This study aimed to evaluate the effect of wood shaving bedding on pregnant sows under two housing conditions. Sixty-four animals were distributed into four treatments, each treatment included 54 sows split into three replicates. A 2 x 2 factorial design was used (two types of housing, collective pens (CP) and combined housing (cages + CP CCP); and two types of floor, concrete floor without wood shavings (CFWS-) and concrete floor with wood shavings (CFWS+), allowing establishing the following treatment combinations: CP+CFWS+, CP+CFWS-, CCP+CFWS+, and CCP+CFWS-. Animal behavior, body injuries, reproductive efficiency, and abiotic variables were evaluated. The sows kept on wood shaving bedding presented a higher frequency of standing postures (20.9 and 31.4 for CCP+CFWS- and CCCP+CFWS+ and 20.6 and 39.2 for CP+CFWS- and CP+CFWS+, respectively). The presence of bedding decreased the occurrence of oral stereotypies and the frequency of injuries in the head, neck/shoulder, and side (12.30 and 6.02 for CCP+CFWS- and CCCP+CFWS+, and 8.07 and 5.69 for CP+CFWS- and CP+CFWS+, respectively). The treatments had no effect on stillbirth rates and on the number of piglets born alive, and the number of mummified piglets was higher in CP+CFWS+ than in was in CCP+CFWS-. However, the presence of bedding changed animal activity and decreased the incidence of injuries.
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机译:本研究旨在评估两种饲养条件下刨木垫料对怀孕母猪的影响。将64头猪分配到4个处理组,每个处理组包括54头母猪,分为3个重复组。使用2 x 2因子设计(两种类型的住房,集体围栏(CP)和组合住房(笼子+ CP [CCP]);以及两种类型的地板,无木屑混凝土地板(CFWS-)和有木屑的混凝土地板(CFWS+),允许建立以下处理组合:CP+CFWS+、CP+CFWS-、CCP+CFWS+和CCP+CFWS-。评估动物行为、身体损伤、繁殖效率和非生物变量。使用剃木垫料的母猪站立姿势的频率更高(CCP+CFWS-和CCCP+CFWS+分别为20.9%和31.4%,CP+CFWS-和CP+CFWS+分别为20.6%和39.2%)。床上用品的存在降低了口腔刻板印象的发生率和头部、颈部/肩部和侧面损伤的发生率(CCP+CFWS-和CCCP+CFWS+分别为12.30%和6.02%,CP+CFWS-和CP+CFWS+分别为8.07%和5.69%)。处理对死产率和活产仔猪数量没有影响,CP+CFWS+的木乃伊仔猪数量高于CCP+CFWS-。然而,垫料的存在改变了动物的活动并降低了受伤的发生率。
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