Wyniki wyszukiwania - Biblioteka Nauki

1

Analysis of trend changes in degree-day values of heating and cooling: broiler breeding case

100%

Yucel A. , Atilgan A. , Erdem N. , Oz H.

Infrastruktura i Ekologia Terenów Wiejskich

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2017

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tom nr II/2

645--660

EN

An ideal broiler house should be designed to minimize the effects of weather changes and to keep indoor conditions at the comfort temperature of the animals. In this case, this should be done with minimum cost and possible lowest operating costs. Degree-day methods are used in order to have knowledge of the energy need of any structure. With this method, the measured values or meteorological data can be used to give information about the heating and cooling energy quantities of structures. Depending on the climate change in recent years, the changes need to be examined that have taken place in order to provide optimum comfort in animal barn. Isparta province and districts were selected as the study area. The longterm average daily temperature values are used from meteorological stations of the selected region. The heating and cooling degree day values were calculated for selected balance temperatures in broiler breeding. Linear Regression Analysis and Spearman Rank Correlation Test were conducted to determine the changes of these values due to climate change. In conclusion, it was determined that there were statistically significant trends at 5% significance level in Egirdir (21°C), Isparta (31-29-25 and 23°C), Kasimlar (18°C), Senirkent (31-29-25-23 and 21°C), Sutculer (all selected balance temperature values) and Yalvac (31-29-25-23 and 21°C) in terms of heating degree-day values, and in Atabey (29-25-23-21 and 18°C), Barla (25-23 and 21°C), Isparta (23-21 and 18°C), Senirkent (29- 25-23-21 and 18°C), Sutculer (29-25-23-21 and 18°C), Sarkikaraagac (25-23-21 and 18°C), Uluborlu (25-23-21 and 18°C) and Yalvac (25-23-21 and 18°C) in terms of cooling degree-day values. As a result, it has been concluded that more energy consumption will be a concern for heating and cooling of the broiler house that will be built in the province of Isparta.

2

Effects of essential oils and their combinations added to broiler diets on the mineral contents of some tissues and bone breaking strength

100%

Sevim B. , Cufadar Y.

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego

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2021

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tom 17

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nr 3

3

Comparison of feed utilization in broiler chickens of various origin

100%

Makowska M. , Michalik D.

Polish Journal of Natural Sciences

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2003

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tom 14

4

Regression equations for intravital assessment of breast muscles weight of chickens

100%

Michalik D. , Bochno R. , Wilkiewicz-Wawro E. , Lewczuk A. , Makowska M.

Natural Sciences

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2001

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tom 09

5

Microbial air contamination in poultry houses in the summer and winter

86%

Wojcik A. , Chorazy L. , Mituniewicz T. , Witkowska D. , Iwanczuk-Czernik K. , Sowinska J.

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tom 19

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nr 5

EN

The aim of the present study was to evaluate the degree of microbial air contamination in three laboratory rooms designed for raising broiler chickens under identical conditions, in the summer and winter. It was found that in identical poultry houses and under identical management conditions, certain differences can be observed with regard to temperature and humidity parameters and the degree of microbial air contamination, both in the summer and winter. The concentrations of aerobic mesophilic bacteria and fungi were higher in the winter than in the summer in all rooms. Various levels of microbial air contamination had no effect on broiler production results.

6

Antibody response to DNA vaccine against H5N1 avian influenza virus in broilers immunized according to three schedules

86%

Stachyra A. , Gora-Sochacka A. , Zagorski-Ostoja W. , Krol E. , Sirko A.

Acta Biochimica Polonica

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2014

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tom 61

|

nr 3

7

Evaluation of cassava distillers’ waste meal in the diet of broiler chickens

86%

Ojediran T. , Aroyehun B. , Emiola I.

Animal Science and Genetics

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2022

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tom 18

|

nr 2

8

The role of high-grade Bentonite powder in coccidiosis and its effects on feed conversion ratio and blood parameters in broiler chicken

86%

Hayajneh F. M. F. , Abdelqader A. , Alnimer M. A. , Abedal-Majed M. A. , Al-Khazaleh J. , Hayajneh F. M. F. , Abdelqader A. , Alnimer M. A. , Abedal-Majed M. A. , Al-Khazaleh J.

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9

Genetic characterization of Infectious Bursal Disease Viruses isolated from the vaccinated broiler chicken flocks in Egypt during 2015-2016

86%

Abou El-Fetouh M. S. , Abdallah F. M.

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tom 21

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nr 3

10

Effects of glycyl-glutamine on the growth performance and lipid deposition in Yue-Huang broilers

86%

Shu G. , Gao P. , Zhu X. T. , Jiang Q. Y. , Xu P. W. , Zhou G. X. , Sun F. W. , Fu W. L.

Journal of Animal and Feed Sciences

|

2007

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tom 16

|

nr 2

232-240

11

Growth performance and haematological and serum biochemical parameters of broiler chickens given varied concentrations of Polyalthia longifolia leaf extract in place of conventional antibiotics

86%

Shittu M. T. , Alagbe J. O. , Ojebiyi O. O. , Ojediran T. K. , Rafiu T. A.

Animal Science and Genetics

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2022

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tom 18

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nr 2

12

Analysis of changes in egg quality of broiler breeders during the first reproduction period

86%

Kontecka H. , Nowaczewski S. , Sierszula M. M. , Witkiewicz K.

