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Dairy cattle nutrition
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Dr. Adegbola Adesogan, Associate Professor in the Department of Animal Sciences of the University of Florida, speaks about assessing nutritive value of tropical forages and also about his new projects....
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INTRODUCTION The carbohydrate fraction, which includes neutral detergent fiber (NDF) and non-fiber carbohydrate (NFC), comprises approximately 70% of diets for lactating dairy cows (DM basis). Meeting a minimum forage-NDF guideline is important for providing sufficient physically-effective NDF (peNDF) to support good rumen function, while exceeding a maximum forage-NDF guideline may restrict dry matter intake (DMI) through rumen fill...
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Yeast postbiotic helps reduce SCC in dairy cows under challenging conditions
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Introduction Dairy farmers might be over-feeding a large proportion of lactating cows when they feed the same ration to a large group of animals. Diets are normally formulated to provide enough nutrients to the most productive animals, which in turn gives extra nutrients to the less productive animals. Therefore, splitting lactating cows in smaller groups and offering group-specific feeding rations provides more precise...
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Studies have demonstrated that heat-treating colostrum at 60°C for 60 minutes results in a significant reduction in colostral bacteria counts with no overall reduction in colostral IgG concentrations. Preweaned calves fed HT colostrum have enhanced efficiency of absorption of IgG and reduced morbidity. Despite these benefits, limited research exists to describe if the heat-treatment process harms other colostrum components. The objective of Study 1, described herein, was...
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Dairy Cow Nutrition Nutrient requirements for lactating dairy cows vary with the stage and level of lactation, growth rate and stage of gestation. Most dairy producers in Arkansas feed grain in the parlor as the cows are being milked. This allows producers the opportunity to feed cows according to their level of production and to manage the amount and quality of grain that the cow is consuming. Figure 1 (page 2) shows the...
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Enzymes have been used extensively in the diets of poultry and pigs, and as silage additives, but, until recently, not much in the diets of ruminants (Beauchemin et al., 1995; Beauchemin et al., 1999a; Yang et al., 1999), due to the view that feed enzymes would be rapidly degraded in the rumen before they could have any effect (Beauchemin et al., 1995; Beauchemin et al., 1999a; Kung et al., 2000; Bowman et al., 2002a) and due to the high cost of enzymes and inconsistency of responses (Yang et...
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Hi dear all kindly share your opinion on the futre of FMD effected cows. what would be impact on current lactation? and wht would be effect on reproduction? waiting for ur expert opinion Regards Subhani ...
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Summary The aim of the Australian Profit Ranking (APR) selection index for Australian dairy cattle is to improve the profitability of dairy farming and assigns weights to milk, fat and protein yield, daughter survival, daughter fertility, somatic cell count, live weight, temperament and likeability according to their contributions to profit and their correlations. Although the index partially captures gross efficiency, it does not account for...
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KeyShure Effects of an organic source of copper, manganese and zinc on dairy cattle productive performance, health status and fertility
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Hello everybody, There is a dairy farm in Turkey. The avarage milk yield of the cows is about 32 lt/day. For 10-15 days, it has seen cecal dilatation and right displaced abomasum very often. As I know either cecal dilatation or displaced abomasum is related wtih particul size of TMR and low forage: concantre ratio in TMR. But the interesting thing is, none of them is wrong. I mean there is 45% of forage on the TMR and the particle size is like to be. And the...
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Preamble. Green forage is the most preferred feed for dairy cows by the farmers. They feel happy while feeding their cows with green succulent fodder. In advanced countries the cows are let loose on pasture land to graze and forage at their free will. When the above facilities are unavailable farmers have to depend on dry fodder. Fiber is the slowly digested or indigestible material in...
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Yeast postbiotic helps reduce SCC in dairy cows under challenging conditions
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Take home messages Application of high-throughput technologies (e.g. microarrays, next-generation sequencing) in a systems biology framework to study the interactions of physiological state and nutrition on tissue function in livestock species is a powerful means to gain a holistic view of the underlying biological phenomena. Potential practical applications from applying such an approach in studies of mammary, adipose, and liver of dairy cows are...
