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Full-Text Articles in Dairy Science

Concentrate Levels And Saccharomyces Cerevisiae Affect Rumen Fluid-Associated Bacteria Numbers In Dairy Heifers, G. J. Lascano, G. I. Zanton, A. J. Heinrichs Dec 2009

Concentrate Levels And Saccharomyces Cerevisiae Affect Rumen Fluid-Associated Bacteria Numbers In Dairy Heifers, G. J. Lascano, G. I. Zanton, A. J. Heinrichs

Dairy Science

Total viable rumenbacteria counts through the use of colony-unit forming assays lack accuracy because they only include culturable bacteria capable of initiating cell division. Thus, bacterial counts can be underestimated. The use of fluorescent characteristics of cell membranes allows flow cytometry to enumerate and distinguish dead from live bacteria cells. The objective of this experiment was to investigate the viable and total ruminal bacteria counts when 3 levels of forage:concentrate in diets were fed at restricted levels with the addition of Saccharomycescerevisiae (YC). Three cannulated post-pubertal Holstein heifers (age 18 ± 1.0 months) were fed corn silage (CS)-based diets in …


Culturally Speaking: Ethnic Dairy Foods, Phillip S. Tong Dec 2009

Culturally Speaking: Ethnic Dairy Foods, Phillip S. Tong

Dairy Science

No abstract provided.


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.


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.


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.


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 protein …


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 …


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.


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.


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.


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 Insemination …


Rumen Fermentation Pattern Of Dairy Heifers Fed Restricted Amounts Of Low, Medium, And High Concentrate Diets Without And With Yeast Culture, G. J. Lascano, A. J. Heinrichs Sep 2009

Rumen Fermentation Pattern Of Dairy Heifers Fed Restricted Amounts Of Low, Medium, And High Concentrate Diets Without And With Yeast Culture, G. J. Lascano, A. J. Heinrichs

Dairy Science

Restricted feeding and highconcentratediets are potential strategies for growing dairyheifers. Ruminal manipulation with additives such as Saccharomyces cerevisiaeyeastculture (YC) has been shown to alter digestibility when added to this type of diet. An experiment was conducted to investigate the ruminal fermentation and in situ digestibility of diets with 3 different levels of forage to concentrate (F:C) fed at restricted intake without and with YC addition. Three cannulated post-pubertal Holstein heifers (age 18.0 ± 1.2 months; body weight 449.6 ± 19.7 kg) were feddiets consisting of corn silage as the sole forage source in a 3 period (35-day) Latin square …


Phil Tong On Nutritious Frozen Dairy, Phillip S. Tong Sep 2009

Phil Tong On Nutritious Frozen Dairy, Phillip S. Tong

Dairy Science

No abstract provided.


Culturally Speaking: Shelf Life, Phillip S. Tong Jun 2009

Culturally Speaking: Shelf Life, Phillip S. Tong

Dairy Science

No abstract provided.


Culturally Speaking: Raw Milk Quality, Phillip S, Tong Apr 2009

Culturally Speaking: Raw Milk Quality, Phillip S, Tong

Dairy Science

No abstract provided.