Annals of Animal Science

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2012

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tom 12

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nr 4

13

The effect of a housing system on production results and slaughter analysis of slow-growing chickens

86%

Wnuk-Gnich A. , Lukasiewicz M. , Niemiec J. , Mroczek-Sosnowska N.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

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2016

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tom 55[2]

EN

The effect of a housing system on production results and slaughter analysis of slow-growing chickens. The study covered 720 Cobb x Zielononóżka kuropatwiana (Cobb x Zk) chickens reared until the 63rd day of life. On the day of introduction to a hen house, the chickens were randomly divided into 2 groups: a control group (reared indoors – ID, 360 birds) and an experimental group (reared with outdoor access – OD, 360 birds), with 5 replications in each group (72 birds). The differentiating factor in the study was the possibility of using grassy free ranges up to the 28th day of life in the OD group. Individual body weight, feed intake and mortality rate were monitored throughout the production period. On day 63, 20 birds were selected at random from each group for slaughter (10 cocks and 10 hens, 2 from each replication). The selected birds had body weights similar to the average body weight for a given sex in a group. In total, 40 carcasses were dissected. The study demonstrated a significant (P≤0.05) effect of the access to a free range on the final body weight of hens. The housing system affected also the mortality rate of Cobb x Zk chickens. The birds having the access to the free range were characterized by a significantly (P≤0.01) lower mortality rate (0.55%) compared to the control birds (1.11%). In addition, the study showed a significantly (P≤0.01) lower carcass weight of cocks from the experimental group (OD, 1491g) compared to cocks from the control group (ID, 1530g) and a significantly lower weight of breast muscles (317g and 338g, respectively). A similar tendency was observed in the case of hens, namely a lower carcass weight, breast muscle weight and fat weight in the group having access to grassy free ranges.The housing system had a significant effect of growth of the body weight of hens having the possibility of using grassy free ranges. The Cobb x Zk chickens characterized by high dressing percentage, similar contents of breast muscles and leg muscles as well as good health status, may be used as material for the rearing free range.

PL

Wpływ systemu utrzymania na wyniki produkcyjne i analizę rzeźną kurcząt wolno rosnących. Badaniem objęto 720 kurcząt Cobb x Zielononóżka kuropatwiana utrzymywanych do 63. dnia życia. W dniu wstawienia pisklęta losowo podzielono na 2 grupy: kontrolną (grupa bez wybiegu BW – 360 szt.) oraz doświadczalną (grupa z wybiegiem W – 360 szt.) po 5 powtórzeń w każdej (72 szt.). Czynnikiem różnicującym doświadczenie była możliwość korzystania z trawiastych wybiegów od 28. dnia życia w grupie W. Podczas trwania odchowu kontrolowano indywidualną masę ciała, spożycie paszy oraz śmiertelność kurcząt. W 63. dniu odchowu z każdej grupy wybrano do uboju po 20 szt. (10 kogutów i 10 kur, po 2 sztuki z każdego powtórzenia) o masie ciała zbliżonej do średniej dla danej płci w grupie. Przeprowadzono dysekcję łącznie na 40 tuszkach Zaobserwowano istotny wpływ (P≤0,05) dostępu do wybiegu na wzrost masy ciała u kur. Kurczęta mające możliwość korzystania z wybiegu charakteryzowała istotnie mniejszą (P≤0,01) śmiertelność (0,55%) w porównaniu z kurczętami bez dostępu do wybiegu (1,11%). Zaobserwowano istotnie (P≤0,01) mniejszą masę tuszki kogutów (1491g) z grupy doświadczalnej (W) w porównaniu z grupą kontrolną (BW) – 1530g oraz istotnie mniejszą masę mięśni piersiowych odpowiednio (317g oraz 338g). U kur obserwowano podobną tendencję w grupie mającej możliwość korzystania z trawiastych wybiegów. System utrzymania wpłyną istotnie na wzrost masy ciała kur mających możliwość korzystania z trawiastych wybiegów. Kurczęta Cobb x Zk charakteryzują się dobrą wydajnością rzeźną, zbliżonym udziałem mięśni piersiowych i nóg oraz wysoką zdrowotnością, mogą być wykorzystane jako materiał w chowie wolnowybiegowym.

14

Study on stability of fungal phytase as poultry feed additive

86%

Karaman M. , Gurbuz Y. , Ozkose E. , Ekinci M. S.

Journal of Animal and Feed Sciences

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2004

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tom 13

|

nr 2

313-321

15

Live vaccines in broilers and the human health

86%

Kapitancik B. , Jurcina A.

Bulletin of the Veterinary Institute in Puławy

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1998

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tom 42

|

nr 1

16

The effects of vitamin C-polyethylene glycol complex on growth performance and immunity in broiler chickens

86%

Hahn T. W. , Lohakare J. D. , Shim Y. H. , Han K. N. , Won H. K. , Park Y. H. , Chae B. J.

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tom 14

|

nr 1

17

The effect of Crplus3 in the form of yeast preparation on productive results of broiler fattening

86%

Arkuszewska E. , Zarski T. P.

Annals of Animal Science. Supplement

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2003

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nr 2

18

Effects of dietary enzyme on broiler chickens fed diets containing wheat bran

86%

Osei S. A. , Oduro S.

Journal of Animal and Feed Sciences

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2000

|

tom 09

|

nr 4

19

Response of broiler chickens to feed restriction during brooding under tropical conditions

86%

Teguia A. , Awah Ndukum J. , Kouomou S. B.

Journal of Animal and Feed Sciences

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2002

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tom 11

|

nr 1

20

Effects of dietary aflatoxin and sodium bentonite on some hormones in broiler chickens

86%

Eraslan G. , Essiz D. , Akdogan M. , Sahindokuyucu F. , Altintas L. , Hismiogullari S. E.

Bulletin of the Veterinary Institute in Puławy

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2005

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tom 49

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nr 1