Johansen Markku, Alban Lis, Kjaersgård Helle Dodensig, Baekbo Poul
The National Committee for Pig Production, The Danish Bacon and Meat Council, Vinkelvej 11, DK-8620 Kjellerup, Denmark.
Prev Vet Med. 2004 Apr 30;63(1-2):91-102. doi: 10.1016/j.prevetmed.2004.01.011.
Low piglet weight at weaning implies a loss of income for the farmer and might influence the welfare of the affected animals negatively. The objective of our cohort study was to identify risk factors in the farrowing section associated with average daily weight gain (ADG) of piglets from birth to weaning. The study was done in 3 Danish farrow-to-finish herds and included 581 sows, 277 pens, 814 farrowings, and 8241 piglets. The data were analysed with a linear mixed model where the response was ADG, and sow and litter were random effects. Piglet treatments for arthritis (-38 g per day), diarrhoea (-8 g per day) and other infections (-21 g per day) were the major infectious contributors to lower ADG. Forelimb-skin abrasions on a piglet (-5 g per day), weak pasterns of sows on concrete slats (-34 g per day), suckling a sow with poor milking 3 weeks after farrowing (-14 g per day), low birth weight (-8.4 g per day per 100 g), male compared to female (-4 g per day) also were associated with lower ADG in the suckling period.
断奶时仔猪体重低意味着养殖户收入减少，并且可能对受影响动物的健康产生负面影响。我们队列研究的目的是确定分娩区与仔猪从出生到断奶的平均日增重（ADG）相关的风险因素。该研究在丹麦3个从产仔到育肥的猪场进行，包括581头母猪、277个猪栏、814窝产仔和8241头仔猪。采用线性混合模型分析数据，其中反应变量为ADG，母猪和窝为随机效应。仔猪患关节炎（每天-38克）、腹泻（每天-8克）和其他感染（每天-21克）是导致ADG降低的主要感染因素。仔猪前肢皮肤擦伤（每天-5克）、母猪在水泥板条上时蹄关节无力（每天-34克）、分娩3周后哺乳泌乳差的母猪（每天-14克）、低出生体重（每100克每天-8.4克）、雄性仔猪与雌性仔猪相比（每天-4克）也与哺乳期较低的ADG有关。
