a thermoneutral (24°C and RH at 76%) or to a heat stress (34°C and RH at 70%) environment. Pigs from growth phase 2 were fed with three different levels of dietary aP (0.116%, 0.306% or 0.496%) and submitted either to a thermoneutral (22ºC and RH at 77%) or to a heat stress (32ºC and RH at 73%) environment. Heat stress decreased (P < 0.001) average daily feed i ntake at both growth phases. At 24°C, pigs in phase 1 fed the 0.321% aP diet had greater average daily gain and feed conversion (P < 0.05) than those fed the 0.107% or 0.535% while, at 34°C pigs fed the 0.535% aP had the best performance (P < 0.05). Pigs from phase 2 fed the 0.306% aP had best performance in both thermal environments. Gene expression profile was analyzed by quantitative real-time polymerase chain reaction. Irrespective of growing phase, the expression of six genes was lower (P < 0.05) at high temperature than at thermoneutrality. The lower expression of these genes under high temperatures evidences the effects of heat stress by decreasing oxidative metabolism, through adaptive physiological mechanisms in order to reduce heat production. In pigs from phase 1, six genes were differentially expressed across aP levels (P < 0.05) in the thermoneutral and one gene in the heat stress. In pigs from phase 2, two genes were differentially expressed across aP levels (P < 0.05) in both thermal environments. These data revealed strong evidence that phosphorus and thermal environments are key factors to regulate oxidative phosphorylation with direct implications on animal performance.Keywords: nutrigenomics, oxidative phosphorylation, pig production, heat stress and animal production, phosphorous levels for pig nutrition ImplicationsData from this study are the first to reveal the effects of different available phosphorus (P) levels in Longissimus dorsi gene expression related to oxidative phosphorylation and its implications on pig performance. Moreover, this study showed the effects of high temperatures on the expression of these genes and how this may alter the physiological response to P. This information will contribute to better understand the role of P in energy metabolism and will bring new insights into the comprehension of the effects of high temperatures on nutritional requirements and mitochondrial function.

show abstract

Section: Discussionsupporting

confidence: 93%

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Weller

Alebrante

Campos

et al. 2013

Animal

View full text Add to dashboard Cite

show abstract

“…Consequently, even in phosphates whose ratio is quite far from 1.60, usually found in bones, pig metabolism tends to fix Ca and P so as to maintain a constant ratio. Saraiva et al (2011) observed greater Ca deposition in bone when available P increased, corroborating our suggestion that a Lewis' acid-base interaction between the cation of the alkaline earth metal (Ca 2+ ) and the phosphate group present in the additives would be a decisive factor for Ca fixation in bone (Moreira et al, 2016).…”

Section: Mineral Composition Of Bonesupporting

confidence: 88%

“…Saraiva et al (2011) also reported that available P did not have a significant influence on P deposition in bones.…”

Section: Mineral Composition Of Bonementioning

confidence: 96%

“…This happens because P atoms in the different chemical compounds can act as Lewis bases for metal cations such as Ca 2+ (Moreira et al, 2016). Alebrante et al (2011) reported an increase in P, Ca and ash contents in bones of growing pigs. In fact, P, Ca and ash levels increased with available P in the diet, provided by the addition of dicalcium phosphate.…”

Section: Mineral Composition Of Bonementioning

confidence: 97%

See 1 more Smart Citation

Bone characteristics of pigs fed different sources of phosphorus

Teixeira

Corassa

Moreira

et al. 2016

Rev Colomb Cienc Pecu

View full text Add to dashboard Cite

SummaryBackground: phosphorus supplementation should help to keep bone integrity and prevent fractures during the development and slaughter of animals. Objective: to evaluate the effect of different phosphorus sources on bone characteristics of pigs. Methods: one-hundred and twelve piglets (28.65 ± 2.82 Kg body weight) were distributed into an 8×2 factorial arrangement (eight sources of phosphorus × two sexes) in blocks in a completely randomized design. The diets were formulated on a total-phosphorus basis, with 0.32 and 0.31% of P for the control diet and 0.56 and 0.42% of P for the other treatments in the growth and finishing phases, respectively. Phosphorus was supplemented as dicalcium phosphate (DCP); mono-dicalcium phosphate (MDCP); triple superphosphate (TSP); single superphosphate (SSP); Catalão-rock phosphate (ROCK); a mixture of sources (MIX); phosphoric acid (PPA); and the control diet (CTR). Results: there was no interaction between phosphorus sources and sex in any of the parameters. Thickness of the compact tissue was the

show abstract

“…Studying the influence of dietary aP on the BP content of pigs from the same genetic and weight range of this study, but kept in a thermoneutral environment (24.5 ºC), Alebrante et al (2011) also observed that the amount of BP increased up to the level of 0.525% aP. Based on these results, we can infer that regardless of the thermal environment to which pigs are exposed, bone mineralization constitutes a priority of the metabolic use of phosphorus.…”

Section: Resultssupporting

confidence: 64%

Available phosphorus for 15- to 30-kg pigs kept in hot environment

Alebrante¹,

Donzele²,

Oliveira³

et al. 2011

R. Bras. Zootec.

Self Cite

View full text Add to dashboard Cite

-This experiment was conducted to determine the requirement of available phosphorus (aP) for pigs kept in hot environment. Seventy-two pigs (36 castrated males and 36 females) with initial weight of 15.10±0.31 kg were allotted in a completely randomized block design with six treatments (0.107, 0.214, 0.321, 0.428, 0.535, and 0.642% of aP), six replicates and two pigs (1 castrated male and 1 female) per experimental unit. Pigs were kept in a hot environment with temperature of 34.1±0.8 ºC. The levels of aP influenced the daily weight gain, which increased quadratically up to the estimated level of 0.477%, and feed conversion, which improved quadratically up to the estimated level of 0.457%. The levels of aP also influenced the content of phosphorus in the bone, which increased quadratically up to the estimated level of 0.529%. The available phosphorus requirement of 15-to 30-kg pigs kept in a hot environment, for the best results of daily weight gain, feed conversion and bone parameters are 0.477, 0.457, and 0.529%, corresponding to the estimated daily available phosphorus intakes of 4.75; 4.55 and 5.27 g, respectively.

show abstract

Available phosphorus levels in diets for pigs with high genetic potential for lean meat deposition kept in thermoneutral environment from 15 to 30 kg

Cited by 13 publications

References 19 publications

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Effect of heat stress and feeding phosphorus levels on pig electron transport chain gene expression

Bone characteristics of pigs fed different sources of phosphorus

Available phosphorus for 15- to 30-kg pigs kept in hot environment

Contact Info

Product

Resources

About