Past Question-Slovak 2023 Flashcards
Enzootic ataxia manifests itself:
- In areas with insufficient copper as a result
- High emissions of sulfur and molybdenum
- Due to degenerative changes in the white matter, the lamb has partially or completely paralyzed hind limbs
The adverse effect of increasing nitrogen containing substance in the feed ration on fertility manifests itself:
- A decrease in progesterone concentration
(By reducing LH secretion)
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 percipitate
The digestibility of the organic matter of the feed mixture for pigs is directly related to the content and chemical nature of the fibre in the feed. This relationship is expressed by Axelson’s equation, where an increase in fiber in dry matter KD by 1% leads to a decrease in the digestibility of organic matter (OD) by:
- 1.68%
Admission of heifers is carried out:
- At the age of 14-16 months with weight of 400-450 kg, fitness score 3.0-3.25
In nutritional stress the digestive system has an important position. For development of nutritional/digestive/reproductive(?) disorders following occurs:
- Malfunction/disturbance/impairment of the nutritional and protective function of the digestive tract
In the pathogenesis of grazing tetany the following are applied:
- High concentration of carbohydrates together with lower NL and fat in the KD, causing a decrease MG absorption from the rumen
The source for the synthesis of short- and medium- chain MK in milk fat are:
- Acetic acid after fermentation of structural carbohydrates
- B-hydroxybutyric acid
Anionic salts - are applied to dairy cows in the phase of preparation for childbirth with the aim of:
- Specific action in the adaption of the rumen metabolism of dairy cows
- Correction of metabolic alkalosis with a high presence of potassium and sodium in KD
- Increases the sensitivity of bone tissue for the release of Ca from bones to maintain normocalcemia after calving
The feeding regime of sows during pregnancy should ensure an average gain:
- A total gain of 45-50 kg, of which body weight 25-30 kg and the weight of the placenta and fetuses represent 20 kg gain
Causes increased urea in milk:
- Low representation of non-structural carbohydrates (sugar, starch, pectin)
(Unbalanced protein intake of the ration(high proportion of NL, BDB, low proportion of BNB))
The method of ileal digestibility 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
Nutritional reasons for the decrease in fat content in milk (confirmed by TMR analysis):
- Increased proportion of fat (incomplete biohydrogenation of fatty acids)
Zinc in relation to reproduction manifests itself:
(Indirect effect through the pituitary gland to influence gonadotropin hormones)
Prenatal development and growth of fetal skeletal muscles (myogenesis) is determined:
(Availability of nutrients and control of growth factors during the differentiation of the number of fetal muscle fibers)
(Availability of nutrients for increasing the size (hypertrophy) of fetal muscle fibers)
What are the characteristics of ewes nutrition in the first 30 days after admission (mating?):
- Severe malnutrition or high level of nutrition results in poor embryo survival
Increased fat content in milk at the postpartum phase is found in:
- In obese dairy cows with the increased lipomobilization
In case of nutrition-related disorders of the GIT, sheep suffer from:
- Less often rumen function disorders (acidosis, alkalosis) with more frequent occurrence of intestinal diseases (Clostridia/Clostridium)
Why is the method of fecal digestibility of amino acids referred to as “apparent digestibility”:
- Microbial proteins affected by colonic fermentation are also present in feces
- Endogenous amino acids from secreted secretions and the epithelium of the digestive tract are also represented in feces
What kind of substance you need to increase on the 90th day for pigs:
- by adding fat (and fiber)
What is the characteristic of myodystrophy in lambs:
- Deficient supply of natural antioxidants (vitamin E and selenium) in to the ratio of highly pregnant and lactating sheep
- Limited placental transfer of vitamin E from mother to fetus
The most numerous Ig group in colostrum is represented by the class group:
- IgG
Cause of pregnancy toxemia in ewes:
- Incorrect/improper phase nutrition of ewes accompanied by excessive feeding in the first phase of pregnancy
- Obesity of ewes, which show lower feed intake in the last weeks of pregnancy in more fertile animals
Low fat syndrome:
- Manifests itself with a high content of polyunsaturated fatty acids in the feed ration, which at low pH affects the biohydrogenation of fatty acids
- The content of trans-conjugated linolenic acid (CLA - C18:2 trans- 10-cis-12) synthesized in the rumen increases as a result of incomplete biohydrogenation when the pH drops