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Introduction Water constitutes 60 to 70 percent of a livestock animal's body. Water is necessary for maintaining body fluids and proper ion balance; digesting, absorbing and metabolizing nutrients; eliminating waste material and excess heat from the body; providing a fluid environment for the fetus; and transporting nutrients to and from body tissues. Dairy cattle get the water they need by drinking and consuming feed that contains water, as well...
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INTRODUCTION Livestock in Pakistan are facing acute shortage of feed availability including concentrates, forages and pastures. Currently about 30 million tons of more feed is required to fulfill the gap of 4.16 and 21.3 million tons of crude protein (CP) and total digestible nutrients (TDN) respectively for the existing strength of dairy animals (Sarwar, 2006). The prevailing trend to bring more cultivated area under cash crops has further...
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Introduction Sugars are rapidly and extensively fermented in the rumen. Clearly, adding sugar to a diet already high in ruminally degraded carbohydrates should offer little benefit and could decrease digestibility of fiber, whereas diets that have less-than-optimal rumen degraded carbohydrate probably will benefit the most from addition of sugars. Therefore, dietary situations influence the optimum feeding rate of between 2.5 and 5% supplemental...
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More than 90% of the alfalfa planted in Argentina is used under direct grazing for beef and dairy production. In this context, bloat is a very serious problem and it is one of the main causes of animal losses. In 2002, INTA ( National Institute for Agricultural Technology, Argentina ) released ProINTA Carmina (Carmina), a non-dormant alfalfa cultivar selected for lower initial rate of dry matter disappearance. In several trials conducted at INTA units,...
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Introduction
Agricultural byproducts comprise main feed source for livestock production in south Asia. Due to unprecedented rainfall, paddy harvesting was severely affected during mid November last year. The paddy plants were thoroughly wet and straw from such plant were used by farmers. As a result Degnala disease, as reported by British animal health technician Sarlow in 1930 was seen in buffaloes in various parts of country. Now...
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KeyShure Effects of an organic source of copper, manganese and zinc on dairy cattle productive performance, health status and fertility
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When we talk about dairy nutrition our discussion is limited to energy, proteins, fats, etc., which have a direct impact on animal health and milk production. As a result, the nutrients that require less quantity, for example minerals or more precisely trace minerals, are often forgotten. Minerals are inorganic elements required for proper growth, body maintenance, nerve function, body enzymes and hormones. Trace minerals, as per the name, are required...
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INTRODUCTION Inflammation and pain mostly occurs in many diseases of goats. To provide improvement in animals well being and outcome, the condition of inflammation and pain is treated /managed by a variety of pharmacological agents of which NSAID´s is one of the important and large group (Aydin et al., 2003). Among NSAID´s diclofenac sodium is widely available veterinary drug. It is used for the symptomatic treatment and management of...
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Yeast postbiotic helps reduce SCC in dairy cows under challenging conditions
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Abstract: The objective of this study was to assess the influence of replacing percent of alfalfa by percent of Atriplex as roughage fed to animals. Twenty four adult Barki lambs weighed an average 49± 77 kg and age 3 years were used in six digestibility trials (4 animals each). Experimental diets were made of alfalfa and Atriplex nummularia in different ratios to each other as follow:R1: 75 % alf + 25% At, R2: 50 % alf + 50 % At, R3: 25 % alf + 75 % At, R4: 100...
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1. Introduction The interest in milk protein has risen in the last decades due to its nutritional (Meisel, 2004) and economical importance (Emmons et al., 2003). Higher true protein concentration in milk is desirable to attend the dairy industry demands (Emmons et al., 2003). Milk nitrogen fractions are composed of casein, whey proteins and non- rotein nitrogen (Depeters and Cant, 1992). Casein and...
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