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J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Delbert Kruger 2017 University of Wyoming

J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Delbert Kruger

David Delbert Kruger

No abstract provided.


Slimy And Ropy Milk, R. E. Buchanan, B. W. Hammer 2017 Iowa State College

Slimy And Ropy Milk, R. E. Buchanan, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

A study of slimy and ropy milk sent for examination to the dairy bacteriological laboratories of Iowa State College has shown the following:

1. Cultures of organisms secured from slimy starters, apparently typical Streptococcus lacticus forms, sometimes showed marked capacity to produce ropiness when inoculated into sterile milk. This slime producing power is evidently a variable characteristic, appearing and disappearing without apparent cause.

2. Associative action of organisms in some cases is responsible for ropiness. Two organisms, neither of which alone can cause ropiness, may, when grown together, cause the medium to become slimy.

3. Bacterium (lactis) viscosum is one ...


Bacteriological Studies On Two Yellow Milk Organisms, B. W. Hammer 2017 Iowa State College

Bacteriological Studies On Two Yellow Milk Organisms, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The different milk constituents vary greatly in their susceptibility to the action of the bacteria that make up the flora commonly found in milk. At ordinary temperatures in raw milk, the lactose is soon attacked and acid formed, but if the acid producing organisms are destroyed by some such procedure as heating, pronounced changes soon take place in the casein. The fat is one of the milk constituents that is more resistant to bacterial action, yet even in it striking changes are observed under certain conditions. Some of the common milk organisms, even some of the acid producing types, are ...


Bacteriological Studies On The Coagulation Of Evaporated Milk, B. W. Hammer 2017 Iowa State College

Bacteriological Studies On The Coagulation Of Evaporated Milk, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The value of milk as a food has led to many attempts at its preservation until at the present time various kinds of dried and canned milks are manufactured. The canned milks, because of the water contained in them, are open to bacteriological changes unless the action of microorganisms is overcome by either killing those present or by making the conditions unsuited to their growth.


A Bacteriological Study Of Blue Milk, B. W. Hammer 2017 Iowa State College

A Bacteriological Study Of Blue Milk, B. W. Hammer

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

In October, 1913, the receipt of a sample of blue milk by the dairy section of the Iowa Agricultural Experiment Station prompted an investigation of this uncommon phenomenon. Careful study of the organism involved proved it to be Bac. cyanogenes, the same organism that has been isolated in other instances of blue milk. As far as is known, this organism is entirely harmless and milk which is turned blue by it is objectionable only on account of its color.


The Specific Heat Of Milk And Milk Derivatives, B. W. Hammer, A. R. Johnson 2017 Iowa State College

The Specific Heat Of Milk And Milk Derivatives, B. W. Hammer, A. R. Johnson

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

In a great many dairy processes where heat is used, the amount and intensity of the energy necessary to gain a certain end-product are very important. These factors are important not only because heat, like material commodities, is an item of expense, but also, because too great an intensity of temperature, or too prolonged an application, may cause serious chemical and physical changes in the substance worked with.


Making And Keeping Your Cattle Herd Safe From Bovine Viral Diarrhea (Bvd), Kerry A. Rood, C Kim Chapman, Allen Young 2017 Utah State University Extension

Making And Keeping Your Cattle Herd Safe From Bovine Viral Diarrhea (Bvd), Kerry A. Rood, C Kim Chapman, Allen Young

C. Chapman

This publication provides steps for keeping cattle herds safe from Bovine Viral Diarrhea (BVD).


Dairy Research 2016, Full Report, B. Bradford 2017 Kansas State University, Manhattan

Dairy Research 2016, Full Report, B. Bradford

Kansas Agricultural Experiment Station Research Reports

Kansas State University is pleased to present the 2016 Dairy Research Report of Progress.


Acknowledgments, Dairy Research 2016, B. Bradford 2017 Kansas State University, Manhattan

Acknowledgments, Dairy Research 2016, B. Bradford

Kansas Agricultural Experiment Station Research Reports

Appreciation is expressed to the following organizations for their support of dairy teaching, research, and extension at Kansas State University during 2015-2016.


Bioavailability Of Rumen-Protected Carnitine In Lactating Dairy Cows, K. Olagaray, J. Shaffer, C. Armendariz, A. Bellamine, S. Jacobs, E. Titgemeyer, B. Bradford 2017 Kansas State University, Manhattan

Bioavailability Of Rumen-Protected Carnitine In Lactating Dairy Cows, K. Olagaray, J. Shaffer, C. Armendariz, A. Bellamine, S. Jacobs, E. Titgemeyer, B. Bradford

Kansas Agricultural Experiment Station Research Reports

For this study, 56 lactating Holstein cows (143 ± 72 days in milk) were used in a randomized complete block design to evaluate 2 rumen-protected products compared to crystalline carnitine. Treatments were a) control, b) 3 grams/day crystalline L-carnitine (raw), c) 6 grams/day raw, d) 5 grams/day 40COAT (40% coating, 60% L-carnitine), e) 10 grams/day 40COAT, f) 7.5 grams/day 60COAT (60% coating, 40% L-carnitine), and g) 15 grams/day 60COAT. Treatments were top-dressed to diets twice daily. The 14-day experiment included a 6-day baseline-measurement period with the final 2 days used for data and sample ...


