Precision feeding can significantly reduce lysine intake and nitrogen excretion without compromising the performance of growing pigs

Andretta, Inés; Pomar, C.; Rivest, J.; Pomar, J.; Radünz, J.

doi:10.1017/s1751731115003067

Cited by 66 publications

(58 citation statements)

References 24 publications

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“…1). Detailed performance responses are available in a recently published paper (Andretta et al, 2016). Briefly, feed intake and feed efficiency were similar across treatments.…”

Section: Resultsmentioning

confidence: 99%

“…However, feeding behavior responses did not differ among the treatments in the overall period. Individually feeding growing pigs with daily tailored diets is an effective approach to reduce Lys supply with no effect on the pigs' performance (Andretta et al, 2014(Andretta et al, , 2016. Based on current and previous results, the precision feeding programs may be applied in industrial pig operations without feed ing behavior or performance implications.…”

Section: Resultsmentioning

confidence: 99%

“…The efficiency of protein de position was calculated by dividing the gain of protein (estimated using the values obtained by DXA) by the CP intake. The details of this protocol were described elsewhere (Andretta et al, 2016).…”

Section: Performance and Body Compositionmentioning

confidence: 99%

“…Precision feeding is a modern alternative to take be tweenanimal variation into account, given that pigs are fed individually with diets adjusted in real time accord ing to the pigs' own patterns of feed intake and growth (Pomar et al, 2009;Hauschild et al, 2012). Previous re sults clearly indicate that precision feeding is an effective approach for reducing nutrient excretion while maintain ing the productive performance of pigs (Andretta et al, 2014(Andretta et al, , 2016. Despite its benefits, precision feeding is a new concept, and no previous trials have been conducted to assess the impact of this approach on feeding behavior.…”

Section: Introductionmentioning

confidence: 99%

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Feeding behavior of growing–finishing pigs reared under precision feeding strategies1

Andretta

Pomar

Kipper

et al. 2016

Journal of Animal Science

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The feeding behavior of growing-finishing pigs reared under precision feeding strategies was studied in 35 barrows and 35 females (average initial BW of 30.4 ± 2.2 kg) over 84 d. Five different feeding programs were evaluated, namely a conventional 3-phase program in which pigs were fed with a constant blend of diet A (high nutrient density) and diet B (low nutrient density) and 4 daily phase-feeding programs in which pigs were fed daily with a blend meeting 110, 100, 90, or 80% of the individual Lys requirements. Electronic feeder systems automatically recorded the visits to the feeder, the time of the meals, and the amount of feed consumed per meal. The trial lasted 84 d and the database contained 59,701 feeder visits. The recorded database was used to calculate the number of meals per day, feeding time per meal (min), intervals between meals (min), feed intake per meal (g), and feed consumption rate (feed intake divided by feeding time per meal, expressed in g/min) of each animal. The feeding pattern was predominantly diurnal (73% of the feeder visits). Number of meals, duration of meals, time between meals, feed consumed per meal, and feed consumption rate were not affected by the feeding programs. The females ingested 19% less feed per meal and had a 6% lower feed consumption rate in comparison with the barrows ( < 0.05). Pig feeding behavior was not correlated with diet composition. However, feed efficiency was negatively correlated with amount of feed consumed per meal ( = -0.38, < 0.05) and feed consumption rate ( = -0.44, < 0.05). Feed consumption rate was also negatively correlated with protein efficiency ( = -0.44, < 0.05). Multivariate analysis indicated that feed consumption rate and number of meals per day are the variables related most closely to pig production performance results. Current results indicate that using precision feeding as an approach to reduce Lys intake does not interfere with the feeding behavior of growing-finishing pigs.

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“…1). Detailed performance responses are available in a recently published paper (Andretta et al, 2016). Briefly, feed intake and feed efficiency were similar across treatments.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Performance and Body Compositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Feeding behavior of growing–finishing pigs reared under precision feeding strategies1

Andretta

Pomar

Kipper

et al. 2016

Journal of Animal Science

Self Cite

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“…The impact of Lys supply on ADFI reported in the literature varies. Some studies found that Lys restriction had no impact on consumption (Kamalakar et al, 2009;Zhang et al, 2012;Andretta et al, 2015), whereas other studies observed that consumption decreased (Rodríguez-Sánchez et al, 2011) or even increased (Fabian et al, 2002;Yang et al, 2008). Those differences could have been caused in part by the methods used to formulate the Lys-restricted feeds.…”

Section: Effect Of Lysine Restrictionmentioning

confidence: 99%

Effect of a lysine depletion–repletion protocol on the compensatory growth of growing-finishing pigs1

Cloutier

Létourneau-Montminy

Bernier

et al. 2016

Journal of Animal Science

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The effect of Lys restriction followed by a repletion period on the performance of growing pigs was studied during 3 feeding phases, each lasting 28 d. A total of 47 castrated male pigs (G Performer 8.0 × Fertilis 25 pigs; Genetiporc Inc., Saint-Bernard, QC, Canada; initial BW of 26.7 ± 2.7 kg) were given each d 70% or 100% of their Lys requirements according to 1 of the following 5 sequences: 70-70-70, 70-70-100, 70-100-70, 70-100-100, or 100-100-100 (for each sequence, numbers indicate the Lys supply percentage in phase 1, 2, and 3, respectively). Individual Lys requirements were estimated daily on the basis of each pig's actual BW and feed intake and BW gain patterns obtained by regression using each pig's historical data. At the end of phase 1, the pigs given 100% of their Lys requirements had higher ADFI ( = 0.01), ADG ( < 0.01), and average daily protein deposition ( < 0.01) than did the pigs given 70% of their requirements. Similar results were observed during phases 2 and 3. At the end of phase 2, the pigs in the 70-100 sequence did not display any compensatory response, given that their ADFI, ADG, and average daily protein deposition did not differ from those of the pigs in the 100-100 sequence. Similar results were observed during phase 3. Although no compensatory growth was observed during the growing phases, the fact that the pigs in the 70-100-100 treatment were able to catch up in terms of BW and body protein mass to the pigs in the 100-100-100 sequence could indicate that a small degree of compensation did occur; these research results cannot ascertain that any compensatory growth occurred.

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Smart Poultry Nutrition

Zuidhof

Afrouziyeh

Klein

et al. 2023

Smart Animal Production

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Precision feeding can significantly reduce lysine intake and nitrogen excretion without compromising the performance of growing pigs

Cited by 66 publications

References 24 publications

Feeding behavior of growing–finishing pigs reared under precision feeding strategies1

Feeding behavior of growing–finishing pigs reared under precision feeding strategies1

Effect of a lysine depletion–repletion protocol on the compensatory growth of growing-finishing pigs1

Smart Poultry Nutrition

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