Abstracts - Nutrition

Dietary essential fatty acid supplementation in sow during lactation affects further reproductive performance.

Betaine supplementation at 0.63% and 1.26% tended to increase sperm concentration in the ejaculates by 6% and 13%, respectively.

Collectively, SB supplementation could reduce the rate of gilts return to estrus, alter the composition of colostrum and enhance the growth rate of piglets.

Leaner carcasses are achieved with three-phase feeding than with single diet or multy-phase feeding.

Precision feeding is an effective approach to make pig production more sustainable without compromising growth performance.

Maternal vitamin D3 supplementation improves serum concentration in both sows and piglets but, does not affect their performance.

Dietary CLA enhanced cytotoxicity of peripheral blood lymphocytes perhaps through changing its fatty acid composition.

Enzymatic feather meal may become an alternative protein source for piglet diets.

Unsaturated to saturated fatty acids ratio affects carcass and meat quality.

Zinc and protein sources do not affect Zn bioavailability in gestating sows when they are included in adequate levels.

Zearalenone could promote the autocrine action or expression of the ghrelin gene in piglet ovary, and further accelerate the development of ovaries (follicles).

PUFA, oleic acid and stearic acid are the most accurate predictors of the DE and ME for the main fat sources used in swine.

The use of a yeast cell wall extract reduce the negative impact of low levels of aflatoxin on feed intake in nursery pigs.

A minimum dietary intake of both α-linolenic and linoleic acid is required for the modern lactating sow to achieve a maximum reproductive outcome.

In terms of carcass quality, crude protein and essential amino acids could be reduced in finishing diets.

The administration of an additional injection of 200 mg of gleptoferron at 2-weeks of age increased piglet Hb.

The use of pelleted diets improved feed efficiency but increased pig culls and ulceration but not, if mash and pelled is altered.

Piglet performance at weaning may be affected by the inclusion of vegetal oils susceptible to peroxidation.

Crude glycerine fed in heavy pig diets does not affect carcass and meat quality.

Sow feed intake is limited at high temperature in ad libitum fed sows during lactation but, betaine supplemented sows may show higher feed intake during this period .

The Brix refractometer provides a simple, fast and inexpensive estimation of colostrum IgG in sows.

Orange pulp and carob meal fibre could decrease NH3 y CH4 emissions from slurry.

Duration of water restriction did not affect water consumption on a 24-h basis, nursing behaviour or performance.

No different bioavalilability is observed between dl-Met and l-Met for piglets.