Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 12

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  kroliki miesne
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The aim of the study was to determine the effect of back-crossing New Zealand White (B) and Californian (K) rabbits (n = 109) on meat quality indices such as protein, fat, water and ash content in meat, free water content and meat pH. The rabbits were fed pellets ad libitum, and slaughtered at a body weight around 2.5 kg, and an age of 12-13 weeks. Significant differences between purebred New Zealand White and Californian rabbits and their back-crosses in meat quality indices were not found. Significant differences were found only between B rabbits and (BK)K crosses in the water (B - 74.20%, (BK)K - 73.25%) and fat content in meat (B - 1.6%, (BK)K - 2.17%) and between B and K rabbits in free water content in meat (B - 12.37%, K - 9.90%). The values of these parameters were still within the standards of good meat quality, which indicate that back-crossing does not have a negative effect on meat quality parameters.
The aim of the study was to analyze the results of sanitary and veterinary examinations of rabbits carried out by the Veterinary Inspectorate in slaughterhouses in Poland in 2010-2018. In this period, 8,980,660 rabbits were examined. Lesions and quality deviations were found in 42,779 carcasses, i.e. 0.48% of all carcasses examined. The most frequent causes of the rejection of the carcasses and internal organs of the rabbits examined were sepsis and pyaemia (36,369 cases), followed by excessive emaciation (1,686 cases), upper respiratory tract disease (1,655 cases), other causes not specified by name (1,438 cases), and coccidiosis (1,318 cases). Abnormal exsanguination (303), parasitic diseases other than coccidiosis (67), infectious diseases (14), and leukemia (2) were much less often the cause of rejection. During the period analyzed, there was a decrease in the number of cases of coccidiosis (except in 2017) and other parasitic diseases, but there was a several-fold increase in the occurrence of sepsis and pyaemia (in the years 2015-2018). Compared with the results of veterinary and sanitary examinations of rabbits in 2000-2010, there was an increase in the number of rabbits slaughtered and a reduction in the percentage of carcasses with pathological changes and carcasses deemed unfit for consumption. In the years 2010-2018, there was also an increase in the number of cases of sepsis and pyaemia and a significant decrease in the percentage of parasitic diseases (mainly coccidiosis).
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.