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Effect of protease added in food on chicken carcase quality

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2020
bitstream_3834.pdf (749.6Kb)
Authors
Dosković, Vladimir
Bogosavljević-Bošković, Snežana
Škrbić, Zdenka
Lukić, Miloš
Rakonjac, Simeon
Petričević, Veselin
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Abstract
This study evaluates the effect of protease-supplemented diets containing different crude protein levels and sex on the weight and percent yields of individual meat classes (class I meat: breast, drumsticks and thighs; class II meat: wings, and class III meat back and pelvis) in Master Gris broilers (medium-growing strains). Chickens were fed maize-andsoybean- based diets. The fattening period lasted 49 days. Broilers were allocated to 3 dietary treatment groups: group C (standard diet, 0% protease), group E-I (0.2% protease, crude protein level reduced by 4% compared to C) and group E-II (0.3% protease, 6% reduction in crude protein compared to C). Results showed that no significant differences were observed in the weight of class I and class II meat between dietary treatments (P>0.05). Reduction of crude protein by 4% in diets supplemented with 0.2% protease affected the weight class III meat in male chickens (P<0.05). The feeding treatments did not influence the percentage... of class I and class III (P>0.05), while significant differences were observed in percentage of class II meat (between male broilers in C and E-I groups, P<0.05). The effect of sex was significant on both weight and percentage of all three meat categories (P<0.05).

Keywords:
broilers / protease / sex / class meat
Source:
Proceedings of the XI International Scientific Agricultural Symposium "Agrosym 2020", 2020, 829-834
Publisher:
  • University of East Sarajevo, Faculty of Agriculture, Republic of Srpska, Bosnia University of Belgrade,Serbia Institute of Agricultural Economics, Serbia Faculty of Agriculture, Serbia Mediterranean Agronomic Institute of Bari (CIHEAM - IAMB) Italy International Society of Environment and Rural Development, Japan Balkan Environmental Association (B.EN.A), Greece Centre for Development Research, University of Natural Resources and Life Sciences (BOKU), Austria Perm State Agro-Technological University, Russia Voronezh State Agricultural University named after Peter The Great, Russia Faculty of Bioeconomy Development, Vytautas Magnus University, Lithuania Enterprise Europe Network (EEN) Faculty of Agriculture, University of Akdeniz - Antalya, Turkey Selçuk University, Turkey University of Agronomic Sciences and Veterinary Medicine of Bucharest, Romania Slovak University of Agriculture in Nitra, Slovakia Ukrainian Institute for Plant Variety Examination, Kyiv, Ukraine National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine Valahia University of Targoviste, Romania National Scientific Center „Institute of Agriculture of NAAS“, Kyiv, Ukraine Saint Petersburg State Forest Technical University, Russia University of Valencia, Spain Faculty of Agriculture, Cairo University, Egypt Tarbiat Modares University, Iran Chapingo Autonomous University, Mexico Department of Agricultural, Food and Environmental Sciences, University of Perugia, Italy Higher Institute of Agronomy, Chott Mariem-Sousse, Tunisia Watershed Management Society of Iran Institute of Animal Science- Kostinbrod, Bulgaria Faculty of Agriculture, University of Banja Luka, Bosnia and Herzegovina Faculty of Economics Brcko, University of East Sarajevo, Bosnia and Herzegovina Biotechnical Faculty, University of Montenegro, Montenegro Institute of Field and Vegetable Crops, Serbia Institute of Lowland Forestry and Environment, Serbia Institute for Science Application in Agriculture, Serbia Agricultural Institute of Republic of Srpska - Banja Luka, Bosnia and Herzegovina Maize Research Institute “Zemun Polje”, Serbia Faculty of Agriculture, University of Novi Sad, Serbia Institute for Animal Science, Ss. Cyril and Methodius University in Skopje, Macedonia Academy of Engineering Sciences of Serbia, Serbia Balkan Scientific Association of Agricultural Economics,
Projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200088 (University of Kragujevac, Faculty of Agronomy, Čačak) (RS-200088)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200022 (Institute for Animal Husbandry, Belgrade-Zemun) (RS-200022)

ISBN: 978-99976-787-5-1

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URI
http://r.istocar.bg.ac.rs/handle/123456789/715
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