Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Publication
- Publication Type
Articles 1 - 7 of 7
Full-Text Articles in Life Sciences
Methane From Lactating Dairy Cattle: Studies For Mitigation, Diurnal Variation, And Role In Energy Metabolism, Jared Vern Judy
Methane From Lactating Dairy Cattle: Studies For Mitigation, Diurnal Variation, And Role In Energy Metabolism, Jared Vern Judy
Department of Animal Science: Dissertations, Theses, and Student Research
Reducing methane production in dairy cattle has received an increased interest due to environmental concerns associated with its potency as a greenhouse gas. Methane represents lost energy in cattle and reduction may increase animal efficiency and productivity. Experiment 1 evaluated strategies of mitigating methane production in lactating dairy cattle with inclusion of dried distillers grains and solubles (DDGS), DDGS with added corn oil, and DDGS with added calcium sulfate and effects on energy and nitrogen balance. Inclusion of DDGS, corn oil, and calcium sulfate, increased DMI and milk yield. Methane production was reduced with addition of corn oil …
The Effect Of Regular Or Reduced-Fat Distillers Grains With Solubles On Rumen Methanogenesis And The Rumen Bacterial Community, E. Castillo-Lopez, C. J. R. Jenkins, N. D. Aluthge, W. Tom, P. J. Kononoff, S. C. Fernando
The Effect Of Regular Or Reduced-Fat Distillers Grains With Solubles On Rumen Methanogenesis And The Rumen Bacterial Community, E. Castillo-Lopez, C. J. R. Jenkins, N. D. Aluthge, W. Tom, P. J. Kononoff, S. C. Fernando
Department of Animal Science: Faculty Publications
Aims: The effect of feeding dried distillers grains with solubles (DDGS) or reduced-fat DDGS (RFDG) on ruminal methanogenesis and the rumen bacterial community of dairy cattle was evaluated. Methods and Results: Treatments were CONT, a diet with no distillers grains; DG, inclusion of 20% DDGS; rfDG, inclusion of 20% RFDG; and MIX, inclusion of 10% DDGS and 10% RFDG. Methane emission was measured; rumen bacterial community was evaluated by sequencing the V4 region of the 16S rRNA gene. Total methane production remained unaffected. However, feeding distillers grains tended to reduce methanogenesis per unit of feed intake, decreased the abundance of …
Full Report, B. Bradford
Full Report, B. Bradford
Kansas Agricultural Experiment Station Research Reports
Kansas State University is pleased to present the 2017 Dairy Research Report of Progress.
Foreword, B. Bradford
Foreword, B. Bradford
Kansas Agricultural Experiment Station Research Reports
Kansas State University is pleased to present the 2017 Dairy Research Report of Progress. We continue to watch the Kansas dairy industry grow, and in 2016 our state ranked 10th for largest growth in total milk produced. During the past 5 years (2011 to 2016), total milk production in Kansas has increased by 29%; the number of cows by 18%; and annual pounds of milk per cow by 1,785. Therefore, the Kansas dairy herd is not only growing, but is becoming more productive and efficient. At the end of 2016, Kansas ranked 13th nationally in milk yield per cow at …
Acknowledgments
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 2016-2017.
Risk Factors Of Clinical And Subclinical Endometritis In Cattle: A Review, Mounir Adnane, Rachid Kaidi, Christian Hanzen, Gary C.W. England
Risk Factors Of Clinical And Subclinical Endometritis In Cattle: A Review, Mounir Adnane, Rachid Kaidi, Christian Hanzen, Gary C.W. England
Turkish Journal of Veterinary & Animal Sciences
The postpartum period is a critical period in the life of dairy cattle and management of the most important problems and diseases at an early stage represents the key to successful dairy herd management. Endometritis is one of the most important and dramatic diseases that disrupt the reproductive performance of cows and reduce the livestock profitability. Because endometritis is a multifactorial disease and is caused by nonspecific bacteria, determining all the factors that enhance its risk of occurrence is more important than treating the disease. This review considers the evidence regarding the risk factors for postpartum endometritis in dairy cattle …
Impacts Of Vitamin C And E Injections On Ovarian Structures And Fertility In Holstein Cows Under Heat Stress Conditions, Juan GonzáLez Maldonado, Raymundo Rangel Santos, Raymundo Rodriguez De Lara, Gustavo Ramirez Valverde
Impacts Of Vitamin C And E Injections On Ovarian Structures And Fertility In Holstein Cows Under Heat Stress Conditions, Juan GonzáLez Maldonado, Raymundo Rangel Santos, Raymundo Rodriguez De Lara, Gustavo Ramirez Valverde
Turkish Journal of Veterinary & Animal Sciences
This study evaluated the effect of injecting vitamin C (VC) and E (VE) on size of the preovulatory follicle, volume of the corpus luteum, and pregnancy rates in Holstein cows under heat stress conditions (temperature humidity index > 74). Sixty-two cows were randomly assigned to one of four treatments: 1, control, n = 15: cows were not supplemented with vitamins; 2, VCG, n = 15: cows were simultaneously injected i.v. with 500 and s.c. with 2500 mg of VC before and after estrus; 3, VEG, n = 15: cows received an i.m. injection of 3000 IU of VE before estrus; 4, …