Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 2

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

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
1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Egg quality in multi-deck cage technology system

100%
Chmelnicna L., Solcianska L.
Polish Journal of Food and Nutrition Sciences
|
2007
|
tom 57
|
nr 4[A]
77-79
The quality of table eggs was monitored in hens housed in seven-floor cage technology system from the 25th to 54th week of hen’s age. We classified the eggs on the non-standard ones, i.e. double-yolked, with weight under 45 g, with egg shell deformation, with egg shell cracks and on the uneatable, i.e. with broken egg shell and without egg shell. We found out different light intensity (from 20 to 180 luxes) on individual floors. The laying period was divided to three parts and we realized 5 classifications of whole day egg production in every part. We found out the different share of eggs with egg shell cracks (0.31 – 0.47 – 0.68%) in relation to age of hens in the 1st – the 2nd – the 3rd part of laying cycle. The egg less than 45 g occurred only in the 1st period, but the occurrence of eggs with deformation of shell (0.31 – 0.47 – 0.68%) and the double-yolked eggs (0.67 – 0.52 – 0.54%) was relatively well-balanced. Total production of the non-standard eggs from the whole production was 1.33 – 1.44 – 1.46 in the parts of the cycle. The occurrence of non-standard eggs in relation to the number of the etage was followed as the most relevant in double-yolked eggs at 0.53 – 0.47 – 0.42 – 0.52 – 0.75 – 0.65 – 0.68% from the 1st to the 7th floor in direct relation to the light intensity. The other categories of non-standard eggs showed relatively equal values at every etage. We found out the share of the uneatable eggs in relatively low values at 0.85 – 0.70 – 1.24% from total production in the 1st, the 2nd and the 3rd part of the laying cycle. The results of these shares were found out at 90.8 – 91.8 – 76.8% of laying intensity of hens.
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Relationship between cage area and yield of the main elements of chicken carcasses

100%
Chmelnicna L., Solcianska L.
Polish Journal of Food and Nutrition Sciences
|
2007
|
tom 57
|
nr 4[A]
81-83
The aim of the research paper was to monitor and evaluate the effect of different cage area on live weight and carcass parameters of hybrid combination Ross 308 cocks and hens in 35 days feeding period. The experiment was performed in experimental practice of Department of Poultry Science and Small Animal Husbandry of Slovak Agricultural University Broiler chickens were kept in a three-deck cage system. Every cage had breadth 4320 cm2 (90 cm length, 48 cm width and 40 cm depth). One day chickens were randomly divided into three groups: The control group with 0.036 m2 of provided area for one chicken, the 1st experimental group with 0.0432 m2 of provided area for one chicken and the 2nd experimental group with 0.054 m2 of provided area for one chicken. The live weight of broiler chickens has been weighted in weekly periods at 1, 7, 14, 21, 28 and 35 days of age. Carcass parameters (share of breast from carcass, share of thighs from carcass and carcass value) have been specified in 6 chickens (nearby average live weight) from each group after the end of the experiment. At the end of the feeding period at the age of 35 days we noticed the similar tendency in live weight in cocks as well as in hens. We found out the highest average live weight in the 2nd experimental group with 0.054 m2 of provided area for one chicken (1677.67 g in cocks and 1540.42 g in hens) and the lowest average live weight in the control group with 0.036 m2 of provided area for one chicken (1488.83 g in cocks and 1402.25 g in hens). In carcass parameters of cocks we found out the highest average values of share of breast from carcass (28.38%) and carcass value (74.48%) in the control group with 0.036 m2 of provided area for one chicken and the lowest average values of these parameters in the 2nd experimental group with 0.054 m2 of provided area for one chicken. Only in the share of thighs from carcass we found out the same tendency as in the live weight. We observed the highest average values of share of breast from carcass (30.95%) in hens in the 2nd experimental group with 0.054 m2 of provided area for one chicken and share of thighs from carcass (33.62%) in hens in the 1st experimental group with 0.0432 m2 of provided area for one chicken and carcass value (74.64%) in hens in the control group with 0.036 m2 of provided area for one chicken.
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.