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Enteric diseases in dairy cattle
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The development and maturation of the calf gut is an important process that significantly influences calf’s growth and health during early life. More and more evidence indicate that the colonization and establishment of the gut microbiome can directly and indirectly influence animal’s gut function including development and metabolism, nutrition absorption, barrier and immune function, endocrine and neuron transmitter secretions, which can impact animals’ development and...
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Matheus Paez Martins Narciso (University of Alberta) Although the importance of pH and short-chain fatty acids on rumen development are well known, their impact on the small and large intestine are unclear. This study investigated the effects of ruminal short-chain fatty acid concentrations ([SCFA]) and pH on the rumen and intestine of calves. Holstein bull calves (n = 32) were individually housed and fed milk replacer (900 g/d) twice daily and calf...
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Matheus Paez Martins Narciso (University of Alberta) speaks on the importance of pH and short-chain fatty acids on dairy calves' intestinal digestibility and digesta, during the 11th Symposium on Gut Health in Production of Food Animals in St. Louis, USA....
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Introduction Suboptimal milk yield limits the U.S. dairy industry’s productive competitiveness, marginalizes efforts to reduce inputs into food production, and increases animal agriculture’s carbon footprint. There are a variety of circumstances in a cow’s life which result in hindered productivity including heat stress, rumen and hindgut acidosis, feed restriction, and psychological stress associated with normal animal practices (i.e., pen changes, weaning,...
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Wenli Li (US Dairy Forage Research Center) talks about using diets to manipulate rumen microbiome, during the Symposium on Gut Health in St. Louis, USA....
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Wenli Li (US Dairy Forage Research Center) gives a talk on ruminal acidosis and its effect on the microbial community in the liver, during the Symposium on Gut Health in St. Louis, USA....
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Kemin Intestinal Health offers a comprehensive portfolio of high-quality and science-based nutritional ingredients to fuel the potential of livestock, poultry and equine. Our solutions are ecologically responsible, tailored to your needs and support the immunity, gut integrity and microbial balance of your animals.
The fourth annual Kemin Intestinal Health Symposium will include presentations from respected industry experts across the poultry, swine, dairy, beef and equine industries...
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Diarrhoea is a multifactorial disease entity that can have serious financial and animal welfare implications in dairy herds. It has been estimated that 75% of early calf mortality in dairy herds is caused by acute diarrhoea in the pre-weaning period Diarrhoea is a common complaint in cattle and young ruminants (particularly in the first few months of life). Many of the pathogens and management practices that cause diarrhoea in...
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INTRODUCTION Bovine viral diarrhea virus (BVDV) has been classified within the genus Pestivirus of the family Flaviviridae (Wengler et al., 1995). It has a positive single-stranded RNA genome of approximately 12.3kb size, encoding one open reading frame (ORF) that is translated into a single polyprotein of about 4000 kDa (Collett et al., 1988; Meyers and Thiel, 1996). The polyprotein is subsequently cleaved into 4 structural and 6 to 7 non-structural proteins by viral and...
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There is a growing trend to find the best production rates in production animals, using the cross-breeding, nutritional supplementation, medication use, among other options. However, a trend that has started to gain importance worldwide is raising a non-traditional specie, with great potential for the production of milk, for meat and as a work animal, a species whose rusticity allows adapt easily to adverse environmental conditions, very common in the...
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Introduction Fertility is the result of so many factors that the definition of Fromageot (1978) is not surprising: reproduction can be considered a “luxury” function. In fact, several experiments have demonstrated how numerous and different are the causes of reduced fertility. Among them, nutrition has a relevant role (Wolter, 1973; Bertoni, 1990; Ferguson, 1991) related to the deficiency (and sometimes excess) of either energy,...
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Per Theilgaard, Product Manager for Vilofoss, talks to us about gut health and their product Vitcoxduring Eurotier 2016, in Hannover, Germany....
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1. Introduction Clostridium perfringens is an anaerobic, spore-forming Gram-positive bacterium often found as a normal inhabitant of animal and human intestines [1–3]. However, by mechanisms and stimuli that are not fully understood, C. perfringens undergoes rapid proliferation, while producing several toxins, resulting in disease onset. Classification of C. perfringens strains is based on the production of...
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Introduction Cryptosporidiosis is a zoonotic protozoan disease that has a very broad and versatile geographic distribution including the Antarctic region [1]. Cryptosporidium is the causative agent and infects mainly the intestinal tract and rarely the respiratory system of diverse species including human, ruminant, feline, canine, rodent, avian, reptile and fish. Transmission...
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Introduction Clostridium perfringens is a Gram-positive, spore-forming, anaerobic bacterium. It is a normal component of the intestinal microbiota of animals, including humans. It secretes several toxins and enzymes that cause different forms of tissue damage [1–3]. Consequently, it can cause a variety of diseases in various vertebrates [2]. The differences in virulence properties between C. perfringens isolates are...
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The 7th International Conference on Colonic Spirochaetal Infections in Animals and Humans will be held in Hannover, Germany, on October 6-7. The Leonardo Hotel will be the venue for this conference.
Program
Wednesday 5th October, 2016: Arrival . Non-official welcome with buffet dinner open 6-8 pm.
Thursday 6th October, 2016 Registration.
Session 1: New Understanding of Brachyspira...
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1. Introduction Brazil has a herd of 212 million head of cattle and 171 million hectares of pastures that produce approximately 96% of Brazilian beef. On the other hand, gastrointestinal nematodes are a serious problem in ruminant production; once the animals have been exposed to high parasite loads they may succumb, especially younger individuals, which are more susceptible [1, 2]. The...
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Coccidiosis is a disease caused by a microscopic animal or protozoa and is characterized by diarrhoea, unthriftiness and variable levels of mortality. Tissue damage and changes in intestinal tract function may allow colonization by various harmful bacteria leading to various problems. Immunosuppressive diseases may act in concert with coccidiosis to produce more severe diseases. ...
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Many factors contribute to achieving an age at first calving of 24 months for heifers. John Fish from Vitfoss highlights the importance of calf health and mineral nutrition. There’s been much discussion on the topic of the optimal age at first calving (AFC) however numerous studies have shown that targeting an age of 24 months at first calving can be optimal for lifetime...
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