Effect of Dietary Energy Density on Performance and Lean Deposition of Growing-Finishing Pigs

Chu, Licui; Zhang, G.J.; Cai, Chen; Mao, Xiangbing; Qiao, Suyu

doi:10.3923/javaa.2012.665.675

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Campbell et al (1985), as cited by Dourmad et al (1996), observed the maximum N retention in finishing pigs at 3 times ME for maintenance (ME maint ). Chu et al (2012) found that the optimum DE intake for maximum lean deposition in 79 to 106 kg pig is 9. Campbell et al (1985) at 3.1 times ME maint .…”

Section: Protein Retention and Energy Intakementioning

confidence: 99%

126 Efficiency of Utilizing Standardized Ileal Digestible Lys for Whole Body Protein Retention in Pregnant Gilts during Early, Mid and Late Gestation.

Navales

Thaler

Levesque

2018

Journal of Animal Science

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Section: Protein Retention and Energy Intakementioning

confidence: 99%

126 Efficiency of Utilizing Standardized Ileal Digestible Lys for Whole Body Protein Retention in Pregnant Gilts during Early, Mid and Late Gestation.

Navales

Thaler

Levesque

2018

Journal of Animal Science

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“…On the other hand, Chu et al (2012), evaluating DE levels varying from 3,250 to 3,491 kcal kg -1 , observed a linear decrease in LEA with increasing energy densities. In addition to possible differences in the genetic potential for lean meat deposition, the inconsistency of results between the studies may also be related to the LD: ED ratios (1.87, 1.81, 1.74, 1.68, 1.66) in the study of Chu et al (2012), which decreased as DE levels increased and may have limited protein synthesis, resulting in lower LEA values. In the present study, however, the LD: ME ratio was maintained according to the recommendations of Rostagno et al (2011).…”

Section: Resultsmentioning

confidence: 94%

Metabolizable energy levels in diets with high lysine for growing and finishing pigs

Ferreira

Barbosa

Marcolla

et al. 2019

SCA

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The objective of this experiment was to evaluate the effects of metabolizable energy (ME) levels in diets with high digestible lysine concentration on performance, carcass traits, and meat quality of barrows from 95 to 158 days of age. Eighty commercial hybrid barrows (50 ± 1.82 kg) selected for lean meat deposition, were assigned to four dietary treatments (3,150, 3,235, 3,320, and 3,400 kcal EM kg -1 ) in a randomized design with 10 replicate pens per treatment and two pigs per pen. From 95 to 116 days of age, we observed no effects of ME on final body weight (FBW), average daily gain (ADG), metabolizable energy intake (MEI), and feed conversion (F: G). Average daily feed intake (ADFI) decreased linearly with increasing ME levels (Ŷ = 5.79961 -0.00096790X -r 2 = 0.89). From 95 to 137 days of age, no effects of ME were observed on final body weight (FBW), average daily gain (ADG), metabolizable energy intake (MEI), and feed conversion (F: G). Average daily feed intake (ADFI) decreased linearly with increasing ME (Ŷ= 6.1176 -0.001X -r 2 = 0.97). From 95 to 158 days, of age no effects of ME were observed on FBW and ADG. Dietary ME influenced the ADFI and F: G, which decreased linearly with increasing ME concentrations (Ŷ= 8.12951 -0.00149X -r 2 = 0.99; Ŷ= 6.0914 -0.001X -r² = 0.75, respectively). There was a linear increase in loin eye area (LEA) with increasing ME (Ŷ = -29.851 + 0.0207 X -r² = 0.87). Backfat thickness, pH, and temperature, measured at different times after slaughter (0 min, 45 min, 3 h, and 24 h), were not affected by dietary ME. The level of ME also did not affect the meat quality parameters Color L*, Color a*, Color b*, Warner-Bratzler shear force, thaw water losses, cooking water losses, sum of water losses, intramuscular fat content, and TBARS. Diets with 3,400 kcal kg -1 ME, corresponding to 2.75, 2.57, and 2.31 g digestible lysine/Mcal of ME for pigs from 95 to 116, 116 to 137, and 95 to 158 days of age, respectively, resulted in best performance and carcass traits, without negative effects on meat quality.Objetivou-se com este experimento avaliar os efeitos de níveis de energia metabolizável (EM) em rações com alta lisina no desempenho, nas características de carcaça e na qualidade de carne de suínos machos castrados, dos 95 aos 158 dias de idade. Foram utilizados 80 suínos (Agroceres PIC), machos castrados, com peso inicial de 50 ± 1,82 kg. Os animais foram distribuídos em delineamento inteiramente casualizado, com quatro tratamentos (3150 kcal EM kg -1 , 3235 kcal EM kg -1 , 3320 kcal EM kg -1 , 3400 kcal EM kg -1 ), dez repetições e dois animais por unidade experimental, representada pela baia. No período de 95 a 116 dias de idade, não foram observados efeitos dos níveis de EM sobre os parâmetros de desempenho: peso médio final (PMF), ganho de peso médio diário (GPD), consumo de energia metabolizável (CEM) e conversão alimentar (CA). O consumo de ração médio diário (CDR) reduziu de forma linear com o aumento dos níveis de EM da ração (Ŷ= 5,79961 -0,00096790 X -r 2 = 0,89). No período de...

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Regression analysis to predict growth performance from dietary net energy in growing-finishing pigs1

Nitikanchana

Dritz

Tokach

et al. 2015

Journal of Animal Science

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SummaryEnergy concentration in livestock feed is often altered to optimize pig growth performance and feed cost; therefore, an accurate prediction of growth performance as affected by feeding different energy levels is crucial. Data from 41 trials from 17 journal articles, 10 technical memos, and a thesis were used to develop a regression equation to predict ADG or gain to feed (G:F) as influenced by BW and NE content. Linear and quadratic terms of NE, average BW, CP, standardized ileal digestible [SID] lysine, crude fiber, NDF, ADF, fat, and ash, including their interaction terms, were the variables in the regression analysis. Our regression analysis showed that improvements in growth rate and feed efficiency could be obtained by increasing dietary NE across a wide variety of trials with different dietary ingredients and under different environmental conditions, but the magnitude of improvement in growth performances by dietary NE can be minimized if the amino acids are limiting. Regression equations from this paper can be used to predict the influence of dietary NE on ADG and G:F; however, these equations still need validation from growth studies not included in their development.

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Effect of Dietary Energy Density on Performance and Lean Deposition of Growing-Finishing Pigs

Cited by 3 publications

References 6 publications

126 Efficiency of Utilizing Standardized Ileal Digestible Lys for Whole Body Protein Retention in Pregnant Gilts during Early, Mid and Late Gestation.

126 Efficiency of Utilizing Standardized Ileal Digestible Lys for Whole Body Protein Retention in Pregnant Gilts during Early, Mid and Late Gestation.

Metabolizable energy levels in diets with high lysine for growing and finishing pigs

Regression analysis to predict growth performance from dietary net energy in growing-finishing pigs1

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