Past qs 6 Flashcards
In rumen, Ruminococcus albus splits:
Cellulose
Definition of acid number:
mg KOH/g feed
Reason of obesity of rats having ob/ob is:
Insufficient leptin production
Its protein requirement is expressed in Crude Protein:
Turkey
According to Protein Evaluation System valid for Ruminants:
Each feed has two metabolizable protein values (MPN+MPE)
The energy requirement of Beef is expressed both by NE m and NEg because:
Efficiency of conversion between ME – NEm and ME – NEg are different
Knowing the digestibility co-efficient, it can be calculated the:
Amount of digestible nutrients
Plays an important role in the short-term control of feed intake in Ruminants:
Both (A+B)
Blood glucose level. Blood VFA level
Calculation of Biological Value (BV):
BV = retained N / N intake
Control of supply of β-carotene - blood serum level is a good indicator in:
Cattle / Sheep / Goat
The onset of sexual maturity is in strong correlation with the:
Body surface
It is valid for the acid-base balance of the animal organism, the more intensive a metabolism is:
The more acidic compounds will be produced
One of the role of the omega-6 fatty acid in the immunity is:
Protection of cell membranes
In case of eubiosis, the proportion of the main flora is:
90-99%
The VE value of wheat straw is 2.3, which means that:
1kg DM from wheat straw fed with 1kg concentrate together fills the animals X23 more than
1kg DM from standard grass
Its energy requirement for maintenance is expressed in the form of NEm:
Sheep
Calculation of apparent digestibility of CP:
(CP intake – CP output by faeces):CP intake
Prebiotics are:
Non-digestible microbial proteins
Ionophor antibiotics used in Ruminants can decrease production of:
Lactic acid
They are important constituents of the main flora in the gut:
Coliforms
In the Metabolizable Protein System, the energy supply of the rumen microbes depends on the:
Fermented organic matter
Principle of DEXA method?
A whole body scanner is used, that has 2 different X-ray scales
The meaning of FCM (Fat Corrected Milk):
FCM -> the real milk produced (kg)is converted into a theoretical milk having 4% of fat
Meaning of TDN:
Total Digestible Nutrients
The growth promoter effect of probiotics can be explained by their role:
Improvement if intestinal microbial balance
How is the DM intake approaching formula calculated in the case of Dairy Cows?
Metabolic BW + Fat corrected milk production
How is the DM intake approaching formula calculated in the case of Beef Cattle?
Metabolic BW + Net Energy
How is the DM intake approaching formula calculated in the case of Chicken?
Temperature + Egg production
Wendee Analysis, the part that does not contain N?
Proximate chemical analysis; estimation value for a material for feeding purpose without feeding trial, based on the separation of feed components.
What is the effect of induced mutation?
There is an increase in essential amino acid production.
How should the requirements be saturated during the first lactation of Dairy Cow?
The requirements should be increased by 20%
Should one calculate with the excretion content in the urine?
No. one should only calculate with the excreted content of the faeces.
How can the bacteria in the rumen be influenced?
Body temperature
Buffer capacity?
Bone, egg, milk
Rumen buffer?
NaHCO3 (best). MgO
What do you use when you calculate DE?
GE of feed and faeces
What bad effect do GIT parasites cause?
Less nutrients are available for host
How much an animal will eat is regulated by:
Short-time regulation
Kellner system:
NE value for body fat, starch-equivalent system
What is the average Discount Factor?
4
They are fat burners?
L-carntihine, Trivalent chromium Cr3+
What is the most important factor for micro-organisms reproduction in the rumen?
Moisture
What is metabiosis?
Relationship between 2 species, where one is depending on the products of the other. (commensalism)
Which barrier is built up by the epithelial cells in the immune system of the GI tract?
Anatomical
Metabolizable Protein means:
UDP content of feed + Microbial proteins in small intestine (Fermented organic matter = FOM)
This is to calculate MPE! (MP=MPE+MPN)
(For MPN its UDP and RDP)
Its main biological function is contribution in active CO2 transport in FA synthesis and GNG:
Biotin
Approximate DM intake of farm animals as % of Body Weight:
1.5 – 5.0 %
Meaning of Substitution Number:
Decrement of FORAGE DM intake (kg) when 1kg DM of CONCENTRATE is fed
Meaning of Discount Factor:
Decrement of nutrient’s digestibility when the feeding level is enhanced by 1 unit
Sex ratio is influenced by
Mn
