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Page 2 of articles about prolificacy

Genetics-ReproductionAbstract

Altrenogest supplementation during early pregnancy improves swine embryonic development

There is a lack of information about progesterone supplementation during early pregnancy regarding swine embryonic development. The objective was to evaluate the effects of progesterone/progestin supplementation from Day 6 of pregnancy on swine reproductive parameters.

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Genetics-ReproductionArticle

The role of your farm on the sows' reproductive potential (2/2)

What is more important: the farm or genetics?

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Facilities-Equipment Press releases

Big Dutchman: CulinaCup & CulinaFlex pro

Innovative feeding systems for suckling pigs – hygienic, efficient, animal-friendly.

Figure 1. Distribution of the kind of sows, in parity 1 and 6 categorised by the kind of farms considered

Genetics-ReproductionArticle

The role of your farm on the sows' reproductive potential (1/2)

Is it worth to purchase hyperprolific sows for my farm?

NutritionAbstract

Effects of L-proline during early-pregnancy and the sow parity on the birth-weight of piglets

L-proline supplementation during early-pregnancy improves litter size and birth weight in sows with negative energy balance.

Figure 3. Images of weighings at farrowing and differences in size within the same litter.

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ManagementArticle

Are all non-viable piglets, really not viable?

There are casualties in the farrowing unit due to poor colostrum intake but, how many are there really? Are they just being classified as non-viable piglets?

Genetics-ReproductionAbstract

Genome-wide association study for sow lifetime productivity related traits in a Landrace purebred population

A genome-wide association study was performed to identify quantitative trait loci for SLP-related traits. A total of five genome-wide suggestive significant single nucleotide polymorphisms were identified.

NutritionAbstract

Arginine and amino acids supplementation in gestating gilts

Arginine and other amino supplementation in gestating gilts improve farrowing and litter performance in low prolificity sows (≤14 total piglets born).

Litter from a hyperprolific sow. Author: Josep Mª Girvent

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ManagementArticle

How to control piglets during split nursing

The disadvantage of some boxes is that some piglets are too big and lively and jump off easily.

Photos 1 and 2. Left: litter with lack of milk intake. Right: Low-viability piglets with poor milk intake.

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Genetics-ReproductionArticle

Clinical case: Diffuse reproductive problems in high health conditions

The owner contacted us because he has seen a reduction in performance in recent months, although no decline has been identified in any particular parameter. He says that, overall, “the sows are doing worse".

Milk production accounts for 75 to 80% of the total requirements of lactating sows (Picture: Research Facilities, NEPSUI/ UFMG)

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NutritionArticle

How efficient are the current hyper-prolific lactating sows? (1/2)

The study described here was designed to determine if the body tissue mobilization during lactation imposed by feed restriction could affect litter size and sow performance in the subsequent lactation.

Figure 2. The cost of a farrowing room with a double passage is a 10% higher, but it simplifies work because it provides good access to the feed trough and the rear of the farrowing pen.

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Facilities-Equipment Article

The ideal farrowing facilities: number of crates, room size, type of crates... (1/2)

Joan Wennberg discusses the ideal farrowing facilities with Heraclio Corchón and Javier Lorente. They do not always agree, which makes reading this document even more interesting.

Genetics-ReproductionAbstract

Factors for improving reproductive performance of sows and herd productivity in commercial breeding herds

We review critical factors associated with reproductive performance of female breeding pigs, their lifetime performance and herd productivity in commercial herds. The factors include both sow-level and herd-level factors.

Catering for hyperprolificacy

Hyperprolific sows often do not perform as well in Asia as they do elsewhere in the world and this one day conference, Performance2017, was convened to try to find why this was the case.

Graph 3: Average number of stillborn piglets according to parity for litters of less than 13, between 13 and 16 or more than 16 Total Born piglets. Analysis of 93.896 farrowings from hyperprolific sows recorded from October 14 to September 16

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Genetics-ReproductionArticle

Hyperprolific? Yes, but not so much

Sows with more than 16 piglets Total Born (TB) per litter have twice as many stillbirths (SB) as those with 13 to 16 TB litters, and three times more SB than sows farrowing litters smaller than 13 TB.

Genetics-ReproductionAbstract

Using first and second parity number born alive information to estimate later reproductive performance in sows

Early parity number born alive classification effectively predicts later parity performance. Sows classified as high in both parity one and in parity two had larger litters in later parities.

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