background: one of the most important indicators in public health is earlier traits of new born specially birth's weight. the aim of this study was determined effects of biological and psychological traits mothers on low birth weight in isfahan province. methods: this research performed on 910 new born and delivered mothers of isfahan province in 2009. according to the percentage of population ...

Understanding and using EPDs continues to be a popular topic among cattle producers because of their effectiveness when properly used in genetic selection. Use of EPDs, as with many other standard management tools, is not required to survive in the beef cattle business, but those who do will excel in terms of genetic improvement. With so many traits to monitor in a cow herd, producers should no...