Consecutive reproductive performance after parity 2 and lifetime performance in sows that had reduced pigs born alive from parity 1 to 2 in Japanese commercial herds

Sasaki, Yosuke; Saito, Hikari; Shimomura, Ai; Koketsu, Yuzo

doi:10.1016/j.livsci.2011.01.017

Cited by 15 publications

(15 citation statements)

References 13 publications

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“…The means overall and for farm of DNBA in this study was low that reported by Sasaki et al, (2011) of 0.5 piglets. The frequencies (%) of the DNBA groups (≤ -5,−4,−3,−2,−1, 0,+1,+2,+3,+4 or ≥ +5 piglets) were 15.…”

Section: Resultscontrasting

confidence: 70%

“…DNBA was calculated by subtracting the number of piglets born alive in the first parity from the number of piglets born alive in the second parity (Sasaki et al 2011). SNBA was defined as the sum of the number of piglets born alive in the first and second parity (Saito et al 2010).…”

Section: Methodsmentioning

confidence: 99%

“…The reduction in litter size at second parity might decrease lifetime productivity (Hoving et al 2011). The decrease or increase in litter size at second parity is binomial trait; however, litter size decrease in parity 2 sows (Sasaki et al 2011). The summed number of pigs born alive in parities 1 and 2 (SNBA) is an alternative measure of prolificacy of sows and it was reported to be related with a reduction of the number of piglets born alive in parity two at the sow level (Saito et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The summed number of pigs born alive in parities 1 and 2 (SNBA) is an alternative measure of prolificacy of sows and it was reported to be related with a reduction of the number of piglets born alive in parity two at the sow level (Saito et al 2010). Furthermore, Sasaki et al (2011) reported the effect of quantitative difference in the number of piglets born alive between parity one and two (DNBA) and SNBA on lifetime piglets born alive, lifetime nonproductive days, and number of parity at culling and piglets born alive per sow per year.…”

Section: Introductionmentioning

confidence: 99%

“…A few studies have reported on the effect of DNBA and SNBA on lifetime productivity of sows (Saito et al 2010, Sasaki et al 2011 and none in tropical conditions. It might be possible to increase reproductive and productive performance of sows and herds by determining the critical value of DNBA and SNBA for sow lifetime performance, which may help in making decisions and choose management practices that increase the amount of pigs born alive in swine production systems.…”

Section: Introductionmentioning

confidence: 99%

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Effect of reduced or increased number of pigs born alive at second farrowing on lifetime productivity of sows in southeastern Mexico

