PRODUCTIVITY AND BEHAVIOR OF SOWS IN LEVEL VS SLOPED FARROWING PENS AND CRATES
PRODUCTIVITY AND BEHAVIOR OF SOWS IN LEVEL VS SLOPED FARROWING PENS AND CRATES
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DOI：
10.1093/ansci/68.1.82
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发表时间：
1990
影响因子：
3.3
通讯作者：
J. McGlone;J. Morrow-Tesch
中科院分区：
文献类型：
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作者：
J. McGlone;J. Morrow-Tesch
采用40头杂交母猪，分10个区组，研究了分娩栏型和坡度对母猪产仔性能和行为的影响。两种围栏类型为分娩围栏（2.15 m母猪区加上2.15 x 35 m爬行区）和分娩板条箱（1.5 x 2.15 m）。评价的两个斜率为水平（0%斜率）和8%斜率。为了收集行为数据，在10日龄时使用延时记录器对窝仔样品进行24小时录像。斜率和围栏类型之间的相互作用被检测到断奶猪的数量（P = 0.02），断奶前死亡率（P = 0.01）和由于挤压猪死亡的数量（P = 0.01）。当猪圈水平或板条箱倾斜时，更多的猪被压碎，更少的猪断奶。母猪在倾斜的地板上躺在他们的胸骨更经常（P = .04）比母猪在水平的地板上。母猪坐着的时间与压碎的猪的数量相关（r = .54，P = .05）。在猪圈中为母猪提供更多的空间并没有增加母猪的活动。倾斜猪圈中仔猪死亡率的降低可能归因于母猪休息姿势的变化，而不是为母猪提供更多的运动自由度。
Forty crossbred sows were used in 10 blocks to determine the effects of farrowing pen type and degree of slope on sow-litter performance and behavior. The two pen types were a farrowing pen (2.15 m sow area plus 2.15 x 35 m creep area) and a farrowing crate (1.5 x 2.15 m). The two slopes evaluated were level (0% slope) and 8% slope. To collect behavioral data, a sample of litters was videotaped using time-lapse recorders ror 24 h at 10 d of age. An interaction between slope and pen type was detected for number of pigs weaned (P = .02), percentage preweaning mortality (P = .01) and number of pig deaths due to crushing (P = .01). More pigs were crushed and fewer pigs were weaned when pens were level or when crates were sloped. Sows on sloped floors lay on their sternums more often (P = .04) than sows on level floors. Time sows were sitting was correlated with number of pigs crushed (r = .54, P = .05). Providing more room for the sow in a pen did not increase sow activity. The reduced piglet mortality in sloped pens may be attributed to changes in sow resting postures rather than to providing sows more freedom of movement.