Animal Sciences Commons^™

Returns To The Introduction Of New Sorghum Cultivars Into The Dairy Industry Of El Salvador, Alexis H. Villacís, John H. Sanders

INTSORMIL Presentations

The driver of agricultural development is the introduction of new technology. Sensitive sorghums have long been a critical component of hillside Central American agriculture providing a reserve or insurance policy when the principal staple of maize falters. The insensitive sorghums have been more recently introduced since the ‘70s for planting in the valleys in the second season. In the last thirty years the introduction of new insensitive cultivars has accelerated initially for poultry and in the previous two decades for dairy production. This growth has been facilitated by strategic investments in research by CENTA and the Ministry of Agriculture.

As …

How To Control Texture In Cultured Dairy, Phillip S. Tong

Dairy Science

No abstract provided.

Uses Of Genomic Predictions In Commercial Beef Cattle Operations, Matt Miller

Dairy Science

This paper aimed to achieve two different objectives. The first objective of this study was to identify and explain the genetic gain achieved in commercial beef cattle operations with the use of genomic predictions versus the use of visual appraisal and EPDs. The second goal of this paper was to develop a method to easily explain genomic predictions and their practical applications on commercial beef operations to a lay audience, specifically to ranchers. In order to accomplish these objectives, I evaluated three of the most common selection methods used by producers today. These included visual appraisal, expected progeny differences (EPDs), …

The Effect Of Amylase Supplementation With Low-Starch Rations: Effects On Milk Production And Feed Consumption, Alfred Eaton

Dairy Science

The objective of this trial was to determine if there was an increase in milk production or a decrease in feed consumption by dairy cattle when fed an exogenous rumen-resistant amylase, named RumiStar. High feed prices have caused dairymen to look for new ways to be more efficient. Commercial feed additives have been proposed as opportunities to improve efficiency. In our study a minimum of eighty multiparous Holstein cows were assigned to each of two pens, with a minimum of forty cows in each. Cows that completed their lactation during the study period were replaced with fresh cows to keep …

Rentibilidad De La Introducción De Nuevas Variedades De Sorgo Del Centa En La Industria Lechera De El Salvador: Ponencia Presentada En La Conferencia Del Centa: "Cambio Climático E Impacto De Los Sorgos Forrajeros" Diciembre 7, 2011, San Salvador, El Salvador, Alexis H. Villacís, John H. Sanders

INTSORMIL Scientific Publications

El propulsor del desarrollo agrlcola es la introducción de nuevas tecnologlas. Sorgos fotosensitivos' han sido un componente crítico en la agricultura de las laderas centroamericanas, ofreciendo una reserva o póliza de seguro cuando el alimento básico principal de maiz tambalea. Los sorgos foto-insensitivos han sido introducidos recientemente desde los anos 70 para la siembra en postrera en los valles. En los últimos treinta anos, la introducción de nuevas variedades insensitivas se ha acelerado, en un inicio para las aves de corral y en las dos décadas anteriores para la producción lechera. Este crecimiento ha sido posible gracias a las inversiones …

Assessing Mitochondrial Activity In Embryos From Heat-Stressed Ova, Kimberly Ann Nagle

Masters Theses

Elevated ambient temperatures negatively impacts pregnancy rates in agriculturally important females. An oocyte undergoing meiotic maturation exposed to a physiologically-relevant heat stress results in alterations of developmentally important processes and reportedly decreases subsequent developmental potential after fertilization. To address problems of reduced competence after exposure to heat stress for the first 12 h of meiotic maturation (hIVM), Payton (2009) assessed the transcriptome profiles of oocytes and associated cumulus cells by microarray analysis and reported heat-induced perturbations at the molecular level in the oocyte. Specifically, 20 transcripts involved in mitochondrial function exhibited alterations in relative abundance of heat-stressed oocytes …

W184 Quick Guide To Mastitis Culturing Programs, Kristy H. Campbell

Animals/Livestock

Tennessee Quality Milk Initiative

Version 1.0

W183 Using Dhi Reports To Troubleshoot Mastitis, Kristy H. Campbell

Animals/Livestock

Tennessee Quality Milk Initiative

Version 2.0

W185 Quick Guide To Troubleshooting Mastitis, Kristy H. Campbell

Animals/Livestock

No abstract provided.

W182 Troubleshooting Bacteria Counts, Kristy H. Campbell

Animals/Livestock

Tennessee Quality Milk Initiative

Version 1.0

W180 Steps To Troubleshooting Mastitis, Kristy H. Campbell

Animals/Livestock

Tennessee Quality Milk Initiative

Version 2.0

W181 Mastitis Culturing Programs, Kristy H. Campbell

Animals/Livestock

Tennessee Quality Milk Initiative

Version 1.0

W180 Steps To Troubleshooting Mastitis, Kristy H. Campbell

Animals/Livestock

Tennessee Quality Milk Initiative

Version 2.0

The Efficacy Of Antibiotic Residue Screening Tests For The Detection Of Natural Antimicrobials In Milk, Stacey L. O'Donnell

Master's Theses

No abstract provided.

Cultured Cream Products Must Live Up To The Name, Phillip S. Tong

Dairy Science

No abstract provided.

