immunitystressneonateDespite many advances in management and housing of dairy calves, 1 in 10 US dairy heifers die before weaning. A better understanding of the internal and external stimuli that contribute to the physiological and behavioral responses of calves to stressors is needed to reduce the...
As mentioned above, these issues ultimately lead to the unborn calf not getting the nutrition it needs. As such, transition cows suffering from heat stress can give birth to calves with a 4.5 kg lower birth weight. Housing and management A big part of managing heat stress in your tr...
Given the importance of the physiological processes occurring during the last months of gestation for the dam and the calf, late gestation is a critical time to focus on management strategies aiming to minimize the occurrence of heat stress. Understanding the mechanisms underlying the production impair...
The primary goal of management of reproduction is to manage and mitigate undesirable male sexual behavior, reduce animal population size and inhibit physiological sexual activity [1]. In recent decades, surgical castrarion as a method of male sterilization has been declined [2]. This shift can be...
While calves are more heat-tolerant than mature animals, they are still susceptible to heat stress-related reductions in feed digestibility and energy redistribution, leading to lower growth and immunity. 4. Previous exposure to heat Cattle previously exposed to high temperatures are better able to ...
Stress-induced changes in immune function have been documented in cattle with alterations to cell-mediated and humoral immunity having a significant impact on immunocompetence which may increase susceptibility to disease [12–18]. Weaning, together with movement of beef calves from a pasture ...
Heat stress (HS) is a major stress event in the life of an animal, with detrimental upshots in production and health. Long-non-coding RNAs (lncRNAs) play an important role in many biological processes by transcriptional regulation. However, no research h
Effect of transportation and commingling on the acute-phase protein response, growth, and feed intake of newly weaned beef calves. J Anim Sci. 2003;81:1120–5. Article CAS PubMed Google Scholar Ashley PJ, Ringrose S, Edwards KL, Wallington E, McCrohan CR, Sneddon LU. Effect of noxious...
Maternal stressors during late pregnancy cannot only influence colostrogenesis but also compromise adequate intestinal development in the fetus, thus, that further limits the newborn's ability to absorb nutrients, bioactive compounds, and immunity (i.e., immunoglobulins, cytokines, and immune cells) ...
Effects of late-gestation heat stress on immunity and per- formance of calves. J Dairy Sci 2016; 99: 3193-8.Dahl, G. E., S. Tao, and A. P. A. Monteiro. 2016. Effects of late-gestation heat stress on immunity and performance of calves. J. Dairy Sci. 99:3193-3198....