scholarly journals Genetic divergence of corn cultivars in relation to grain productivity, crude protein content and amino acid profile

2015 ◽  
Vol 10 (32) ◽  
pp. 3134-3149 ◽  
Author(s):  
Mendonca Alves Bruna ◽  
Cargnelutti Filho Alberto ◽  
Picolli da Silva Leila ◽  
Toebe Marcos ◽  
Burin Claudia ◽  
...  
2009 ◽  
Vol 78 (4) ◽  
pp. 571-577
Author(s):  
Eva Straková ◽  
Pavel Suchý ◽  
Ivan Herzig ◽  
Ladislav Steinhauser ◽  
Vlasta Šerman ◽  
...  

The objective of the study was to determine the amino acid profile in protein from long bones of the pelvic limb (femur, tibiotarsus) in ROSS 308 hybrid broiler chickens, and to examine whether it is sex-dependent.The study material was obtained from 120 Ross 308 broiler chickens (60 males and 60 females) at the end of the fattening (40 days of age). The average weight of birds was 2 694 ± 32.6 g for cockerels and 2 345 ± 23.9 g for pullets. The study birds did not show any clinical signs of leg diseases. The long bones of the right pelvic limbs (femur and tibiotarsus) were collected after bird slaughter and after removal of soft tissues, they were used for laboratory analyses. The crude protein content and the amino acid (AA) composition were determined and the obtained values were recalculated to 100% dry matter. The chemical score (CS) and the essential amino acid index (EAAI) were calculated for each AA. As a standard, the hen egg ovalbumin was used. The crude protein content in 100% dry matter shows that the content of crude protein was significantly higher (P ⪬ 0.01) in the femur (405.3 ± 17.21 g/kg) compared to the tibiotarsus (393.5 ± 12.68 g/kg). The same trends were found with regard to sex. Both males and females had significantly (P ⪬ 0.01) higher crude protein content in the femur (406.6 ± 19.34 g/kg and 404.1 ± 15.09 g/kg, respectively) than in the tibiotarsus (395.0 ± 12.16 g/kg and 392.1 ± 13.21 g/kg, respectively). Both bones showed the highest contents of Gly, Glu and Pro, and the lowest contents of Met, Tyr and His. The same trends were found with regard to chicken sex. Collagenous protein has lower contents of most AA in comparison to the standard protein - ovalbumin; especially contents of Ser, Val, Met, Ileu and Phe are substantially lower. On the other hand, collagenous protein had higher contents of Gly, Pro, His and Arg. The collagenous protein EAAI for the femur and the tibiotarsus was 59.0% and 57.4%, respectively. The knowledge of amino acid composition in protein from long bones of the pelvic limb in broiler chickens is important because it can help us understand the origin of bone disorders.


2012 ◽  
Vol 48 (3) ◽  
pp. 414-427 ◽  
Author(s):  
LIKAWENT YEHEYIS ◽  
C. KIJORA ◽  
E. VAN SANTEN ◽  
M. WINK ◽  
JÜRGEN DANIER ◽  
...  

SUMMARYThough bitter white lupin (Lupinus albus L.) is a traditional crop in Ethiopia, sweet lupins are new to the country. As a result, the nutritional value of low-alkaloid lupins has not been evaluated under Ethiopian conditions. Crude protein, amino acid and alkaloid contents of 16 cultivars of three annual lupin species grown in four lupin growing locations (Merawi, Finoteselam, Kossober-1 and Kossober-2) of Ethiopia were evaluated. Location × cultivar interaction was a significant source of variation for all traits (p < 0.0001). In all locations, blue entries had either similar (p ≥ 0.0584) or higher (p ≤ 0.0235) forage crude protein content than the Local Landrace, white group and yellow entry. Compared with the Local Landrace, white and blue entries, the sole yellow entry had higher (p ≤ 0.0148) seed crude protein content at all locations except at Kossober-2, where it had similar (p = 0.8460) crude protein content as white entries. The Local Landrace had the highest forage and seed alkaloid contents. However, sweet blue Vitabor and Sanabor entries had the lowest forage and seed alkaloid contents, respectively. Low alkaloid and higher crude protein contents of sweet lupins grown in Ethiopia show the possibility to use sweet lupin forage and seeds as cheap home-grown protein source for livestock feed and human food in the country. However, for more reliable information, the laboratory results need to be verified by animal and human evaluations of the crop.


