Dairy Science Commons^™

J. C. Penney: The Man, The Store And American Agriculture, David Delbert Kruger

David Delbert Kruger

Revised Alfalfa Fertilizer Recommendations For A Changing Environment Greatly Improves Profitability, Brian Lang, John E. Sawyer, Daniel Barker, Ken Pecinovsky

John E. Sawyer

During the last decade, an ever-increasing percentage of alfalfa fields in northeast Iowa have been exhibiting signs of reduced growth and vigor, resulting in declining profitability. Iowa State University Extension in northeast Iowa initiated an investigation into this problem. Sixteen research trials conducted in northeast Iowa over the next 6 years as both on-farm trials and at the northeast ISU research farm uncovered widespread sulfur deficiency problems in alfalfa production. Over 90 ISU Extension educational meetings in northeast Iowa, and extensive use of the media, communicated this issue and tools to address it to farmers and agricultural providers. Survey results …

Practical Considerations And Implementation Of Anaerobic Digester Systems, Jenny Pronto, Curt Gooch, Nellie J. Brown

Nellie J. Brown, MS., C.I.H.

This course prepares learners to implement and run an AD system from the planning and design phase to operation and maintenance. It focuses on the design of AD systems; how to successfully interact with a designer so that the farm’s needs are met; and basic operation and maintenance.

Dealing With Sulfur Deficiency In Northeast Iowa Alfalfa Production, Brian J. Lang, John E. Sawyer, Stephen K. Barnhart

John E. Sawyer

Sulfur deficiencies have been shown to be associated with reduced alfalfa production. This paper documents this problem in NE IA, presenting research over the past 2 years, and provides recommendations for plant analysis as well as appropriate sulfur supplementation strategies.

Tb181: 2000 Milk Processing Costs In Maine, Timothy J. Dalton, George K. Criner, John Halloran

George K. Criner

The objective of this study is to provide an estimate of the theoretically lowest achievable costs of processing and distributing milk in Maine. This processing and distribution margin (referred hence as "margin") is estimated for a state-of-the-art processing plant assumed to be located in the Portland, Maine, area. The plant is assumed to produce and distribute a line of products including white milk, chocolate milk, orange juice, and other fruit drinks, and to distribute additional purchased products such as cheeses and yogurts. This report will present information for four plants to better study the impact of plant size and production …

B853: Cost Of Producing Milk In Maine: Results From The 2010 Dairy Cost Of Production Survey, Richard Kersbergen, Gary Anderson, George Criner, Anthony Davis

George K. Criner

The present study reports on a survey conducted for the Maine Milk Commission to determine the cost of milk production for 2010. This assessment was undertaken sooner than the normal three-year update because of the difficult economic climate for dairy farms in Maine.

Tb204: Organic Milk Production In Maine: Attributes, Costs, And Returns, Amelia L. Cook, Patrick S. Heacock, George K. Criner, Lisa A. Bragg

George K. Criner

This report summarizes attributes, costs, and returns for organic dairy farms in Maine that responded to the 2008 dairy cost of production survey. This survey and analysis was conducted by the University of Maine in cooperation with the Maine Milk Commission. This publication reports on data collected over the 2007 production year. Analysis and discussion of the data revolve around four categories. The first category averages all 30 organic farms to create a statewide group. The authors then broke these 30 farms into three size groups (small, medium, and large) based on the number of cows on each farm. There …

Prediction Of Total Phenols, Condensed Tannins, And 3-Deoxyanthocyanidins In Sorghum Grain Using Near-Infrared (Nir) Spectroscopy, L. Dykes, L. Hoffmann, O. Portillo-Rodriguez, W.L., Rooney, L.W. Rooney

Elvis A. Heinrichs

The reported high phenolic levels in sorghum have led an interest from sorghum breeding programs in developing and identifying germplasms with high phenolic levels, which require screening a large number of samples to find those with the highest levels. Since wet chemistry screening methods are slow, expensive, and destructive, the use of NIR calibration curves could be an alternative. The objectives of this project were to determine the variation range in total phenols, condensed tannins, and 3-deoxyanthocyanidin levels in a diverse set of sorghum genotypes and to assess the predictive value of NIR curves to estimate these compounds in sorghum. …

Viability Of Lactic Acid Bacteria And Sensory Evaluation In Cinnamomum Verum And Allium Sativum-Bio-Yogurts Made From Camel And Cow Milk, Ahmad Salihin Hj Baba, Shori A. B.

Ahmad Salihin Hj Baba

The present study investigate the effect of herbal water extract prepared from Allium sativum and Cinnamomum verum on the viability of lactic acid bacteria (Lactobacillus spp and Streptococcus thermophilus) in cow- and camel-milk yogurts during 21 day refrigerated storage. The organoleptic properties of fresh-yogurts were evaluated. Lactobacillus spp count for fresh cow milk-yogurts (0 day) in both present and absent of C. verum and A. sativum was ranged from 1.4×0 6 to 2.1×10 6 cfu/mL. These values were not significantly changed throughout the 21 days of refrigerated storage. Lactobacillusspp count in fresh plain camel milk- yogurt was 13.2×10 6 cfu/mL …

Mycotoxins In Corn Distillers Grains: A Concern In Ruminants?, Alvaro Garcia, Kenneth Kalscheur, Arnold Hippen, David Schingoethe, Kurt A. Rosentrater

Kurt A. Rosentrater

Themain fungi that produce toxins during storage belong to three genera: Aspergillus, Fusarium, and Penicillium. When dealing with cattle diets, it is not easy to correlate the presence of mycotoxins to that of molds. The same types of molds can produce different types of toxins, and different types ofmolds can produce the samemycotoxin.

Growth And Reproductive Performance Of Small Ruminants Under Integrated Livestock Oil Palm Production System, Ahmad Salihin Hj Baba, Azillah A., Mukherjee T. K., Abdullah R. B.

Ahmad Salihin Hj Baba

The effects of supplementation with mixed fodder or concentrate were investigated on the performance of a) growth of male lambs;md kids grazing extensively under oil palm trees and b) reproduction of ewes and goats stall-fed with native herbage. Supplemented kids and lambs had higher average daily weight gain than controls but the effect was only significant for those which received concentrate (p < 0.05). Final body weight was only significantly different from controls for lambs supplemented with concentrate (p < 0.05). The ages at puberty, first mating, first conception and first kidding of supplemented goats were about 110 days earlier than those for controls (p < 0.05 or better). Supplemented goats had first mating and conceived at lower body weights (p < 0.01) than those in control groups. Different feeding regimes had no effects (p > 0.05) on the reproductive performance of ewes apart fi om highest body weight of first lambing in animals supplemented with concentrate (p < 0.05). Native herbage available under oil palm trees of 5 years old was sufficient for growth …