Adapted quality protein maize for broiler feeds
Lecture (Published version)
Metadata
Show full item recordAbstract
Maize has low nutritional quality due to poor content of essential amino
acids lysine and tryptophan in the dominant seed storage protein fraction,
zeins. However, Quality Protein Maize (QPM), a variety of opaque2 maize
but with good agronomic traits, can have 60% to 100% higher content of
lysine than standard maize. Monogastric animals (pigs, poultry, fish), like
humans, cannot synthesize lysine and tryptophan de novo and thus these
amino acids must be supplied through diets. QPM was primarily developed
for human consumption to overcome malnutrition in countries where maize
is staple food. Thus, QPM is of tropical origin and its adaptation to temperate
regions is frequently hampered by the retained exotic germplasm.
Development of adapted QPM hybrids is mainly aimed for feed industry. It
has been shown that substituting standard maize with QPM in feed diets
could be profitable due to improved weight gain, feed conversion ratio and
decreasing of dietary lysine supplementat...ion. Maize Research Institute,
Zemun Polje has a program on converting elite inbred lines through marker
assisted breeding into their QPM counterparts and developing commercial
QPM hybrids. Up to now, two inbred lines have been converted, while eight
lines have passed through three or four generations of backcrossing and one
generation of selfing. Tryptophan content in the converted selfed plants was
in the range from 0.080 to 0.093. Besides developing QPM counterparts of
commercial hybrids, one QPM hybrid obtained by crossing a converted elite
inbred line and an adapted tropical inbred line was developed and tested over
different locations and in different years. This hybrid is currently used in
feeding experiments with the objective to test effects of replacing standard
maize with QPM in diets on broiler performances.
Keywords:
adapted QPM / inbred lines / hybrids / lysine / tryptophanSource:
International conference: "The frontiers of science and technology in crop breeding and production conference", Belgrade, 8-9.06.2021. - Book of abstracts, 2021, 75-Publisher:
- Belgrade : Maize Research Institute, Zemun Polje
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200040 (Maize Research Institute 'Zemun Polje', Belgrade-Zemun) (RS-MESTD-inst-2020-200040)
Collections
Institution/Community
MRIZPTY - GEN AU - Kostadinović, Marija AU - Ignjatović-Micić, Dragana AU - Vančetović, Jelena AU - Delić, Nenad PY - 2021 UR - http://rik.mrizp.rs/handle/123456789/969 AB - Maize has low nutritional quality due to poor content of essential amino acids lysine and tryptophan in the dominant seed storage protein fraction, zeins. However, Quality Protein Maize (QPM), a variety of opaque2 maize but with good agronomic traits, can have 60% to 100% higher content of lysine than standard maize. Monogastric animals (pigs, poultry, fish), like humans, cannot synthesize lysine and tryptophan de novo and thus these amino acids must be supplied through diets. QPM was primarily developed for human consumption to overcome malnutrition in countries where maize is staple food. Thus, QPM is of tropical origin and its adaptation to temperate regions is frequently hampered by the retained exotic germplasm. Development of adapted QPM hybrids is mainly aimed for feed industry. It has been shown that substituting standard maize with QPM in feed diets could be profitable due to improved weight gain, feed conversion ratio and decreasing of dietary lysine supplementation. Maize Research Institute, Zemun Polje has a program on converting elite inbred lines through marker assisted breeding into their QPM counterparts and developing commercial QPM hybrids. Up to now, two inbred lines have been converted, while eight lines have passed through three or four generations of backcrossing and one generation of selfing. Tryptophan content in the converted selfed plants was in the range from 0.080 to 0.093. Besides developing QPM counterparts of commercial hybrids, one QPM hybrid obtained by crossing a converted elite inbred line and an adapted tropical inbred line was developed and tested over different locations and in different years. This hybrid is currently used in feeding experiments with the objective to test effects of replacing standard maize with QPM in diets on broiler performances. PB - Belgrade : Maize Research Institute, Zemun Polje T2 - International conference: "The frontiers of science and technology in crop breeding and production conference", Belgrade, 8-9.06.2021. - Book of abstracts T1 - Adapted quality protein maize for broiler feeds SP - 75 UR - https://hdl.handle.net/21.15107/rcub_rik_969 ER -
@misc{ author = "Kostadinović, Marija and Ignjatović-Micić, Dragana and Vančetović, Jelena and Delić, Nenad", year = "2021", abstract = "Maize has low nutritional quality due to poor content of essential amino acids lysine and tryptophan in the dominant seed storage protein fraction, zeins. However, Quality Protein Maize (QPM), a variety of opaque2 maize but with good agronomic traits, can have 60% to 100% higher content of lysine than standard maize. Monogastric animals (pigs, poultry, fish), like humans, cannot synthesize lysine and tryptophan de novo and thus these amino acids must be supplied through diets. QPM was primarily developed for human consumption to overcome malnutrition in countries where maize is staple food. Thus, QPM is of tropical origin and its adaptation to temperate regions is frequently hampered by the retained exotic germplasm. Development of adapted QPM hybrids is mainly aimed for feed industry. It has been shown that substituting standard maize with QPM in feed diets could be profitable due to improved weight gain, feed conversion ratio and decreasing of dietary lysine supplementation. Maize Research Institute, Zemun Polje has a program on converting elite inbred lines through marker assisted breeding into their QPM counterparts and developing commercial QPM hybrids. Up to now, two inbred lines have been converted, while eight lines have passed through three or four generations of backcrossing and one generation of selfing. Tryptophan content in the converted selfed plants was in the range from 0.080 to 0.093. Besides developing QPM counterparts of commercial hybrids, one QPM hybrid obtained by crossing a converted elite inbred line and an adapted tropical inbred line was developed and tested over different locations and in different years. This hybrid is currently used in feeding experiments with the objective to test effects of replacing standard maize with QPM in diets on broiler performances.", publisher = "Belgrade : Maize Research Institute, Zemun Polje", journal = "International conference: "The frontiers of science and technology in crop breeding and production conference", Belgrade, 8-9.06.2021. - Book of abstracts", title = "Adapted quality protein maize for broiler feeds", pages = "75", url = "https://hdl.handle.net/21.15107/rcub_rik_969" }
Kostadinović, M., Ignjatović-Micić, D., Vančetović, J.,& Delić, N.. (2021). Adapted quality protein maize for broiler feeds. in International conference: "The frontiers of science and technology in crop breeding and production conference", Belgrade, 8-9.06.2021. - Book of abstracts Belgrade : Maize Research Institute, Zemun Polje., 75. https://hdl.handle.net/21.15107/rcub_rik_969
Kostadinović M, Ignjatović-Micić D, Vančetović J, Delić N. Adapted quality protein maize for broiler feeds. in International conference: "The frontiers of science and technology in crop breeding and production conference", Belgrade, 8-9.06.2021. - Book of abstracts. 2021;:75. https://hdl.handle.net/21.15107/rcub_rik_969 .
Kostadinović, Marija, Ignjatović-Micić, Dragana, Vančetović, Jelena, Delić, Nenad, "Adapted quality protein maize for broiler feeds" in International conference: "The frontiers of science and technology in crop breeding and production conference", Belgrade, 8-9.06.2021. - Book of abstracts (2021):75, https://hdl.handle.net/21.15107/rcub_rik_969 .