2016

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Effect of reduced or increased number of pigs born alive at second farrowing on lifetime productivity of sows in southeastern MexicoEfecto de la reducción o incremento del número de cerdos nacidos vivos en el segundo parto en la vida productiva de las cerdas en el sureste de México JE Ek-Mex * , JC Segura-Correa, A Alzina-López ABSTRACT. The objective of this study was to determine the effect of the change in litter size between parity one and two (DNBA) and by summed number of pigs born alive in parity one and two (SNBA) on lifetime productivity of sows in four pig farms in the tropics of Mexico. Data from 6,046 sows, with information on lifetime piglets born alive (LBA), length of productive life (LPL), number of parity at culling (NP) and piglets born alive per year (PBY), were used. Sows were categorised into 11 DNBA groups: ≤ -5,-4, -3, -2, -1, 0, +1, +2, +3, +4 and ≥ +5 piglets, and 5 SNBA group: ≤ 17, 18 to 20, 21 to 22, 23 to 25 and ≥ 26 piglets. A positive linear trend was observed for LBA, LPL and PBY for sows that decreased in ≤ 5 piglets to sows that increased in ≥ 5 piglets. Sows with greater SNBA stay longer in the herd and produced more piglets during their productive lifetime. Sows that increased litter size at second parity and those that produce more piglets in their two first parities were more productive.Key words: piglets, second parity, reproduction, sows. RESUMEN.El objetivo de este estudio fue determinar el efecto del cambio en el tamaño de la camada entre el parto uno y dos (DNBA) y por la suma del número de cerdos nacidos vivos en el parto uno y dos (SNBA) sobre la vida productiva de las cerdas en cuatro granjas porcinas en el trópico de México. Se utilizaron los datos de 6.046 cerdas, con información sobre los lechones nacidos vivos por vida productiva (LBA), la duración de la vida productiva (LPL), número de partos a la eliminación (NP) y lechones nacidos vivos por año (PBY). Las cerdas fueron clasificadas en 11 grupos DNBA: ≤ -5, -4, -3, -2, -1, 0, 1, 2, 3, 4 y ≥ 5 lechones, y 5 del grupo SNBA: ≤ 17, de 18 a 20, 21 a 22, 23 a 25 y ≥ 26 lechones. Se observó una tendencia lineal positiva de LBA, LPL y PBY para cerdas que disminuyeron en ≤ 5 lechones a cerdas que aumentaron en ≥ 5 lechones. Las cerdas con mayor SNBA permanecen más tiempo en la granja y produjeron más lechones durante su vida productiva. Las cerdas que aumentaron el tamaño de camada al segundo parto y las que tuvieron más lechones en sus dos primeros partos fueron más productivas.Palabras clave: lechones, segundo parto, reproducción, cerdas.

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Section: Resultscontrasting

confidence: 70%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of reduced or increased number of pigs born alive at second farrowing on lifetime productivity of sows in southeastern Mexico

2016

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Lifetime and per year productivity of sows in four pig farms in the tropics of Mexico

Ek-Mex

Segura-Correa

Alzina-López

et al. 2014

Trop Anim Health Prod

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The objectives of this study were to estimate the lifetime and per year productivity of sows and to determine the effect of some factor on those traits in four pig farms in the tropics of Mexico. Data from 7526 sows for lifetime number of piglets born alive per sow (LBA), lifetime kilograms of piglets at farrowing (LKF), number of piglets born alive per year (NPF/Y), and kilograms of piglets at farrowing per year (KPF/Y); and data from 7230 sows for lifetime number of piglets weaned (LPW), lifetime kilograms of piglets weaned (LKW), number of piglets weaned per year (NPW/Y), and kilograms of piglets weaned per year (KPW/Y) per sow were used. The statistical model for all traits included the fixed effects of farm, year of first farrowing, season of first farrowing, litter size at first farrowing, age at first farrowing, removal reason, simple interactions, and the error term. The means for LBA, LKF, NPF/Y, and KPF/Y were 45.1 piglets, 67.1 kg, 22.7 piglets, and 33.7 kg, respectively. The means for LPW, LKW, NPW/Y, and KPW/Y were 43.2 piglets, 251.9 kg, 21.5 piglets, and 125.1 kg, respectively. All factors were significant for all traits, except for age at first farrowing on LPW and LKW. Sows with large litter sizes and those that farrowed the first time, at an early age, had the highest lifetime and per year productivity. Therefore, more care and better management should be provided to those types of sows to improve the farms profit.

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Second litter syndrome in Iberian pig breed: factors influencing the performance

Sanz-Fernández

Díaz-Gaona²,

Casas-Rosal³

et al. 2022

animal

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Consecutive reproductive performance after parity 2 and lifetime performance in sows that had reduced pigs born alive from parity 1 to 2 in Japanese commercial herds

Cited by 15 publications

References 13 publications

Effect of reduced or increased number of pigs born alive at second farrowing on lifetime productivity of sows in southeastern Mexico

Effect of reduced or increased number of pigs born alive at second farrowing on lifetime productivity of sows in southeastern Mexico

Lifetime and per year productivity of sows in four pig farms in the tropics of Mexico

Second litter syndrome in Iberian pig breed: factors influencing the performance

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