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Table 2 Characteristics of the high productive sow herd

From: An evaluation of gonadotropin-releasing hormone analogue administered to gilts and sows on subsequent reproductive performance and piglet birth weight

 

Herd characteristic

Number of sows

400

Breed

Topigs 20

Batch management system (weeks)

4

Lactation length (weeks)

3

Piglets weaned per sow per year

32.4

Average WEI (days ± SEM)

6.5 ± 0.3

Age of gilts at first insemination (days ± SEM)

270 ± 15

Type of housing for pregnant sows (<4w of gestation)

Individual Stalls

Type of housing for pregnant sows (>4w of gestation)

Pens with groups of 18 sows

Vaccinations of gilts (weeks post arrival in quarantine)

 

 Parvovirus & Erysipelothrix rhusiopathiae

0 – 3

 Escherichia coli

1 – 4

 Atrophic rhinitis

1 – 4

 Porcine Reproductive and Respiratory Syndrome virus

0 – 3

Vaccinations in sows (weeks pre/postpartum)

 

 Parvovirus & Erysipelothrix rhusiopathiae

+2

 Escherichia coli

- 3

 Atrophic rhinitis

- 3

 Porcine Reproductive and Respiratory Syndrome virus

- 7