Questions related to Feed Evaluation
For the determination of effective degradability of a feed, I need to use Naway Computer Programme. Can anyone help me to get this programme?
Thanks in advance.
i am learning to count feeds particle size: geometric mean diameter (GMD), geometric standard deviation (GSD) and descrete mean (dMEAN). I need to make sure I do the right procedure.
May anyone help me please? I attach some calculations for example.
Thank you very much.
What is the ideal pH, protein and moisture content required for such silage to be used as animal feed? What could be the potential toxic stuffs that could be present in silage?
The best pH of a good silage should be around 5.5. We are trying to develop a methodology that can measure the pH of cassava over time to ensure that the quality is maintained.
Because treated bio-solid amount appear to be a big problem, what is its effect on forages and fodder shrubs yield and on livestock (sheep and goat). Is their any references? Thanks.
Food and protozoal N and residual N are normally calculated while knowing the effect of different feeds on rumen fermentation patterns
Producers of emulsifier for animal diet (like lecthin and lysolecthins) define matrix value for their products. This matrix value in different diets is same?
In other word, lecthin or lysolecthin can apply their matrix in diets containing low level of oil like diets containing high level of oil?
while researching, most materials talk about already existing enzymes from flora and fauna in the GI tract, i would like to know about integrated enzymes and how they can aid the fish feed development and production.
Drinking water, acid secretion and digestion process are inter-related. I am interested to know, when and in what quantity one should drink water. In monogastrics and ruminants what should be the rules for optimization of digestion and assimilation process. If food changes to meat based item what changed we should do and so also for fibre and concentrate ratio in ruminants. Can anyone help me on this aspect
While the user reviews in the app stores are considered important, there might be biased opinions or flawed reviews. The flawed reviews might come from the developers of a similar kind of applications or from the customers who are biased to a particular application. The question is, how trust worthy are the reviews?. I wanted to know that whether there are any methods to evaluate and process the user reviews to know the trust worthy-ness of the users.
I am planning to conduct an experiment on broiler chicken with organic acids first time. I do not know dose and method of application of organic acids. So, can any body help me in this regards ?
Dear research colleagues,
How dairy cattle/buffaloes respond to two isonitrogenous diets with similar ingredient composition differing in starch levels through cereals (eg. maize) such as high starchy diet (compound feed with 40% starch) vs. low starchy diet (20% starch)? Supporting your answer(s) with relevant literature references would be highly appreciated.
I attached the data about my research. Can it be possible or not. do you have any idea about this matter
I currently want to formulate fish feed and bumped into these isonitrogenous and isocaloric diets. Can anyone explain what isonitrogenous and isocaloric diets are? Most journals I've read, manage to get approx. 30% of crude protein for their formulated feed. They manipulated the content of the formulated feed yet they manage to maintain the CP. How can I do it? What is a suitable software to formulated the animal feed other than winfeed? Can anyone give my a tutorial on how I can use winfeed software?
We were trying to formulate a ration for African civet and it was difficult to get feeding standards for these wild animals. Anyone, who has suggestion for our challenge?
Any one can suggest how the relative gas diffusivity changes after liquid pig manure (slurry), cattle slurry and anaerobic digested applied in a sandy loam soil?
Many nutritionists are not sure about the efficacy of them due to: (i) their lack of knowledge on active compounds and their dose; (ii) technical data sheets and labels do not provide with data about the plants/compounds contained nor their proportion/quantity.
Moreover, extraction and homogenization has been always a problem for manufacturers.
Finally, regulation is changing, limiting the number of allowed active compounds and their regulatory category/function: flavours vs growth promoters vs health promoters. Also, regulations will possibly force to declare all the compounds and their quantity.
All in all: how do you think this topic will evolve?
I am doing a trial on the effect of phase feeding on the reproductive performance of the Fiji sheep ewes under grazing condition. I have already flushed the ewes with brewers grain (dried) for a week, mated them from late November to December, 2015. Currently awaits for their 70 day after mated for feeding.
