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Dairy cattle nutrition
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Introduction Some 2.6 million hectares are cultivating in the world, where the greatest use of cactus for forage or fodder occurs in Tunisia: 600,000 ha, Algeria: 150,000 ha, Mexico: 230,000 ha (39), South Africa: 525,000 ha and Ethiopia: 355,000 ha (46), Brazil: > 600,000 ha (50) and Southern Morocco regions: 90,000 ha (1). For Argentina there is information on area cultivated with Opuntia only for fruit production: 2,000 ha in 2003 (44). The major limitation to cultivation...
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Hi Has anybody known that metabolic energy for dairy cattle which is generated by Cornell Universty? ...
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Introduction The use of exogenous enzyme supplements for dairy and beef cattle has received much attention during the last several years. Research efforts have mainly focused on the application of fibrolytic enzymes as feed pre-treatment agents or as direct-fed supplements. Direct feeding of exogenous enzyme preparations is more practical and is supported by studies showing high stability of fungal carbohydrases in rumen fluid (Hristov et al., 1998; Morgavi et al., 2000) and...
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The LAB from SYNBIOTECH are able to produce organic acids and fermentation metabolites quickly and lower the pH value to inhibit the growth of spore-forming bacteria, fungi and other spoilage bacteria. Thus, achieving the optimum preservation of silages.
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Evaluating the total mixed ration stability of rumen protected choline products
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INTRODUCTION In the past 30 yr, one of the strategies to supply dietary minerals for dairy animals was to cover a high proportion (50 % or more) of dairy animal requirements with a mineral mix composition with minimal or, in some cases, no consideration of mineral content in the other dietary ingredients, i.e. forages, grains, and byproducts. In some cases, data from NRC and mineral chemical analysis...
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Introduction: Dairying has been considered to be one of the livelihood options for rural poor people, especially for landless, marginal, and small farmers in India and world. Generally, the productivity in dairy sector is low and smallholders are constrained by lack of access to quality feed. Although professionals have pointed out the importance of feeding, the ground realities or practices about concentrate feeds is entirely different. Due to shrinkage of grazing land and...
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Fat found in milk originates from three sources; de novo fatty acids synthesised in the milk gland of the cow (short-chain C4 to C14) comprise about 20-30% of total milk fatty acids, preformed fatty acids (long chain C18:0, C18:1 and C18:3) represent 35-40%, and the mixed group of fatty acids (C16) make up about 35%.
Research has shown that the percentage of milk de novo fatty acids is positively correlated with the percentage of fat and true protein in the milk. It has also been...
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ABSTRACT Coproducts of n-3 fatty acid production from algae are a potential feed resource for cattle. A study was conducted evaluating feeding algal biomass to cattle. Crossbred cattle (20 steers and 20 heifers, 255 kg initial BW, SD = 14) were individually fed 4 inclusions of condensed algal residue solubles (CARS; 0, 2.5, 5, 7.5% of diet DM) displacing dry-rolled corn in the finishing diet for a minimum of 97 d. Increasing CARS inclusion in the diet quadratically increased DMI...
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On any given day, the typical dairyman loses count of the challenges he deals with. From labor to mechanical issues, to sick or downed cows and paying the feed bill, the list goes on, seemingly forever.
One frequent challenge accounting for much of the drain on overall farm performance and profitability is lack of consistency. Consistency issues are pervasive throughout the typical dairy operation. There is hardly an area that cannot be adversely affected by challenges to...
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The addition of yeasts to the diet of ruminant animals exerts favorable effects on the microbial population and on the fermentative indicators of the rumen and as consequence; it improves health and animals productivity (Bruno et al. 2009 and Al Ibrahim et al. 2012). The Animal Science Institute (ICA) from the Republic of Cuba has a collection of yeast isolated from the ruminal ecosystem, which do not belong to Saccharomyces genus, showed potential as ruminal additive (Marrero et al....
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Evaluating the total mixed ration stability of rumen protected choline products
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Recently, Schäfers et al. (2017) published his study determining the effects of conjugated linoleic acid (CLA) and vitamin E as well as their interaction on biochemical and hematological variables and on leukocyte populations and their functionality.
They assigned 59 German Holstein cows between the 2nd and 9th lactation to 4 dietary groups in a 2 × 2 factorial design with the factors CLA and vitamin E.
In conclusion, the impairment of immune function caused by calving was more severe in...
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Does anyone have an opinion as to the expected bioavailability of different calcium sources, such as calcium orotate, vs calcium chloride, vs nano particle calcium carbonate or others? The goal would be to rumen protect the best calcium source and glucose powder with mini dose of digestive enzymes, nano particle selenium and nano particle trace mineral at 35% NRC for 10-20 days post fresh only. Please offer opinions and constructive criticism. There is also a tendency to stay...
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Components at certain times of the year increase (autumn/winter) or decrease (spring/summer), Is it possible to maximize components year round? What nutritional components could address my problem? ...
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Which chelation of minerals are best for dairy cattle between:- Amino acids chelation Methionine chelation Glycine chelation and Propionate chelation ...
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Evaluating the total mixed ration stability of rumen protected choline products
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INTRODUCTION As far as the profit is concerned to the farmers, the cost of the feed plays an important role. The dairy farmers in Karnataka are having limitations in terms of feedstuffs available in the region. Farmers faced major challenge to formulate the balanced least cost ration for pregnant cattle at the 3rd trimester where they not only need ration for maintenance of body but also for milk production and fetus growth with the available feedstuffs. There are several...
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The Dairy Herd informs us that in early May 2016 international milk prices slipped, diminishing hopes that prices were beginning to recover after two consecutive auctions with gains. The fortnightly Global Dairy Price auction showed that prices had dipped 1.4 percent to USD 2,203 per ton. A total of...
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Introduction The major use of rangelands is grazing or browsing by livestock and wild herbivores. Semiarid and arid rangelands are often fragile and subjected to accelerated soil erosion if not managed appropriately. If rangelands are mismanaged, so that plants fail to provide sufficient soil cover, the composition of plant community changes, resulting in reduced productivity and increased erosion. Continued abuse of the rangeland system can also result in severe land...
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