Reducing pig mortality through supervision during the perinatal period.
Reducing pig mortality through supervision during the perinatal period.
复制标题
通过围产期监督降低猪死亡率。
DOI：
10.2527/1995.73123543x
复制
发表时间：
1995
影响因子：
3.3
通讯作者：
V. King
中科院分区：
文献类型：
--
作者：
P. Holyoake;G. Dial;T. Trigg;V. King
在一个商业养猪场进行了一项研究，以探讨降低围产期死亡率的方法。在12周期间，251头母猪和后备母猪随机分为4个处理组，采用2 × 2因子设计：1)监督/诱导组，2)监督/非诱导组，3)无监督/诱导组，4)无监督/非诱导组。在监督下，连续观察母猪组及其产仔至少3小时，直到分娩后第3天。用250微克氯前列醇注入外阴-前庭粘膜诱导分娩。有监督组断奶猪数（10.17头/窝）较无监督组（9.44头/窝）显著增加（P = 0.012）。这一增长是由于死产猪数量和活产猪死亡率的减少（P = .001） （P = .026）。后者是由于死亡猪较少（P = 0.003）。诱导对无监护组围生期猪的死亡率没有影响。诱导母猪的平均产仔数为。比非诱导母猪早43 d （P = 0.029）。前列腺素治疗至分娩期平均间隔23.87 h （SD = 10.96）。本研究结果表明，控制产仔系统，加上良好的监管，可以提高猪的成活率。财务分析表明，由于在产房中增加了劳动力，猪的存活率得到了提高，这种降低断奶前死亡率的方法是提高商业养猪场盈利能力的可行选择。
A study was undertaken on a commercial swine farm to investigate methods of reducing perinatal mortality. During a 12-wk period, 251 sows and gilts were assigned randomly to one of four treatment groups in a 2 x 2 factorial design: 1) supervised/induced, 2) supervised/non-induced, 3) unsupervised/induced, and 4) unsupervised/non-induced. Supervised groups of sows and their litter were observed constantly for a minimum of 3 h before and until 3 d after farrowing. The onset of farrowing was induced with 250 micrograms of cloprostenol administered into the vulvo-vestibular mucosa. There was an increase (P = .012) in the number of pigs weaned from supervised (10.17 pigs/litter) relative to unsupervised group (9.44 pigs/litter). This increase was due to a reduction (P = .001) in both the number of stillborn pigs and the mortality of live-born pigs (P = .026). The latter resulted from fewer pigs that died (P = .003). Induction did not influence the mortality of pigs in the perinatal period in unsupervised groups. Induced sows farrowed an average of .43 d earlier than non-induced sows (P = .029). The mean interval from prostaglandin treatment to farrowing was 23.87 h (SD = 10.96). The results of this study suggest that a controlled farrowing system, coupled with good supervision, can improve pig survival. Financial analyses, based on improvements in pig survival resulting from additional labor in the farrowing house, suggested that this method of reducing preweaning mortality is a viable option for improving the profitability of commercial pig farms.