Search PubMed⌕ Search

Biomedical subjects

J W Pankey

Publications and source records attributed to J W Pankey.

58 records · Page 4Linked to original sources
PubMed1975

Hygiene in the prevention of udder infections. II. Evaluation of oil-based teat dips.

Oil-based teat dips containing iodine at .5 and 1% were compared in a series of studies with two water-based iodophor products of the same concentration and also with undipped controls. When the two types of products were tested at .5% under conditions of natural infection, the water-based dip was four times more effective than the oil-based dip at preventing Staphylococcus aureus infections. In three subsequent trials teats were experimentally exposed to S. aureus and Streptococcus agalactiae. Five times more S. aureus infections developed in a group dipped with the oil-based dip at 1% iodine with an undipped control yielded no significant difference for S. aureus infections. The 1% iodine water-based product was nine times more effective in preventing S. aureus infections than the 1% oil-based product. Differences in the incidence of S. agalactiae infections were nonsignificant within the individual trials. Though ineffective in preventing udder infections oil-based products were effective in creating a supple condition of teat skin.

Animals↗
PubMed1975

Hygiene in the prevention of udder infections. III. Effectiveness of 59 teat dips for reducing bacterial populations on teat skin.

Fifty-nine teat dips were tested for effectiveness in reducing populations of experimentally applied Streptococcus agalactiae and Staphylococcus aureus on teat skin. The results varied widely among products. Populations of S. agalactiae recovered from dipped teats ranged from a 98.3% reduction to a 147.4% increase as compared to undipped controls. Reductions in recoverable S. aureus ranged from 98.5 to 43.6%. The products yielding the highest germicidal activity did not conform to a consistent pattern in type and concentration of active ingredients, presence or lack of specific emollients, or pH. Approximately 20% of the products yielded a low activity. Each of six oil-based products performed poorly and frequently increased numbers of organisms.

Ammonium Chloride↗
PubMedDate not supplied

Comparative efficacy of dry-cow treatment regimens against Staphylococcus aureus.

Four dry-cow treatment regimens were evaluated against Staphylococcus aureus intramammary infections: 1) high persistency product at drying off and low persistency product 1 to 3 days prepartum; 2) high persistency product at drying off; 3) low persistency product 1 to 3 days prepartum; 4) untreated controls. Treatment 1 was no more efficacious (64.4%) than Treatment 2 (61.3%). Both treatments were significantly different from spontaneous recovery observed in Treatment 4 (41.2%), but not significantly different from Treatment 3 (46.9%). Dry-cow therapy reduced new S. aureus intramammary infections during the dry period by half. Prepartum treatment eliminated more than 90% of new Streptococcus uberis infections.

Journal Article↗