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California Polytechnic State University, San Luis Obispo

Dairy Science

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Full-Text Articles in Life Sciences

A Literature Review On Crossbreeding In Dairy Cattle, Philip Owens Dec 2010

A Literature Review On Crossbreeding In Dairy Cattle, Philip Owens

Dairy Science

The objective of the literature review was to determine whether or not crossbreeding is a profitable and a viable option for the dairymen of today by reviewing the literature and experiments that have been conducted throughout the world by today’s dairy professionals and leaders. The Dairy market today is increasingly competitive and more and more dairymen are considering crossbreeding to decrease health costs and increase profitability. Price premiums from cheese plants are given to milk producers for high components like protein and fat. In recent studies done by universities and research facilities around the world, results have found promising ...


Dairy Cow Grouping, Allison Mcmillan Dec 2009

Dairy Cow Grouping, Allison Mcmillan

Dairy Science

No abstract provided.


Relationship Of Copper, Zinc And Selenium Status With Udder Health And Mastitis Incidence In The Cal Poly Holstein Herd, Michelle Van Ryn Dec 2009

Relationship Of Copper, Zinc And Selenium Status With Udder Health And Mastitis Incidence In The Cal Poly Holstein Herd, Michelle Van Ryn

Dairy Science

No abstract provided.


Algae As An Economical Protein Source For Dairy Cattle Nutrition, Brian Azevedo Dec 2009

Algae As An Economical Protein Source For Dairy Cattle Nutrition, Brian Azevedo

Dairy Science

Dairying continues to change with economic and environmental demands of today’s fast moving society. Feed costs continue to rise and now account for a large majority of expenses on dairies; especially protein, which has become expensive to purchase. I believe that Algae can serve as a possible solution to aid in alleviating this problem. Algae grow rapidly and consume undesirable carbon dioxide to release oxygen to the environment, making it an environmentally friendly source of feed. There are particular strands of algae that are high in protein. During the course of this project, I intend to discover how effective ...


Where The Wild Stuff Grows: Bacteria From The Cow To The Pasture-Izer, Michael Stewart Dec 2009

Where The Wild Stuff Grows: Bacteria From The Cow To The Pasture-Izer, Michael Stewart

Dairy Science

No abstract provided.


Use Of Loading Reports To Evaluate The Accuracy Of The Total Mix Ration, Kailen Johnson Dec 2009

Use Of Loading Reports To Evaluate The Accuracy Of The Total Mix Ration, Kailen Johnson

Dairy Science

No abstract provided.


Formation Of Cull Cow Program For The Artificial Insemination Class, Brian O. Medeiros Dec 2009

Formation Of Cull Cow Program For The Artificial Insemination Class, Brian O. Medeiros

Dairy Science

Cal Poly’s “Learn by Doing” philosophy is one of the great traits that the University holds. However it is this philosophy that is also one of the most expensive and hardest to maintain. “Production agriculture majors use more dollars per unit than any other major in the entire college,” as Dr. Golden stated during his talks about herd cut backs. Never the less the College of Agriculture prides itself on supplying knowledgeable and experienced students to the industry that supports it so much. One of the amazing classes that are offered at the university is the Dairy Science Artificial ...


Usage Of The Penn State Forage Separator For Evaluating Particle Size Of Tmrs, Ashley Rene Garcia Dec 2009

Usage Of The Penn State Forage Separator For Evaluating Particle Size Of Tmrs, Ashley Rene Garcia

Dairy Science

Particle size has many effects on the cow. Adequate forage particle length is necessary for proper rumen function. Dairymen are also having a hard time measuring particle size. Proper particle size distribution of feeds is an important part of ration formulation. Management of forage particle size starts with harvesting forages at the proper stage of maturity. Chopping the crop at the right length helps to achieve the desired particle length in a TMR. Measuring particle length of the forages is only a portion of the solution. Analyzing the TMR particle size is the main goal in measuring the distribution of ...


Lameness And Locomotion Scoring Of Dairy Cows, Haley Lynne Aquino Dec 2009

Lameness And Locomotion Scoring Of Dairy Cows, Haley Lynne Aquino

Dairy Science

No abstract provided.


Training Manual And Protocol For Ultrasound At Cal Poly, Brian Andrew Waymire Dec 2009

Training Manual And Protocol For Ultrasound At Cal Poly, Brian Andrew Waymire

Dairy Science

No abstract provided.


Selecting, Marketing And Rebuilding A Herd Of Genetically Superior Animals, Katherine Rector Dec 2009

Selecting, Marketing And Rebuilding A Herd Of Genetically Superior Animals, Katherine Rector

Dairy Science

No abstract provided.


Group Feeding For The Lactating Cow, Anthony Joseph Martin Jan 2009

Group Feeding For The Lactating Cow, Anthony Joseph Martin

Dairy Science

Feeding individualized rations for lactating dairy cattle in the commercial herd based on dietary needs is a popular issue. This has been a debating topic since evolution of the Total Mixed Ration (TMR). Since dairymen were able to mix grain in a feed wagon and mix a specific dietary ration to meet the demand for an organized group, there has been an issue in which protocol cow pen grouping should take. Dairymen have always feed cattle based on if lactating or late in their gestation, nonlactating. With the evolution of the TMR dairymen are then allowed to go into more ...