Temat: protein content - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Response of pregnant and lactating sows to reduced protein content in complete compound feed
Autorzy:: Gajewczyk, P.
Korniewicz, D.
Kolacz, R.
Dobrzanski, Z.
Korniewicz, A.
Tematy:: pregnant sow
lactating sow
reduced protein content
protein content
feed
piglet
milk composition
amino acid content
pig
animal production; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/31570.pdf Link otwiera się w nowym oknie
Opis:: The experimental material consisted of 42 sows divided into 3 feeding groups, each containing 14 sows fed complete compound feed varying in protein content. Protein and amino acid content of the feed fed to the control group was in compliance with Polish standards. Protein content in the experimental groups was reduced by 10% and 20%, respectively. At the same time, lysine, methionine, threonine and tryptophane content was supplemented to the level of the control group. All pregnant and lactating sows were fed individually. The condition of the sows was determined by measuring the thickness of backfat at the P2 position on days 30 and 105 of pregnancy and on day 25 of lactation. The data analyzed in the study included: the total number of piglets born, their body weight gain, milk composition, weaning-to-estrus interval and the farrowing rate. Protein content of the compound feed did not have a significant impact on the increment in backfat during pregnancy and losses during lactation. The sows fed compound feed with reduced protein content gave birth to 0.7 and 0.6 less piglets per litter than the control animals. However, due to lower losses, they bred 0.3 and 0.4 more piglets than the control sows. Average body weight of a piglet on day 21 was 0.5 kg lower in the experimental than in the control group. Dry matter, protein, fat and lactose content of the sow’s milk did not depend on protein content of the feed. The weaning-to-estrus interval in the experimental groups was one day longer than in the control group. The reproductive rate accounted for 86% and was comparable in all the groups.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Factors influencing physiological phosphorus content in pork meat
Czynniki wpływające na zawartość fosforu fizjologicznego w mięsie wieprzowym
Autorzy:: Tyszkiewicz, S.
Wawrzyniewicz, M.
Borys, A.
Tematy:: pork meat
phosphorus content
protein content
meatiness
post-slaughter weight; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/36934.pdf Link otwiera się w nowym oknie
Opis:: New studies on the relationship between physiological phosphorus concentration and protein content were performed, involving well-characterised research material: elements of 36 carcasses of pigs differentiated in respect of gender, post-slaughter weight (PSW) and meatiness measured as the lean meat percentage (LMP), determined on the ground of dissection. The contents of total phosphorus (PC), crude protein (BC), collagen (CC) and muscular protein (BM = BC – CC) in meat were determined. It was found that determination of crude protein alone was not sufficient for prediction of natural phosphorus content in pork meat and its products. Satisfactory estimation of phosphorus content in pork meat based on crude protein and collagen content was obtained. Influence of carcass meatiness and post-slaughter weight of pigs on phosphorus content in meat was demonstrated and considered in the equation of estimating phosphorus content in meat. No effect of pig gender on phosphorus content in meat was found.
Przeprowadzono nowe badania zależności zawartości fizjologicznego fosforu od zawartości białka w mięsie świń zróżnicowanych pod względem płci, i dobrze scharakteryzowanych pod względem ciężaru ubojowego (PSW) oraz mięsności określonej dysekcyjnie na podstawie zawartości chudego mięsa w tuszy (LMP). Badano zawartości w mięsie całkowitego fosforu (PC), białka ogólnego (BC), kolagenu (CC), oraz białka mięśniowego (BM)= BC – CC. Stwierdzono że oznaczenie samego białka ogólnego nie pozwala na dobre oszacowanie zawartości fizjologicznego fosforu w mięsie świń i w jego przetworach. Zadowalające oszacowanie zawartości fosforu w mięsie uzyskano w oparciu o oznaczoną zawartość białka ogólnego i kolagenu. Wykazano statystycznie istotny wpływ ciężaru ubojowego świń i mięsności tusz na zawartość fosforu w mięsie i uwzględniono go w uniwersalnym równaniu opisującym 93,3% zmienności zawartości fosforu w mięsie ze standardowym błędem oszacowania 0,0098%. Nie stwierdzono wpływu płci świń na zawartość fosforu w mięsie.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Response of spring barley to NPK and S fertilisation: yielding, the content of protein and the accumulation of mineral nutrients
Autorzy:: Kozera, W.
