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.
Page 41 of articles about genetics-reproduction
Revealing genetic relationships between compounds affecting boar taint and reproduction in pigs
The main goal of this study was to investigate the relationship between genetic factors involved in the primary boar taint compounds in an attempt to discover ways to reduce boar taint without decreasing fertility-related compounds.
Sow feeding management during lactation (1/2): Feeding during previous gestation
Today sows have a milk production of 8-12 liters/day or more. The challenge of feeding the lactating sow is not new and improvement to the genetic potential of lean and prolific dam lines make this issue of critical importance for any breeding herd.
Effect of parity and number of suckling piglets on milk production of sows
On average, milk production reached 10.7 kg/day.
Anoestrus upon weaning
Short weaning to service interval isn’t always a synonym for good management, since we have to take into consideration not only average number of days, but also the effect on the percentage of distribution after returns.
Monitoring of farrowings (IV): Control systems
It would be so nice if the sows could warn us when there are problems when they are giving birth to their piglets during labour! This seems impossible… Or maybe it is not so.
The impact of PCV2 infection on male reproductive organs of boars
The striking lesion found in the boar reproductive organs was edema of the epididymal head.
Oleate metabolism in pig enterocytes
The high esterification capacity for oleate in the newborn pig intestine preserves the major colostrum fatty acid for delivery to other tissues.
Australia: pork industry ahead on stall free move
The Australian pork industry’s voluntary move away from the use of sow stalls by 2017, is making substantial progress, with around one in three sows now spending their pregnant lives sow stall free.
JSR launch 'Faster Finishing' boar
Pig and Poultry Fair 2012 will see the launch of a keenly anticipated new Sireline, the ‘faster finishing’ JSR Geneconverter 800m Boar, by leading global pig breeders, JSR Genetics.
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.
Thompson's Tip: Consider summer infertility now!
While it may seem early to be discussing summer infertility, many breeding herds on pig farms have predictable dips in fertility associated with seasonal — or unseasonal! — weather
Clinical case: Reproductive failure
There was an increase of repetitions in females (at 17-28 days, cyclic and acyclic, with a repeat rate of 22%) and mucous-like, white to brown (chocolate) vulvovaginal discharge hours after artificial insemination.
Effect of vaccination against gonadotrophin-releasing factor on growth performance, carcass, meat and fat quality of male Duroc pigs for dry-cured ham production
Under the conditions of this study Duroc pigs immunocastrated are suitable for the production
of high quality dry-cured ham.
How do we level litters after delivery? (II) To count or not to count teats, that is the question
In the previous chapter we saw how level litters by size. Now we will see how to do it by number.