Are compensatory live weight gains observed in pigs following lysine restriction during the weaner phase?

Taylor, A.E.; Jagger, S.; Toplis, P.; Wellock, I. J.; Miller, H. M.

doi:10.1016/j.livsci.2013.06.021

Cited by 9 publications

(13 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1, although growth rates were different during the challenge period control and PRRSV-infected pigs reached finishing weight at the same time, suggesting the possibility of compensatory growth. Compensatory growth is a phenomenon where pigs accelerate growth after a period of feed or nutrient restriction, although this is not consistently observed ( Mersmann et al, 1987 ; Taylor et al, 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Increased lysine: metabolizable energy ratio improves grower pig performance during a porcine reproductive and respiratory syndrome virus challenge

Schweer

Mendoza²,

Shull³

et al. 2018

Translational Animal Science

View full text Add to dashboard Cite

Porcine reproductive and respiratory syndrome virus (PRRSV) reduces grower pig performance. The amino acid (AA) requirements and lysine:metabolizable energy ratio (Lys:ME) of health-challenged pigs for optimum performance are poorly understood. Two experiments were conducted to evaluate the effect of increasing standardized ileal digestible (SID) Lys:ME (g SID Lys per Mcal ME) on growth performance during a PRRSV challenge. In Exp. 1, a total of 379 barrows (51.3 ± 0.3 kg body weight [BW]) were allotted to one of six diets (1.87 to 3.41 Lys:ME) for a 35-d growth study. In Exp. 2, a total of 389 barrows (29.2 ± 0.23 kg BW) were allotted to one of six diets (2.39 to 3.91 Lys:ME) for a 49-d growth study. These isocaloric diets represented 80% to 130% of National Research Council (NRC) SID Lys requirement. For each experiment, pigs were randomly allotted across two barns of 24 pens each with seven to nine pigs per pen (four pens per diet per health status). On day 0, one barn was inoculated with live PRRSV, one barn sham inoculated (control), and all pigs were started on experimental diets. Pen growth performance and feed intake were recorded weekly and gain-to-feed ratio (G:F) was calculated. Breakpoint analysis was used to determine the Lys:ME that maximized average daily gain (ADG) and G:F over the 35 or 49-d test periods for Exp. 1 and 2, respectively. In Exp. 1, increasing Lys:ME increased ADG (quadratic P = 0.01) and G:F (linear and quadratic P = 0.04) in control pigs over 35 d. In PRRSV-infected pigs, ADG and G:F increased linearly with increasing Lys:ME (P < 0.01). The Lys:ME for optimum ADG and G:F during PRRSV challenge was 2.83 and 3.17, respectively, compared to 2.24 and 2.83, respectively, in control pigs using a one-slope broken-line model. In Exp. 2, pigs in the control barn became naturally infected after 21 days post inoculation. Before infection, ADG and G:F increased with increasing Lys:ME in control and PRRSV-infected pigs (linear and quadratic P < 0.05), and optimum ADG and G:F were achieved at 3.02 and 2.92 Lys:ME, respectively, in PRRSV-infected pigs compared to 2.82 and 3.22 Lys:ME, respectively, in control pigs. Over the 49-d period, increasing Lys:ME improved ADG (P < 0.01, linear and quadratic) and G:F (linear P < 0.01) in naturally infected pigs. The response was similar in experimental infection for ADG (P < 0.01, linear and quadratic) and G:F (linear P = 0.01). The optimum ratio for ADG (2.86 vs. 3.12 Lys:ME) and G:F (3.18 vs. 3.08 Lys:ME) were similar between natural and experimental infection. In summary, increasing Lys:ME by 10% to 20% above NRC requirements improved performance and feed efficiency during an experimental and natural PRRSV challenge.

show abstract

Section: Discussionmentioning

confidence: 99%

Increased lysine: metabolizable energy ratio improves grower pig performance during a porcine reproductive and respiratory syndrome virus challenge

Schweer

Mendoza²,

Shull³

et al. 2018

Translational Animal Science

View full text Add to dashboard Cite

show abstract

“…The N intake in light piglets is directly related to the lower values of the N absorbed and retained. This result may have been due to a limited intestinal physical capacity that prevents light piglets from increasing feed intake in relation to heavy piglets, as reported by Taylor et al (17) . The lack of effect of WW on energy metabolizability was also observed by Arnaiz et al (10) , who studied piglets weaned at 4.0 and 6.0 kg, quite close to the WW range used in the present study.…”