Barczak, B.
Knapowski, T.
Brudnicki, A.
Wichrowska, D.
Tematy:: mineral nutrition
yield of grain
protein content
accumulation
macroelements; Pokaż więcej
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Powiązania:: https://bibliotekanauki.pl/articles/1190223.pdf Link otwiera się w nowym oknie
Opis:: Barley is a cereal of great importance in the crop structure both in Europe and globally. The nutritional value of barley grain is largely shaped by agronomic factors, in particular by fertilisation, which can have a significant impact on the content of individual elements and their quantitative interrelations in grain. The aim of the research was to evaluate yielding, the content of protein and the accumulation of mineral nutrients by the grain of spring barley grown exposed to varied NPK and S fertilisation. The study was based on a three-factor field experiment in a randomised split-plot design with 3 replications. The 1st order factor (A) was fertilisation with nitrogen (n = 3): N1 – 40 kg ha-1, N2 – 80 kg ha-1, N3 – 120 kg ha-1. The 2nd order factor (B) was fertilisation with phosphorus and potassium (n = 2): P1 K1 – 30 kg P ha-1, 80 kg K ha-1; P2K2 – 45 kg P ha-1, 120 kg K ha-1. The 3rd order factor (C) was fertilisation with sulphur (n = 2): S0 – 0 kg ha-1 and S1 – 23 kg ha-1. The study showed that the application of 80 and 120 kg N ha-1 resulted in obtaining a significantly higher grain yield of spring barley and, usually, a higher grain protein content than did the application of 40 kg N ha-1. The increase in yield effected by sulphur fertilisation was significant in relation to the objects without sulphur fertilisation. The highest accumulation of nitrogen, phosphorus, potassium and magnesium was found following fertilisation with a dose of 80 kg N ha-1, as compared with the accumulation with grain from the experimental variant with the application of 40 kg N ha-1. As a result of sulphur application, considerably more nitrogen, phosphorus and potassium was obtained in the grain yield. Sulphur applied in combination with a dose of 120 kg N ha-1 usually caused a significant decrease in the accumulation of the tested macroelements.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Changes in the alkaloid, alpha-galactoside and protein fractions content during germination of different lupin species
Autorzy:: Chilomer, K
Zaleska, K.
Ciesiolka, D.
Gulewicz, P.
Frankiewicz, A.
Gulewicz, K.
Tematy:: alkaloid
alpha-galactoside
protein fraction
protein content
germination
lupin
plant species
amino acid; Pokaż więcej
Wydawca:: Polskie Towarzystwo Botaniczne
Powiązania:: https://bibliotekanauki.pl/articles/57288.pdf Link otwiera się w nowym oknie
Opis:: The objective of our studies were seeds of two lupin species Lupinus luteus L. and Lupinus angustifolius L. cvs. Lord and Graf respectively. Lupin seeds were germinated at 15 and 24°C and during two, three and four days. In the lupin sprouts antinutritional factors: alkaloids and raffinose family oligosaccharides (RFOs) and five nitrogen fractions: non protein (Nnp), albumin (A), globulin (G), glutelin and prolamin (Gt+P) and nitrogen residue fraction (Nr) were determined. The level of these compounds was compared with the proper ones of initial material (not germinated seeds). These studies showed that the germination process clearly affects the decrease of antinutritional factors: RFOs and alkaloids. The decrease level of these compounds depended on such factors like, lupin species and used germination conditions. It was found on the base of nitrogen analysis of particular protein fractions that the germination process of lupin seeds causes deep quantitative and qualitative changes in fractional composition of lupin proteins. It especially concerns the decrease of globulin and residual fraction content and distinct increase of Nnp fraction. The changes in other fractions were not so unequivocal in comparison with the mentioned above and depended on lupin species, temperature and time of germination. Qualitative changes of A, G and Gt+P fractions caused by germination were confirmed by gel electrophoresis (SDS-PAGE). The amino acid analysis of seeds and sprouts of Nnp fractions showed an increased content of Asp, Ser, Ala, Pronon essential amino acids (NEAA), and Val, Met, iLeu, Leu, Thressential amino acids (EAA). Simultaneously a decrease of Glu, Arg (NEAA), Phe, Lis, Cys (EAA) contents was observed. Generally the germination process causes the decrease of total NEAA and an increase of total EAA in Nnp fractions of both lupin species.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Influence of arsenic on selected biochemical blood parameters in rats fed diet with different fat and protein content
Autorzy:: Bronkowska, M.
