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- Schneider, J. F.; Nonneman, D. J.; Wiedmann, R. T.; Vallet, J. L.; Rohrer, G. A.
- Journal of animal science 2014 v.92 no.9 pp. 3792-3803
- sows, etc ; DNA; chromosomes; estrogen receptors; genes; genetic variance; genetic variation; inhibin; marker-assisted selection; ovulation; quantitative trait loci; reproductive efficiency; single nucleotide polymorphism; Show all 13 Subjects
- ... Reproductive efficiency has a great impact on the economic success of pork production. Ovulation rate is an early component of reproduction efficiency and contributes to the number of pigs born in a litter. To better understand the underlying genetics of ovulation rate, a genomewide association study was undertaken. Samples of DNA were collected and tested using the Illumina Porcine SNP60 BeadChip ...
- Mack, L. A.; Lay, D. C.; Jr., S. D.; Eicher, A. K.; Johnson, B. T.; Richert, E. A.
- Journal of animal science 2014 v.92 pp. 530-548
- sows, etc ; animal stress; cortisol; farrowing rate; gestation period; head; litter size; liveweight gain; males; mortality; piglets; pregnancy; progeny; reproductive performance; sex ratio; social behavior; synthetic glucocorticoids; testosterone; Show all 18 Subjects
- ... In many mammalian species, prenatal stress masculinizes female and feminizes male offspring impairing their reproductive capacity. Regrouping gestating sows is a common, stressful production practice, but its impact on the developing pigs of the sow is not fully known. This study examined the effects of regrouping gestating sows and the administration of exogenous glucocorticoids on the growth and ...
- Oliver, W. T.; Wells, J. E.; Maxwell, C. V.
- Journal of animal science 2014 v.92 no.11 pp. 4927-4934
- sows, etc ; C-reactive protein; antimicrobial properties; blood; body fat; chlortetracycline; diet; farrowing pens; feed conversion; feed intake; growth performance; haptoglobins; immune response; lipids; litters (young animals); long term effects; lysozyme; rearing; swine feeding; tiamulin; tumor necrosis factor-alpha; weaning; Show all 22 Subjects
- ... Lysozyme is a 1,4-ß-N-acetylmuramidase that has antimicrobial properties. The objective of this study was to determine the effect of lysozyme and antibiotics on growth performance and immune response during an indirect immune challenge. Two replicates of 600 pigs each were weaned from the sow at 26 d of age, blocked by litter and sex, and then randomly assigned to one of 24 pens in either a nurser ...