Bioavailability Of Ruminally Or Abomasally Infused L-Carnitine In Holstein Heifers, K. Olagaray, C. Armendariz, A. Bellamine, S. Jacobs, E. Titgemeyer, B. Bradford 2017 Kansas State University, Manhattan

Bioavailability Of Ruminally Or Abomasally Infused L-Carnitine In Holstein Heifers, K. Olagaray, C. Armendariz, A. Bellamine, S. Jacobs, E. Titgemeyer, B. Bradford

Kansas Agricultural Experiment Station Research Reports

This study evaluated the relative bioavailability of carnitine delivered by different methods in dairy cattle. Four Holstein heifers were used in a split-plot design to compare ruminally or abomasally infused L-carnitine. The study included 2 main-plot periods, with infusion routes allocated in a crossover design. Within main-plot periods, each of 3 subplot periods consisted of 4-d infusions separated with 4-d rest periods. Subplot treatments were infusion of 1, 3, and 6 g L-carnitine daily. Doses were increased within a period to minimize carryover. Treatments were delivered in two 10-h infusions daily. Blood was collected before the start of infusions and ...


Effectiveness Of Two Ruminally Protected Methionine Sources For Lactating Dairy Cows, M. Ardalan, F. Vargas-Rodriguez, G. I. Zanton, M. Vázquez-Añón, E. Titgemeyer, B. Bradford 2017 Kansas State University, Manhattan

Effectiveness Of Two Ruminally Protected Methionine Sources For Lactating Dairy Cows, M. Ardalan, F. Vargas-Rodriguez, G. I. Zanton, M. Vázquez-Añón, E. Titgemeyer, B. Bradford

Kansas Agricultural Experiment Station Research Reports

Two sources of ruminally protected methionine were tested for their ability to provide available methionine to lactating dairy cattle. Based on milk protein yield and milk protein percent, NTP-1401 (an unreleased product from Novus International, Inc., St. Charles, MO) and Smartamine (Adisseo, Alpharetta, GA) provided similar amounts of available methionine to the cows. These two products led to different methioninerelated compounds appearing in blood plasma, suggesting that they contained different methionine precursors.


Effects Of Dietary Zinc Source And Level On Mammary Epithelia And Dairy Food Chemistry, J. Shaffer, K. Pandalaneni, L. Mamedova, J. DeFrain, J. Amamcharla, B. Bradford 2017 Kansas State University, Manhattan

Effects Of Dietary Zinc Source And Level On Mammary Epithelia And Dairy Food Chemistry, J. Shaffer, K. Pandalaneni, L. Mamedova, J. Defrain, J. Amamcharla, B. Bradford

Kansas Agricultural Experiment Station Research Reports

Twelve lactating Holstein cows (132 ± 21 days in milk) were enrolled in a Latin square experiment to explore the extent to which source and amount of supplemental dietary Zn can impact barrier function of mammary epithelial tissue. Cows received either 970 mg supplemental Zn/day as ZnSO4 (LS), 1,640 mg supplemental Zn/day as ZnSO4 (HS), or 1,680 mg supplemental Zn/day as a mixture of ZnSO4 and Zn methionine complex (HC). Treatments lasted for 17 days followed by 4 days of sample collection. Blood and milk were collected and analyzed for markers of blood-milk ...


Development Of A Berry Processing Score For Sorghum Silage, J. R. Johnson, J. P. Goeser, Michael Brouk 2017 Kansas State University, Manhattan

Development Of A Berry Processing Score For Sorghum Silage, J. R. Johnson, J. P. Goeser, Michael Brouk

Kansas Agricultural Experiment Station Research Reports

This study was done in an effort to develop a berry processing score (BPS) for sorghum silage, similar to the kernel processing score (KPS) currently used for corn silage. Sorghum silage samples were collected from 3 dairies in Kansas and processed in the Grain Science & Industry grain processing laboratory at Kansas State University using one of four different roll gap settings to give four differently processed samples: unprocessed, 1.5, 1.0, or 0.5 mm. After drying, samples were placed into a Ro-Tap particle separation machine for 10 minutes until the whole sample was separated. Whole samples, as well ...


