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    Wyświetlanie 1-3 z 3
    Tytuł:
    Badania laboratoryjne nad uszlachetnianiem słomy
    Laboratornye issledovanija povyshenija kachestva solomy
    Study on chemical composition of straws processed by different methods
    Autorzy:
    Kinal, S.
    Luczak, W.
    Pres, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/804256.pdf
    Data publikacji:
    1988
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Opis:
    Лабораторные исследования были проведены на ржаной и пшеничной соломе со сбора урожая в 1978 году. Повышение качества соломы проводилось путём выщелачивания, аммонизации, автоклавирования, силосования и дрожжевания. В исследуемом материале были определены основные кормовые компоненты, ADF и лигнин а также переваримость in vitro. Полученные результаты показывают, что в аммонизированной соломе значительно увеличилось содержание протеина (на около 6 раз). Так же в силосованной соломе и подданой дрожжеванию наблюдалось повышение содержания протеина (на 1,5 - 2 раза). Это было вызвано прибавками, какие применялись в продессах повышения качества соломы. Определение содержания лигнина и ADF не показало отчётливо положительного влияния ни одного из применённых мероприятий. Только в автоклавированной соломе замечено некоторое повышение ценности волокна и жира, а также высокий уровень лигнина и ADF по сравнению с обыкновенной соломой.
    The experiment was conducted with rye and wheat straws harvested in 1978. Straws were treated with sodium hydroxide, ammonia or yeast, and also - ensiled or autoclaved. Basic nutrients, ADF and lignine as well as in vitro digestibility were determined in the tested materials. The results showed that the ammonia and yeast tratments significantly increased the level of crude protein in straws (by several times), while that of ADF and lignine did not change in general. In autoclaved straws only, the contents of crude fibre, ether extract, ADF and lignine were higher than those in unprocessed material.
    Źródło:
    Zeszyty Problemowe Postępów Nauk Rolniczych; 1988, 350
    0084-5477
    Pojawia się w:
    Zeszyty Problemowe Postępów Nauk Rolniczych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of MgSO4 addition and the increasing doses of calcium and phosphorus during ending drying period on the occurrence of hypocalcaemia and hypophosphataemia in dairy cows
    Autorzy:
    Bodarski, R.
    Kinal, S.
    Pres, J.
    Slupczynska, M.
    Twardon, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/30552.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    The aim of the presented study was the estimation of optimal Ca and P levels applied before calving together with anionic salt addition, as an element of hypocalcaemia and hypophosphataemia prevention. The experiment was carried out during the dry period on 48 cows with similar milk yield in the previous lactation. Cows were divided into four groups. In group I (control) the amount of minerals was in accordance to NRC standards. In experimental groups (groups II-IV), two weeks before calving, cows received 140 g/day/head of hydrated magnesium sulphate to achieve dietary cation-anion difference at the level of about 50 mEq/kg DM. In groups II and III cows received calcium carbonate (100 g/day) 10 days a.p. (antepartum) (group II), or 5 days a.p. (group III), while cows in IV group received dicalcium phosphate (100 g/day) for 5 days a.p. Application of MgSO₄ × 7H₂O significantly affected the urine pH of cows from group III and IV 4-5 d. before calving – 6.45 and 6.81, respectively. The acidification of urine was observed after calving in group IV (7.13). In cows from group II (100 CaCO₃ 10 days a.p.) urine pH decline was not found (7.97-7.75). In that group the incidences of hypophosphatemia were noted (blood serum inorganic P level 1.41-1.46 mmol/l). Addition of magnesium sulphate prevented hypocalcaemia occurrence – 4-5 d. before calving the concentration of ionized Ca in blood serum was 1.11, 1.13 and 1.16 mmol/l (respectively for group II, III and IV). Reproductive functions were significantly improved after the application of CaCO₃ and CaHPO₄ for 5 days a.p. in comparison with control and group II – progesterone concentration in the blood serum on the 45th day of lactation was 1.396 – 1.409 vs 0.799 – 0.401. The correlation between progesterone and inorganic P level in serum was almost significant. Based on the obtained results a treatment optimal in prevention of hypocalcaemia and hypophosphataemia is the application of 50 g CaCO₃ and 50 g of CaHPO₄ for the last 5 days of the dry period together with MgSO₄ × 7H₂O given for 14 days a.p.
    Źródło:
    Polish Journal of Veterinary Sciences; 2013, 16, 4
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of administration of biotin and zinc chelate (Zn-methionine) to cows in the first and second trimester of lactation on their health and productivity
    Autorzy:
    Kinal, S.
    Twardon, J.
    Bednarski, M.
    Pres, J.
    Bodarski, R.
    Slupczynska, M.
    Ochota, M.
    Dejneka, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/32375.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    animal health
    animal productivity
    biotin administration
    cow
    first lactation trimester
    lactation
    methionine
    second lactation trimester
    zinc chelate
    dairy cow
    blood serum
    mineral level
    acid-base balance
    milk productivity
    milk composition
    progesterone
    haptoglobin level
    Opis:
    In cattle, the prevention of diseases might be possible using dietary methods, with nutritional optimization of feed rations. For years significant influence has been associated with the addition of biotin, methionine and zinc (each given individually, or as chelate – Zn-methionine). The aim of this study was to evaluate the influence of biotin or biotin + Zn-methionine additives on the health and performance of cows, in the first and second trimester of lactation. This study was carried out in 3 groups of cows, 30 animals in each group. In the first group cows were fed the usual fodder used on the farm. In the second group biotin at 10 mg/day/cow was added. In the third group both biotin at 10 mg/day/cow and Zn-methionine at 5 g/day/cow were added. The administration of biotin increased the milk yield and reduced the occurrence of retained placenta, as well as endometritis puerperalis. However, the high doses of biotin suppressed ovulation and oestrus symptoms in the investigated cows (low progesterone levels on days 15, 21 and 45 after calving). Zn-methionine in comparison to biotin had a lower effect on the milk yield in the cows. Moreover, its supplementation improved the milk content, as well as some of the blood parameters; it also decreased the number of somatic cells in milk. The concurrent administration of biotin and zinc-methionine seemed to be a good method for the prophylaxis of subacute mastitis and for the improvement of the high yielding dairy cows’ productivity.
    Źródło:
    Polish Journal of Veterinary Sciences; 2011, 14, 1
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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