2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Bimal Mohanty ◽  
Arabinda Mahanty ◽  
Satabdi Ganguly ◽  
T. V. Sankar ◽  
Kajal Chakraborty ◽  
...  

Proteins and amino acids are important biomolecules which regulate key metabolic pathways and serve as precursors for synthesis of biologically important substances; moreover, amino acids are building blocks of proteins. Fish is an important dietary source of quality animal proteins and amino acids and play important role in human nutrition. In the present investigation, crude protein content and amino acid compositions of important food fishes from different habitats have been studied. Crude protein content was determined by Kjeldahl method and amino acid composition was analyzed by high performance liquid chromatography and information on 27 food fishes was generated. The analysis showed that the cold water species are rich in lysine and aspartic acid, marine fishes in leucine, small indigenous fishes in histidine, and the carps and catfishes in glutamic acid and glycine. The enriched nutrition knowledge base would enhance the utility of fish as a source of quality animal proteins and amino acids and aid in their inclusion in dietary counseling and patient guidance for specific nutritional needs.


2009 ◽  
pp. 101-107
Author(s):  
Zoltán Mezei ◽  
Ágnes Pongrácznl Barancsi ◽  
Péter Sipos ◽  
Zoltán Győri ◽  
János Csapó

We analysed the crude protein content, amino acid content, amino acid composition of four forage and milling III. quality winter wheat varieties (Magor, Hunor, Róna and Kondor) from their samples from five following years (2003, 2004, 2005, 2006, 2007). We found that quantity of essential and non-essential amino acids rose with increase in crude protein content. On examination of protein amino acid composition in relation to crude protein content we found that the crude protein content increased the quantities of the non-essential amino acids also rose, while those of the essential amino acids decreased as the lysine, the limiting amino acid of wheat. We also established that, as crude protein content increased, the biological value of the protein decreased.


2008 ◽  
pp. 73-79
Author(s):  
Zoltán Mezei ◽  
Zoltán Győri ◽  
János Csapó

We analysed the crude protein content, amino acid content, amino acid composition of four forage and milling III. quality winter wheat varieties (Magor, Hunor, Róna and Kondor) from their samples from five following years (2003, 2004, 2005, 2006, 2007). We found that quantity of essential and non-essential amino acids rose with increase in crude protein content. On examination of protein amino acid composition in relation to crude protein content we found that the crude protein content increased the quantities of the non-essential amino acids also rose, while those of the essential amino acids decreased as the lysine, the limiting amino acid of wheat. We also established that, as crude protein content increased, the biological value of the protein decreased.


Author(s):  
М.В. Дятлова ◽  
Е.С. Волкова ◽  
Т.В. Шайкова

В исследованиях были изучены способы внесения комплексных удобрений: предпосевная обработка семян комплексным удобрением «Микромак» и двухкратное некорневое внесение препаратов «Кодима Р», «Кодафол», «Микроэл», «Страда N» на двух фонах минеральных удобрений. Внесение минеральных удобрений в дозах N40P50K70 в качестве основного удобрения способствовало повышению зерновой продуктивности на 0,29–0,66 т/га, или на 7,0–16,0% к контролю. Все изучаемые препараты — «Кодима Р», «Кодафол», «Микроэл», «Страда N» — при некорневом внесении, а также комплексное удобрение «Микромак» при обработке семян перед посевом оказывали положительное влияние на урожайность зерна озимой ржи. В вариантах с допосевной обработкой семян препаратом «Микромак» и двухкратным весенним внесением комплексного удобрения «Страда N» на фоне минеральных удобрений N40P50K70 зерновая продуктивность озимой ржи увеличилась на 0,46 т/га, а на фоне N40P50K70 + N20 + некорневая подкормка препаратом «Микроэл» — на 0,33 т/га за счёт формирования большего числа продуктивных стеблей и массы 1000 зёрен. Предпосевная обработка семян препаратом «Микромак» повысила урожайность озимой ржи в контрольном варианте на 0,31 т/га. Отмечено положительное действие данного препарата на элементы структуры урожая: увеличилось число продуктивных стеблей с 2,9 до 3,6 шт., масса 1000 зёрен выросла с 29,0 до 30,4 г. Содержание сырого протеина в зерне ржи в вариантах без обработки семян было на уровне 6,4–9,8%, а с обработкой препаратом «Микромак» — от 9,4 до 12,1%. Выход сырого протеина с урожаем зерна в данных вариантах был более высоким и составил 450–600 кг/га, что на 130–160 кг/га больше, чем в вариантах без обработки. Применение комплексных универсальных удобрений «Микроэл» и «Страда N» на фоне N40P50K70 обеспечивало дополнительный сбор сырого протеина на уровне 110 кг/га. The research tested the application of complex fertilizers such as seed treatment with “Mikromak” and double topdressing by “Kodima R”, “Kodafol”, “Mikroel”, and “Strada N” on two backgrounds of mineral nutrition. Application of N40P50K70 increased grain productivity by 0.29–0.66 t ha-1 or 7.0–16.0%. All the preparations positively affected grain yield of winter rye. “Mikromak” and “Strada N” improved grain productivity by 0.46 t ha-1 on the background of N40P50K70 while “Mikromak” and “Mikroel” — by 0.33 t ha-1 on the background of N40P50K70 + N20 due to high number of reproductive stems and 1000 kernel weight. Seed treatment by “Mikromak” improved productivity of control plants by 0.31 t ha-1. “Mikromak” positively affected the number of productive stems from 2.9 to 3.6 pcs, 1000 kernel weight increased from 29.0 to 30.4 g. Crude protein content reached 6.4–9.8% in untreated seeds and 9.4–12.1% — when using “Mikromak”. Crude protein yield amounted to 450–600 kg ha-1 under “Mikromak” application exceeding the untreated variants by 130–160 kg ha-1. Application of “Mikroel” and “Strada N” provided the increase in crude protein of 90–110 kg ha-1 on the background of N40P50K70.


