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Effect of various exogenous factors on teat order development in piglets on the sow



Effect of various exogenous factors on teat order development in piglets on the sow



Die Saugordnung der Ferkel an der Sau unter dem Einfluss verschiedener exogener Faktoren: 82



The significance of exogenous factors in the development of teat order by piglets was studied in 32 lactating sows and 259 piglets (127 males and 132 females) divided into three groups: group 1, of five sows, four of which were fed during pregnancy a special diet to promote vitamin E and selenium deficiency, housed in conventional wooden-floored farrowing boxes; group 2, of 15 conventionally fed sows housed in concrete-floored farrowing boxes without straw bedding; group 3, of 12 conventionally fed sows housed in asphalt-floored pens with straw. Teat order was established by 5-7 days after birth, though stabilization of the teat order was delayed by restlessness of the sow and removal of the piglets during the first four days. The absence of bedding (group 2) resulted in injury and death to some piglets. Blood sampling did not influence the development of the teat order. Sex and birth weight had no effect on teat order. The pectoral teats were the most sought after, and the dominant piglets thrived on these. This struggle for the anterior part of the udder was considered to stimulate the release mechanism. Piglets occupying these anterior teats had the highest weight gains because of the greater stimulation of these teats. 32 lactating sows and 259 piglets were divided into 3 groups comprising: (i) 5 sows, 4 of which were fed during pregnancy a special diet to promote vitamin E and Se deficiency, housed in conventional wooden-floored farrowing boxes, (ii) 15 conventionally fed sows housed on concrete-floored farrowing boxes without straw bedding, and (iii) 12 conventionally fed sows housed in asphalt-floored pens with straw. Teat order was established by 5-7 days after birth, although stabilization of the teat order was delayed by restlessness of the sow and removal of the piglets during the 1st 4 days. The absence of bedding (group ii) resulted in injury and death to some piglets. Blood sampling did not influence the development of the teat order. Sex and birth wt. had no effect on teat order. The pectoral teats were the most sought after, and the dominant piglets thrived on these. This struggle for the anterior part of the udder was considered to stimulate the milk release mechanism. Piglets occupying these anterior teats had the highest wt. gains because of the greater stimulation of these teats.

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