Benchmarking Reproductive Efficiency And Transition Cow Health Of Kansas Dairy Herds, A. Scanavez, B. E. Voelz, L. Mendonca 2017 Kansas State University, Manhattan

Benchmarking Reproductive Efficiency And Transition Cow Health Of Kansas Dairy Herds, A. Scanavez, B. E. Voelz, L. Mendonca

Kansas Agricultural Experiment Station Research Reports

Comparing key performance indicators across dairy farms may provide insightful information to dairy producers. Differences in management philosophies, facilities, and locations of dairy farms may influence overall performance of dairy operations. An ongoing extension program aims to benchmark reproductive performance and transition cow health of dairy farms located in Kansas and adjacent states. In this report, we compiled data from 2013 to 2015 of herds enrolled in the program and divided the data in warm and cool seasons to evaluate the impact of heat stress on key performance indicators. Annual pregnancy risk and warm to cool ratio of pregnancy risk ...


Additional Small Dose Of Prostaglandin F2Α At The Time Of Ai Fails To Improve Pregnancy Rates Of Lactating Dairy Cows, J. Stevenson, J. A. Sauls, L. Mendonca 2017 Kansas State University, Manhattan

Additional Small Dose Of Prostaglandin F2Α At The Time Of Ai Fails To Improve Pregnancy Rates Of Lactating Dairy Cows, J. Stevenson, J. A. Sauls, L. Mendonca

Kansas Agricultural Experiment Station Research Reports

In two experiments we tested the hypothesis that administering 10 mg of prostaglandin F (PGF) to lactating dairy cows concurrent with timed artificial insemination would increase pregnancy outcome. In three herds with 2,135 inseminations, we failed to demonstrate a positive effect on pregnancy per AI. Although a trend was observed in experiment 1, with more cows in experiment 2, the PGF treatment failed to improve pregnancy outcomes.


Increasing Estrus Expression In Lactating Dairy Cows, J. A. Sauls, B. E. Voelz, J. Stevenson 2017 Kansas State University, Manhattan

Increasing Estrus Expression In Lactating Dairy Cows, J. A. Sauls, B. E. Voelz, J. Stevenson

Kansas Agricultural Experiment Station Research Reports

This report summarizes the use of various hormones in an attempt to induce greater estrus expression of lactating dairy cows. Average detection of estrus (< 50%) in most U.S. dairy herds has been identified as a problem limiting reproductive efficiency. Detection of estrus plays an important role in reproductive management in U.S. dairy herds despite the adoption of fixed-time artificial insemination programs. When estrus was detected by an activity monitoring system or a rump-mounted device, supplementing cows with progesterone before induction of luteolysis resulted in greater intensity of estrus when compared with controls. In addition, administering estradiol cypionate at 24 h after induced luteolysis resulted in greater frequency of estrus expression compared with cows treated with testosterone propionate or controls when assessed by an activity monitor. Activity monitoring systems achieved heat-detection rates of approximately 70% (80% with estradiol) and are likely cost effective for herds achieving less than that level of heat detection.


Foreword, Dairy Research 2016, B. Bradford 2017 Kansas State University, Manhattan

Foreword, Dairy Research 2016, B. Bradford

Kansas Agricultural Experiment Station Research Reports

Kansas State University is pleased to present the 2016 Dairy Research Report of Progress.


Evaluation Of Weather Information From On-Farm And Meteorological Stations To Assess Heat Stress In Dairy Cows In Southwest Kansas, A. Scanavez, L. Rocha, B. E. Voelz, L. Hulbert, L. Mendonca 2017 Kansas State University, Manhattan

Evaluation Of Weather Information From On-Farm And Meteorological Stations To Assess Heat Stress In Dairy Cows In Southwest Kansas, A. Scanavez, L. Rocha, B. E. Voelz, L. Hulbert, L. Mendonca

Kansas Agricultural Experiment Station Research Reports

Heat stress represents a challenge for the dairy industry. In order for producers to implement appropriate management practices, it is crucial for researchers to assess the extent of heat stress to which cows are exposed during the summer. Temperaturehumidity index (THI) may be used to determine the severity of heat stress that cows are exposed to during the summer. The objective of this study was to evaluate climate conditions by calculating THI using information from: 1) an official meteorological station, 2) loggers at the pen-level, and 3) loggers at the cow-level from a commercial dairy located in southwest Kansas. Temperature-humidity ...


Assessing Training Methods To Educate Dairy Workers, L. Mendonca, B. E. Voelz, A. Scanavez 2017 Kansas State University, Manhattan

Assessing Training Methods To Educate Dairy Workers, L. Mendonca, B. E. Voelz, A. Scanavez

Kansas Agricultural Experiment Station Research Reports

Training employees is fundamental for dairy producers to achieve efficiency in order to increase profitability. Training videos offered online are becoming more common and recommended to train employees. The goals of this survey were to evaluate the comfort level of dairy employees in using computers and tablets, and preferred training delivery methods. A total of 71 employees from 6 dairies were interviewed. Interviews were conducted in the preferred language of the interviewee – English or Spanish. Of the respondents, 52 and 65.6% of employees consider computers and tablets easy to use, respectively. More than half of the employees reported that ...


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