From 0 - 70 day mated, no feeding, at 70 day feeding starts (only brewers grain), at 100 day feeding (brewers grain and copra meal), at 120 day feeding (only copra meal with additional calcium) till lambing.
Knowledge of individual dry matter intake (DMI) is important
to select cows according to efficiency of milk production, to
improve profitability, and to reduce the environmental impact
of livestock. The alkane technique has been used widely to estimate feed intake primarily in grazing ruminants but also in other dietary situations. Do you provide some more information about this topic?
In some Costa Rican farms, people are using the tomato plant (stems + leaves) to feed sheep and dairy cows. We are analyzing this as a feed, but we need more information in order to do a better characterization.
I need to conduct an experiment with soil and different treatments. Each treatment needs an application of a different 14C compound to soil. Two of these treatments require the addition of slurry amended and non-amended with some organic additives provided by my supervisor. However, I need to make this slurry labelled with 14C and wonder whether I can supply 14C-glucose or 14C-cellulose to the normal livestock diet in order to have some labelled dung to be used as manure/slurry for my experiment. Unfortunately, I cannot find any method in the literature about this type of treatment and cannot use plant material under 14CO2 to have labelled forage for cattle.
Does anybody know of a good recipe for creating a neutral detergent solution for NDF analysis via reflux digestion (as by Van Soest).
I have been feeding some bark feeder beetles with twigs and would like to measure the amount fed in cm2.
The main issue is that the damages are not regular and have two different depths that I would like to measure separately. Does anyone had to do similar measurements?
The mechanical process e.g fermented and non - fermented of feed are important in order to increase the biological availability of feed, which methode is the best for feed of rabbits for example? thank you in advance
I want to measure the apparent crude protein digestibility in poultry excreta require specific steps to isolate the nitrogen from other sources than the diet (Urine, digestive tract). Are there any methods that doesn't require specific equipment?
Barley sprouted fodder is a 'live' feed and the secret is in the root where there are enzymes that increase the digestibility of other feedstuffs that have been used in total ration. In dairy ewes and ruminants generally, up to 30% concentrated feed can be replaced with the same results in productivity. The biggest problem in ruminant rations are the starches that often lead on lower pH in rumen and acidosis in bigger doses. It's better for these animals to feed them sugars rather than starch. Replacing corn or wheat in a dairy cow or goat's diets with dextrose and dried sweet whey ( >70% lactose) to a 2% level will increase the total milk yield and the % fat of the milk! Barley is 30% digestable and by sprouting (6-7 days) the digestibility increase to 80-90%. In a trial in a pig farm, replacing 2 kg of concentrated feed with 2 kg of barley sprouted fodder (15% DM) for farrow sows increased the body weight of piglets by 12% in 28 days. So, the sows gave more milk! What is your opinion about sprouted grain fodder?
For measuring the nutritive value of ingredient using in vitro trail, should the ingredient used alone in the in vitro trail or mixed with the whole diet then used for the trial?
I am looking for valid (representative) data from different grassland/rangeland regions of the world. The most needed information is crude protein, fibre fractions and energy values, but even one of these parameters could help.
I would like to investigate the physical properties of digesta in finishing pigs so that the most accurate descriptors of performance can be identified.
I need a rapid method to determine cyanogenic compounds in methanol extract or dry matter in pods of Acacia farnesiana.
I need test methods to determine antinutritional factors (total alkaloids, saponin, tannin, etc.) in animal feed samples.
We usually follow the NRC system, but it might not be suitable within our local conditions.
I am attempting to evaluate those arthropods that could be used as a food source for insectivorous mammals.
The ability to rear them in vitro will be limited by space, staff time and financial resources, but regular harvesting of arthropods in our geographic location may be too unreliable. I am hopeful that there are some species that, with relatively little investment, can provide a significant yield (even if only in a larval form) in a laboratory setting.
Does anyone have any thoughts?
We are culturing Isochrysis sp. in batches to be pooled together to obtain sufficient cell density. After the first batch is harvested, it is kept in a refrigerator waiting for the next harvest before pooling the cells together.
How far can the nutrient content differ/degrade between the two batches?