Page 4 of articles about prolificacy
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.
Litter size at nursing and maternal parity did not affect future fertility in the gilt
14.7 total born piglets were found both in gilts that were nursed in litters of 9 and of 13 piglets.
Effect of dietary organic and inorganic selenium in hyperovulatory first-parity gilts
Selenium status of gilts is affected by both the quantity and the source of dietary selenium.
The imprinted gene DIO3 is a candidate gene for litter size in pigs
The results of this study indicate a possible association between the imprinted gene DIO3 and female fertility traits in pigs.
Varying creep feed duration affects pre-weaning and post-weaning performance and behavior of piglet and sow
Creep feed initiated from day 5 and 10 reduce diarrhea scores in piglets and the estrus interval in sows.