Page 38 of articles about sow

Positioning crates: Alternative options: Aisles both in front and behind the crates, crates on both sides of the aisle (II)

In the last chapter we examined the advantages of positioning crates facing inwards and outwards. Now we are going to explore two other options: Aisles both in front and behind the crates and crates on both sides of the aisle.

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Abstract

Reproductive performance of gilts according to growth rate and backfat thickness at mating

The study evaluated the influence of growth rate (GR) and backfat thickness (BF), at first mating of gilts, on the reproductive performance until the first farrowing and on the variation in birth weight of piglets.

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Abstract

Hyaluronic acid in the female reproductive tract of the pig

Early embryo development requires a dynamic and active uterine environment tailored to the requirements of each embryonic stage. The development of asynchrony between the embryo and uterine environment during embryo transfer has been directly linked with both embryonic loss and abnormal development. Hyaluronic Acid (HA), has been implicated as an important factor in porcine embryo development in vitro, but little data exists on the concentrations of this glycoaminoglycan in the porcine female reproductive tract and its potential application in embryo transfer procedures.

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Abstract

Effect of dose of equine chorionic gonadotrophin on the estrus responses of gilts and weaned sows and effect of the interval between equine chorionic gonadotrophin and luteinizing hormone injections on sow performance

Objectives: To determine estrus and ovulation responses of gilts and sows to different doses of equine chorionic gonadotrophin (eCG), with different intervals between eCG and luteinizing hormone (pLH) injections.

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News

United Kingdom - English breeding herd increases, fattening pigs decreases

In 2010 the number of breeding pigs increased by 1.4% to 427 thousand. The number of fattening pigs decreased by 2% to 3.2 million leading to an overall reduction of 1.6% in the total number of pigs.

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USA - USDA proposes to amend Livestock Exportation Regulations

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) is proposing to amend the livestock exportation regulations to eliminate pre-export tuberculosis and brucellosis testing for goats and breeding swine if the receiving country does not require such testing.

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Canada - Research investment will benefit swine producers

The Government of Canada is investing in an innovative project that will benefit Canadian swine producers and consumers. Coop fédérée will receive up to $80,000 to study and develop feeding recommendations to maximize sow milk production through gestation, ensuring optimal growth of suckling piglets.

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NutritionAbstract

The evaluation of feeding lactating sows on grams of lysine compared to percent of lysine in the diet

Formulating a sow diet based on percent lysine is only effective when total feed intake is known.

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Abstract

Threonine requirement of sows in early, mid- and late gestation

Current NRC (1998) recommendations for amino acids (AA) do not account for different requirements in early vs late gestation due to changes in metabolism; recovery of body tissue from previous lactation, and fetal, gut and mammary growth in late gestation. These increases in gut and mammary tissue and gut mucin suggest that there is a higher requirement for threonine (THR) in late gestation.

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ManagementArticle

Positioning crates: Which is better: facing inwards or outwards? (I)

When designing farrowing rooms, sows can be placed in different ways: facing inwards, facing outwards, with aisles both in front and behind the crate, or on both sides of the aisle.

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ManagementArticle

Farrowing programming III

Next we will consider some aspects that can be taken into account in order to adjust the day to induce farrowing.

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NutritionAbstract

Dietary supplementation with 0.8% L-Arginine between days 0 and 25 of gestation reduces litter size in gilt

Dietary L-Arginine supplementation may negatively affect gilt reproductive performance.

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ManagementArticle

Organization of replacements V

On many farms the introduction of gilts is not homogenous. However, the introduction of a similar number of gilts to each productive batch would be ideal. How can we do this?

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Abstract

Playing and fighting by piglets around weaning on farms, employing individual or group housing of lactating sows

We assessed how piglets play, fighting and biting behaviour before and after weaning were affected by the housing system and weaning age as well as how the three behaviours are related to each other and piglet post-weaning weight gain.

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ManagementArticle

Farrowing programming II

The gestation period in the majority of sows is usually around 113 to 115 days. However, a percentage of sows can farrow normally up to 3 days before or after.

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NutritionAbstract