Compounds from multilayer plastic bags cause reproductive failures in artificial insemination
This is the first described relationship between reproductive failure and toxic compounds released from plastic bags.
Page 4 of articles about prolificacy
The importance of hyperprolificacy
Achieving a high prolificacy and knowing how to take advantage of it (transform it into weaned piglets) is vital for the productivity of a sow farm.
Swine artificial insemination: which technique to use and how many sperm per dose?
We should be cautious when setting the number of sperm per insemination dose, so the urge to reduce it does not make us use a number that is under the fertility threshold. Something that may be productive and/or profitable for a certain farm may not be so for another farm.
Non-surgical pig embryo transfer is a reality
The procedure is simple, quick and well tolerated by the recipient sows.
Nurse sows (III): Moving sows “backwards”
In the previous piece of advice we saw that obtaining foster sows by moving piglets "forward" had some disadvantages, which are solved by moving the sows "backwards".
Anaemia in the sow: a cohort study to assess factors with an impact on haemoglobin concentration
There is no evidence of a relation between haemoglobin concentration and the number of total born, stillborn or number of piglets alive at three weeks and the next breeding performance.
Rapeseed meal on gestation and lactation diets on the performance of sows and their litters
The inclusion of rapeseed meal until 10% does not affect sow reproductive or litter performance.
n-3 fatty acid supplementation in sows
Feeding n-3 fatty acids to gilts may improve litter growth, but does not affect subsequent reproductive performance.
United Kingdom: wean more pigs to be more profitable
The aim is to help every producer move towards an extra three pigs per sow per year weaned.
Nature is wise: Optimum moment for the mating
The author considers which is the ideal day for the mating and sets out the improvements in the results obtained when weaning on Monday.
How many nurse sows do I need today?
A simple method to facilitate the daily calculation of the nurse sows needed for the correct running of the farrowing quarters in a hyperprolific sows system.
Dietary carbohydrate sources affect plasma glucose, insulin and IGF-I levels in multiparous sows
Plasma insulin could be modulated by dietary carbohydrates in sows.
Developmental factors that influence sow longevity
Those factors that were significantly associated with longevity, regardless of definition, were age at first farrowing, litter size at first farrowing and last farrowing...
Effects of altrenogest treatments before and after weaning on follicular development, farrowing rate, and litter size in sows
The different altrenogest treatments before weaning did not prevent the growth of follicles before weaning and similarly affected subsequent follicle development and fertility.
TOPIGS sows: 28.8 weaned piglets per year
Pig farms with TOPIGS sows produced an average of 28.8 weaned piglets per sow per year in 2011. The top 10% of farms achieved 31.6 weaned piglets per sow per year.