Special Issue "High-Yielding Dairy Cows"
Deadline for manuscript submissions: 31 March 2021.
Interests: Veterinary sciences, animal production; animal nutrition; herd health, reproduction
In recent decades, genetics, nutrition, and management improvements have led to high-yielding dairy cows. Currently, the total milk yield, fat and protein contents reach unpreceded levels during their lifetime production, and more increases are expected in the next few years. These improvements pose threats and challenges to animal health and welfare due to metabolic stress.
Metabolic stress is characterized by excessive lipomobilization, inflammatory and immune dysregulations and oxidative stress on body organic systems. It mainly occurs during the periparturient period. Cows are more susceptible to metabolic and infectious diseases such as ketosis, digestive alterations, metritis, mastitis, lameness and different degrees of infertility.
The ultimate goal of this Special Issue is to aggregate new information driving to more efficient dairy cow production in confinement and pasture systems. Research studies directly or indirectly assessing all aforementioned aspects in high-producing dairy cows are welcome. Additionally, we invite research papers which promote the use of new technologies and the automatization of processes (including Agriculture 5.0) in dairy farms, as well as the production impact on the environment and public health.
Prof. João Simões
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access monthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- high-producing dairy cows
- metabolic stress
- dairy cow production
- postpartum diseases
- negative energy balance
- preventive medicine
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Fatty acid profile and enterolactone content of early and commercial milk of dairy cows supplemented with flaked flaxseed during the dry period
Lucia Bailoni, Laura Da Dalt, Gianfranco Gabai, Elisa Giaretta, Nadia Guzzo, and Roberto Mantovani
Department of Comparative Biomedicine and Food Science (BCA) and Department of Agronomy, Food, Natural resources. Animals and Environment (DAFNAE). University of Padova.
The aims of the present work were to evaluate the effects of flaked flaxseed supplementation during the dry period on milk quality and enterolactone (EL) content on plasma and milk. Seventy-three high-yielding Italian Friesian cows were divided in two homogeneous groups and received a control or a flaxseed (FLAX) diet during the dry period. Blood samples were analyzed for EL content before and after parturition; while milk samples were collected in the first 30 days after calving, and analyzed for chemical composition, fatty acid profile and EL content. The total amount of n3 fatty acids and plasma EL content significantly increased in the FLAX group at 4 and 15 days after calving, respectively.
The physiological roles of Vitamin E and hypovitaminosis E in the transition period of high-yielding dairy cow
HAGA1, H. ISHIZAKI1 and SG. ROH2
1 Division of Grassland Farming, Institute of Livestock and Grassland Science, NARO, Nasushiobara, Tochigi, 329-2793, Japan
2 Graduate School of Agricultural Science, Tohoku University, Sendai 981-8572, Japan
Abstract: The act of parturition and increased metabolic activity result in induced oxidative stress and depletion of antioxidant defenses around the time of calving1. The majority of production diseases occurs during early lactation. Blood vitamin E (VE) levels decline gradually throughout prepartum, reaching the lowest levels (hypovitaminosis E) around calving and the hepatic expression of VE-related genes are alters1,2. Lower blood VE concentrations during early lactation are associated with the incidence of peripartum diseases such as mastitis, retained fetal membranes, and left displaced abomasum. Supplementation of VE during the dry-off period can enhance immune function and reduce the risk of mastitis during the periparturient period in dairy cows. This review of the literature investigates the physiological roles of VE and hypovitaminosis E in the transition period of high-yielding dairy cow.
1Haga S, Miyaji M, Nakano M, Ishizaki H, Matsuyama H, Katoh K, Roh SG. 2018. Changes in the expression of alpha-tocopherol-related genes in liver and mammary gland biopsy specimens of peripartum dairy cows. Journal of Dairy Science 101 :5277-5293.
2Haga S, Nakano M, Ishizaki H, Roh SG, Katoh K. 2015. Expression of α-tocopherol-associated genes and α-tocopherol accumulation in Japanese Black (Wagyu) calves with and without α-tocopherol supplementation. Journal of Animal Science. 93:4048–4057