Sökning: "weaning to service interval"

Hittade 2 uppsatser innehållade orden weaning to service interval.

1. 1. Causes of variation in litter size in Swedish piglet production

   Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

   Författare :Isabelle Westergren; [2017]
   Nyckelord :litter size; age at first mating; lactation period; weaning to service interval;

   Sammanfattning : Litter size is influenced by a number of different factors including parity number and age at first mating as well as genetic potential and environmental factors such as management and feeding. The aim of this study was to evaluate the effect of age at first farrowing, lactation period and weaning to service interval on subsequent litter size, as well as to obtain descriptive statistics on the variation in litter size over the last few years. LÄS MER

3. 2. Management factors influencing sow productivity in successful Swedish and Danish herds

   Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

   Författare :Sophia Isberg; [2013]
   Nyckelord :Pig; sow; productivity; weaned piglets; piglet; mortality; management; successful;

   Sammanfattning : The number of weaned piglets per sow and year is a good measurement of sow productivity since it is affected by the number of piglets born alive, the pre weaning mortality (i.e. mortality of live born piglets between birth and weaning) and the number of litters per sow and year. LÄS MER