Low Stress Weaning Alternatives For Cow-Calf Producers: Fenceline-Weaning, Kerry A. Rood

All Current Publications

This publication explains fenceline weaning for calves as a low stress weaning option.

The Expression Of T-Box (Tbx3) In The Bovine Mammary Gland, Maria L. Procopio Ms.

Master's Theses

Development of the bovine mammary gland is a complex process that is regulated by several hormones, growth factors and transcription factors including but not limited to growth hormone (GH), insulin-like growth factor (IGF)-I and T-box (Tbx)2 and 3. Tbx2 and Tbx3 are transcription factors required for mammary gland development in humans and known to regulate cell cycle. In addition, there is recent evidence that GH increases expression of Tbx3 in osteoblasts independent of IGF-I. Based on these findings, we hypothesized GH and IGF-I will increase Tbx2 and Tbx3 expression in bovine mammary epithelial cells (MEC), the cell responsible for milk …

Digestion And Rumen Fermentation In Precision-Fed Dairy Heifers On Low Or High Forage Rations At Four Levels Of Dry Distillers Grain, F. X. Suarez-Mena, G. J. Lascano, A. J. Heinrichs

Dairy Science

No abstract provided.

Chewing Activities Of Dairy Heifers Precision-Fed A Low Or High Forage Ration At Four Levels Of Dry Distillers Grain, F. X. Suarez-Mena, G. J. Lascano, A. J. Heinrichs

Dairy Science

No abstract provided.

Study Of The Innovative Self-Powered Sensor Based Smart Wireless Identification And Tracking Tag For Production Agriculture Application, Kumud Dhakal

Department of Animal Science: Dissertations, Theses, and Student Research

A prototype smart animal ear tag has been developed to meet the United States Department of Agriculture (USDA) animal disease traceability requirement. This novel ‘Smart Tag’ is a self–powered device capable of complete animal identification and tracking. Information on animal health, breeding and vaccination records can also be locally stored and retrieved from these small, economical and securely accessible wireless tags. These smart tags are capable of self-organizing into wireless ad-hoc networks for data reporting and retrieval. This work presents study of the distance coverage of a ‘Smart Tag’ and a cost-benefit analysis of ‘Smart Tag’ implementation. The mean distance …

Sustainable Food: New York Organic Dairy Market Conditions And Recommendations For Policy Reform, Dylan H. Hawkins

Honors Theses

This paper questions the sustainability of the American dairy industry through an examination of the current organic milk industry of New York State, with special attention paid to three interests: consumer welfare, farmer welfare, and the environment. Many consumers envision an agrarian ideal of grazing cows on pasture when they think of a dairy farm; milk-marketing companies often perpetuate this image. Unfortunately, most dairy cows in America do not enjoy such idyllic lives. History shows that consolidation of the American food system has led to major transformations in dairy farming. As a result, consumers have had limited access to high …

Bovine Viral Diarrhea Beef-Herd Risk Assessment, Kerry A. Rood, C Kim Chapman

All Current Publications

This publication gives insite into understanding where the greatest risk to a herd is, relative to the introduction of bovine viral diarrhea (BVD).

Studying Milk Coagulation Kinetics With Laser Scanning Confocal Microscopy, Image Processing, And Computational Modeling, Richard Joseph Hennessy

Master's Theses

The kinetics of milk coagulation are complex and still not well understood. A deeper understanding of coagulation and the impact of the relevant factors would aid in both cheese manufacturing and also in determining the nutritional benefits of dairy products. A method using confocal microscopy was developed to follow the movement of milk fat globules and the formation of a milk protein network during the enzyme-induced coagulation of milk. Image processing methods were then used to quantify the rate of coagulation. It was found that the texture of the protein network is an indicator of the current status of the …

Characterization Of Differentiation Of Bovine Mammary Epithelial Cells, Amanda C. Lopez

Honors Scholar Theses

In American society, dairy products are vital for nutrition and the economy. Optimizing the process of producing milk can benefit the consumers, producers, and the animals involved. Understanding the mechanisms of the development of the mammary gland can increase the efficiency of milk production, as well as improve animal health.

Mammary epithelial cells (MEC) are the functional unit of the mammary gland. Although, there is a well-established MEC cell line, known as MAC-T, the use of a primary cell line is preferred because it more closely mimics an in vivo model. To better understand how mammary cell differentiation is regulated, …

Put Cultured Dairy Products On The School Lunch Menu, Phillip S. Tong

Dairy Science

No abstract provided.

2010 Annual Report, Various Authors

Annual Reports

No abstract provided.

W251 Composting Large Animal Mortalities In Tennessee, Shawn Haskins, Forbes Walker

Animals/Livestock

Version 5.0

W255 Disposing Of Large Animal Mortalities In Tennessee, Forbes Walker, Shawn Haskins

Animals/Livestock

Version 2.0

W252 Land-Filling Large Animal Mortalities In Tennessee, Shawn Haskins, Forbes Walker

Animals/Livestock

Version 4.0

W259 Cattle Mortality Disposal Options In Tennessee, Justin Rhinehart, Fred Hopkins, Bridgett Mcintosh

Animals/Livestock

Version 3.0