1962 ◽  
Vol 59 (1) ◽  
pp. 93-94 ◽  
Author(s):  
T. Moran ◽  
J. Pace

The composition and feeding value of the common heather has been extensively studied by Thomas et al. (1934, 1935, 1953, 1955, 1956). He has shown that as the heather ages the protein content declines. Thus, samples from 2-year-old growths had a crude protein content (on a dry-matter basis) of 11·9% while that of growths 8 years old was 6·5–6·9%. Little or no information, however, appears to be available on the quality of heather protein, as judged by its amino acid composition.


1969 ◽  
Vol 54 (3) ◽  
pp. 582-584
Author(s):  
Manuel Soldevila

AMINO ACID CONTENT AND NUTRITIVE VALUE OF TUNA (THUNNUS SP.) FISHMEALS RELATIVE TO THEIR CRUDE-PROTEIN CONTENT


2018 ◽  
Vol 6 (1) ◽  
pp. 01-12
Author(s):  
M. A. Mofokeng ◽  
H. Shimelis ◽  
P. Tongoona ◽  
M. D. Laing

The presence of genetic diversity is essential for quality improvement to achieve balanced protein and amino acid levels in sorghum. The objective of this study was to determine the genetic diversity present among selected South African sorghum genotypes for protein and amino acid content and to select candidate lines for breeding or direct production. Fifty nine selected South African sorghum genotypes grown at two localities were analysed for crude protein content using near-infrared spectroscopy (NIR). Nineteen genotypes with high crude protein content from each location were selected and analysed for amino acid profiles using protein hydrolysates. The crude protein content of the genotypes varied from 7.69 to 16.18% across the two sites with a mean of 13.07%. The genotypes that had high crude protein content at both sites were Mammopane, AS16 M1, Macia-SA, AS19, Maseka-a-swere, and AS4. The genotype AS16cyc was the best candidate for high phenylananine content at 5.99%. Overall, the studied lines had great variability in their protein and amino acid profiles. Accessions with high protein content or amino acid values can be used in sorghum breeding programmes to increase grain nutritional quality.


1985 ◽  
Vol 25 (3) ◽  
pp. 722 ◽  
Author(s):  
CJ Rayner ◽  
DF Langridge

The protein and amino acid contents of bee-collected pollens from 10 indigenous and 16 exotic Australian plants were determined. Crude protein content showed a large variation with a range from 9.5% for Pinus radiata pollen, to 36.9% for Banksia ornata pollen. Pollens which were found to have high protein contents are those which are also highly favoured by apiarists whereas those with low protein content are considered to be nutritionally inferior pollens. The amino acid pattern for pollens from both indigenous and exotic plants indicated that, generally, the levels of amino acids in the pollens were above the bees' requirements. Tryptophan appeared to be the first limiting amino acid in Australian pollens for honeybees.


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