Past Questions-English 2022 Flashcards
Increased urea in milk is caused by:
- Low content of non-structural carbohydrates (sugar, starch, pectin)
- Unbalanced protein intake of the ration (high proportion of CP and RDP, low proportion RUP)
Significant diagnostic value in the evaluation of the lactation curve has:
- Initial level of milk production, peak milk production and persistence of milk production
A suitable colostrum for feeding calves after calving should contain a minimum content:
- 50g of immunoglobulins per l of colostrum
Rumen absorption of Mg by activetransport is reduced by:
- The high NH3 content in the rumen content
- The high content of fat and K content in the feed ration
Absorption of Mg from the digestive tract of dairy cows takes place:
- In the region of the rumen and reticulum by active transport through the wall
Physiological differences in the digestion of nutrients in sheep compared to dairy cows are manifested:
- Passage of feed through the GIT is faster in sheep with shorter retention of feed in the rumen than in the intestine
Polioencephalomalacia manifests itself with a deficiency of:
- Vitamin B1 (thiamine)
The persistence of the lactation curve after the peak of lactation represents a decrease in milk in the range:
- In the range of 5-7% of the level of production in the evaluated compared to the previous month
In the nutritional prevention of hypocalcemia and parturition paresis in dairy cows, the following applies:
- Decreasing the daily in take of Ca at the level of 60-80 g/day and the value of K to 15 g/day
Nutritional causes of reproductive disorders are:
- Negative impact of atinutritional substances in feed on the reproductive cycle
- Unbalanced supply of energy, the content of fat an proteins, a saturation of mineral substances and vitmins
Enzootic ataxia of lambs manifests itself in:
- Copper deficit or increased proportion of sulfur and molybdenum
The coagulation activity of abomasum during milk feeding is decisively influenced by:
- The rate of milk coagulation in the abomasum
- The quality of the formed casein precipitate
By production of VFAs after fermentation of fibre in the large intestine, pigs obtain:
- Of 25-30% energy for maintenance
The method of ileal digestability of amino acids in feed is used for:
- The determination of the difference between the content of received amino acids and the absorption of amino acids
Ca homeostasis in animals is regulated by:
- thyroid hormoe calcitonin during the deposition of Ca in bone tissue
- Steroid hormone 1.25-dihydroxycholecalciferol to support absorption from the small itestine
- Parathyroid hormone for the release of Ca from bone tissue
Does lactose (milk sugar) affect the total volume of milk?
TRUE
For each kilogram of milk in the mammary gland of the blood is extracted about:
- 1.3g Ca
Forced intake of colostrum with the use of an esophageal tube presupposed the first administration in a dose:
- 10% of the birth weight of calves immediately after calvig
Overfeeding of CP with an increase in the level of nH3 in the rumen and urea in the serum manifests itself:
- By increasin the pH in the uterine secreation and has a toxic effect on the egg and sperm after insemination
- By reducing the synthesis ofprogesterone and stimulating the synthesis of PGF2a synthesis
The low-fat syndrome is caused by:
- Incomplete biohydrogenation and formation of trans-10 cis-12 conjugated linoleic acid
The chemical score is applied to evaluation:
- Of the analysed content of individual amino acids in the feed mixture compared to the standardized requirement for pigs
The low level of nutrition of ewes during the last six weeks of pregnancy results in:
- The increased lipomobilization and development of pregnant toxemia in ewes
In the pathogenesis of grass tetany apply the following:
- A low conncentration of carbohydrates together with high representation of CP and fat in the ration, which causes a decrease in the absorption og Mg from the rumen
In the pathogenesis of pregnancy toxemia in ewes, the following applies:
- Malfunction of carbohydrate nutrition (high proportion of fibre and deficit of starch) reduces the production of VFA and propionic acid with lipomobilization
Increased fat content in milk at the postpartum phase is found in:
- In obese dairy cows with the increased lipomobilization
