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Full-Text Articles in Life Sciences

What Makes A Good Bull?, James Keyes Sep 2013

What Makes A Good Bull?, James Keyes

All Current Publications

This fact sheet describes the importance of a good sire and how to select one.


Can Cows Eat Snow?, Jim Keyes Sep 2013

Can Cows Eat Snow?, Jim Keyes

All Current Publications

This fact sheet describes situations where cattle can survive on snow without having any other watagriculer supply.


Utilizing Single Nucleotide Polymorphism Analysis In Determining Parentage Of Cattle, Nicole M. Elbert Jan 2013

Utilizing Single Nucleotide Polymorphism Analysis In Determining Parentage Of Cattle, Nicole M. Elbert

Undergraduate Honors Capstone Projects

Parentage identification within cattle herds is an important aspect of record keeping. It is essential for accurate registration within a purebred association and decision making for production purposes, such as replacement heifer and sire selection. Methods used to identify parentage have evolved from utilizing blood protein antigens, restriction fragment length polymorphism (RFLP) and microsatellites to the current technology of analyzing DNA profiles for differing single nucleotide polymorphisms (SNPs). In this preliminary study we analyzed genotype data from 1,066 samples obtained from various cattle breeds. These breeds included Holstein, Angus, Hereford, Irish Black, Jersey, Red Angus, Limousine, Charolais, Brown Swiss and …


Analysis Of An Inkjet Printed Strip Assay For Pregnancy Test In Cattle, Alexandra Windley Kelley Jan 2013

Analysis Of An Inkjet Printed Strip Assay For Pregnancy Test In Cattle, Alexandra Windley Kelley

Undergraduate Honors Capstone Projects

Using commercially available antibodies, we created a modified ELISA strip assay to determine pregnancy in cattle. The anti‐progesterone antibody was printed on small membrane strips via an Inkjet printer. The strips were subsequently analyzed using varying concentrations of progesterone. The objective of this study was to assess this novel antibody printing process and to determine the binding activity of the anti‐progesterone antibody. The long‐term objective is to develop a pen-side pregnancy test that would cost less than $1.00. In this specific study, it was determined that the anti‐progesterone antibody used did not provide adequate sensitivity for visualization required for pen‐side …