Behavior, sexual maturity and productive traits in gilts reared under different floor area
2014
Kirov, M., Agricultural Institute, Shumen (Bulgaria) | Doychev, V., Thrakia University, Stara Zagora (Bulgaria)
A trial with 16 gilts of Danubian White breed has been performed. The gilts have been divided into two groups - 8 pigs per group equal by origin, age and live weight. The experiment has been performed during the spring on 2012 year. The gilts from I group have been kept on floor area of 1.5 m2/head and the gilts from II group have been kept on floor area of 2.5 m2/head. Growth of gilts, age at first heating, back fat thickness, MLD thickness, carcass meat percent, age at first heating, behavior of gilts - movement, lying and feeding time during pregnancy, number of live born and weaned pigs per sow have been controlled. The gilts kept on floor area of 2.5 m2/head have reached sexual maturity at an average age of 178,71 days, while their sisters kept on floor area of 1.5 m2/head at an average age of 199,50 days – 20,79 days later - P0.001. The gilts kept in larger floor area had thinner back fat, more meat in the carcass, have moved more, have lied less, had more live born and weaned pigs.
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Эту запись предоставил Institute of Agricultural Economics