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Dairy cattle nutrition
Welcome to the page about Dairy cattle nutrition of Engormix; a source of knowledge on Dairy cattle nutrition.
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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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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Diets of Productive Sheep & Goats: Performances & Health - Dr. Cannas, University of Sassari
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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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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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Diets of Productive Sheep & Goats: Performances & Health - Dr. Cannas, University of Sassari
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Dr. Armagan Hayirli, Associate Professor at the Atatürk University, Turkey was present at the 34th Congress of Animal Production to present three posters about dairy nutrition. ...
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Dr. Daryl Nydam, Director, Quality Milk Production Services Animal Health Diagnostic Center, Cornell University, USA, talks to us during Phileo's Global Ruminant Symposium on Health & Management in Toulouse, France....
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Introduction Most cows undergo some level of hypocalcemia in the immediate postpartum period, with 40 to 70% of multiparous cows developing subclinical hypocalcemia (SCH; Reinhardt et al., 2011; Caixeta et al., 2015; Neves et al., 2017). Supplementing zeolite A in prepartum rations improves Ca status during the peripartum period (Thilsing et al., 2006; Pallesen et al., 2008). In European studies, feeding zeolite A for the 2 weeks prior to calving resulted in...
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Introduction Most cows undergo some level of hypocalcemia in the immediate postpartum period, with 40 to 70% of multiparous cows developing subclinical hypocalcemia (SCH; Reinhardt et al., 2011; Caixeta et al., 2015; Neves et al., 2017). Feeding prepartum rations low in Ca can improve Ca status postpartum (Kichura et al., 1982) but is difficult to achieve with commonly used feedstuffs in the US (Goff, 2006). In European studies, feeding zeolite A for the 2...
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For many years dietary protein binding has been considered the main property of tannins within animal nutrition, but more recent speculations have highlighted many other mechanisms of action for tannins. Antispasmodic effect on gastrointestinal passage, reduction of rumen starch degradation, local immune response modulation and antioxidant effect are some known examples, but perhaps the most important mechanism that explains the role of tannins, their strong and lasting impact on...
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Forages make up 45 to 95 percent of the feed that dairy animals receive on a farm. We usually think in terms of just the lactating cows. It is more difficult to think in terms of the whole herd in terms of the forage needs for the farm on an annual basis. Forages are the single-most important feed that we feed on the farm and the most variable in quality. It is critical to the profitable success of a farm that this part of the farm operation be carefully planned and optimized. We...
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