Section: Resultsmentioning

confidence: 80%

Effect of Dietary Energy and Weaning Weight on Nitrogen Balance and Energy Metabolizability of Piglets

et al. 2018

View full text Add to dashboard Cite

This study aimed to evaluate the effects of dietary metabolizable energy (ME; 3.40, 3.60, or 3.80 Mcal/kg) and weaning weight (WW; 4.5 ± 0.4 and 6.7 ± 0.5 kg) on nitrogen balance (NB) and gross energy metabolizability in weanling piglets. In total, 32 barrow piglets were individually housed in metabolic cages for 28 d in a 2x3 factorial arrangement with five barrows per treatment. Only light and 3.80 ME and heavy and 3.40 ME/kg treatments had six barrows per treatment each. The diets were formulated to maintain a constant nutrient to ME ratio. Nitrogen balance was evaluated in three periods through total collection of feces and urine. Heavy piglets had 14% greater N intake, absorption, and retention in starter and total periods (P<0.05). The increasing in the levels of dietary ME linearly augmented N intake, absorption, and retention during starter and total periods (P<0.05). The dietary ME levels linearly increased energy metabolizability in all periods (P<0.05). In conclusion, heavy weaned piglets had better efficiency in nitrogen retention. Besides, increasing dietary ME levels can improve the N retention and the metabolizability of dietary energy.

show abstract

“…However, this increase was largely attributed to both an increase in total carcass protein and fat content. Other studies have reported increased back fat thickness and marbling relative to controls following a short term reduction in dietary Lys content (Kerr et al, 1995;Martinez-Ramirez and de Lange, 2005;Kamalaker et al, 2009;Taylor et al, 2013).…”

Section: Effects Of Compensatory Growth On Carcass and Meat Qualitymentioning

confidence: 96%

“…A more economically feasible approach may be to reduce CP in nursery diets for a short period of time. Reducing Lys intake during the nursery phase reduced ADG and G:F in past studies (Wellock et el., 2008;Taylor et al, 2013). This reduction however is often short lived as following a period of AA intake restriction, pigs can exhibit compensatory growth and achieve the same BW and body composition in the same amount of time as unrestricted pigs (Martinez-Ramirez et al, 2008b).…”

Section: The Effects Of Reducing Protein (Lysine) In the Diet On Various Parameters Inmentioning

confidence: 99%

“…same restriction type, length, severity etc.). Taylor et al (2013) conducted four similar trials (each 7 months in length) from March 2008 to December 2011 in which nutritionally restricted pigs were fed diets limiting in Lys for a 3 week period. Over these four trials, compensatory growth in pigs occurred during trials 1 and 2, but not in trials 3 and 4.…”

Section: Type Of Restrictionmentioning

confidence: 99%

See 1 more Smart Citation

227 Compensatory body protein gain in newly weaned pigs

Totafurno

Mansilla

Wey

et al. 2017

Journal of Animal Science

View full text Add to dashboard Cite

Protein sources used in nursery diets are expensive; there is a need to examine alternative feeding strategies to lower production costs. Experiments were conducted to determine the effects of a short term lysine restriction at weaning on pig growth performance and body composition, and the extent of compensatory growth when pigs are then fed adequate amounts of dietary lysine. Pigs were followed until final market weight of 124kg was attained to assess effects of compensatory growth on carcass and meat quality. Short term lysine restriction at weaning reduced growth performance (gains, feed efficiency) and body protein mass while increasing body lipid mass.However, when fed a diet that was no longer limiting in lysine, pigs were capable of achieving compensatory growth with no effects on carcass or meat quality. Short term nutrient restriction may be an effective approach to reduce diet costs without jeopardizing performance and carcass and meat quality.

show abstract

Are compensatory live weight gains observed in pigs following lysine restriction during the weaner phase?

Cited by 9 publications

References 35 publications

Increased lysine: metabolizable energy ratio improves grower pig performance during a porcine reproductive and respiratory syndrome virus challenge

Increased lysine: metabolizable energy ratio improves grower pig performance during a porcine reproductive and respiratory syndrome virus challenge

Effect of Dietary Energy and Weaning Weight on Nitrogen Balance and Energy Metabolizability of Piglets

227 Compensatory body protein gain in newly weaned pigs

Contact Info

Product

Resources

About