Lozna, K.
Figurska-Ciura, D.
Styczynska, M.
Orzel, D.
Biernat, J.
Troskiewicz, P.
Bogusz, J.
Waligora, P.
Tematy:: arsenic
selected parameter
biochemical parameter
blood parameter
rat
diet
fat content
protein content; Pokaż więcej
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Powiązania:: https://bibliotekanauki.pl/articles/874621.pdf Link otwiera się w nowym oknie
Opis:: Background. Arsenic is widely distributed in the environment. The main routes of absorption of inorganic arsenic compounds are the lungs and the gastrointestinal tract. Arsenates both (III) and (V) are absorbed from the gastrointestinal tract in 55-95%, while the organic arsenic compounds in 75-85%. Arsenic poisoning leads to damage the activities and morphological changes in the stomach and intestines, causing the occurrence of nausea, vomiting and diarrhoea. Arsenic compounds may also be the cause of the development of certain cancers (lung, skin and liver). The first changes caused by arsenic poisoning usually remain unnoticed. Arsenic affects haematological and both lipid and carbohydrate metabolism. It also causes changes in the organs involved in metabolism, so biochemical parameters or enzymes activity are therefore a good indicator of poisoning changes. Objective. The aim of this study was to examine the influence of protein and fat content in diet on selected biochemical blood parameters in rats. Materials and Methods. Rats (11 groups n = 88) were fed with 5 types of diet: control, low-protein, high-protein, low- fat and high-fat. Animals received water without arsenic (control group) or water with 10 or 20 μg As/mL. Results. In animals fed a low protein diets, regardless of the dose of arsenic, it was a decreasing of total cholesterol, triglycerides, and glucose in serum observed, compared to the control group. In the groups fed with low-protein diet revealed a significantly less damage in the liver as compared to the control group. In animals fed high-protein diets and with varying addition of arsenic a significant higher concentration of various biochemical parameters were found, in comparison to the respective control groups. In animals fed the high protein diet and poisoned with 20 μg As/mL of the arsenic significantly higher liver damage were found, compared to control group. Conclusions. Symptoms of arsenic hepatotoxicity measured with enzyme activity were highest in the groups of animals fed with low-protein diet. The parameters of lipid and carbohydrate metabolism depended mostly on diet than the dose of arsenic.
Wprowadzenie. Arsen jest pierwiastkiem szeroko rozpowszechnionym w środowisku człowieka. Głównymi drogami wchłaniania nieorganicznych związków arsenu są płuca oraz przewód pokarmowy. Arseniany (III) i arseniany (V) wchłaniają się z przewodu pokarmowego z wysoką wydajnością rzędu 55-95%. Organiczne związki arsenu ulegają wchłanianiu z przewodu pokarmowego z wydajnością 75-85%. Zatrucia związkami arsenu prowadzą do uszkodzenia czynności oraz zmian morfologicznych w żołądku i jelitach, powodują wystąpienie nudności, wymiotów i biegunki. Związki arsenu mogą być również przyczyną rozwoju nowotworów (płuc, skóry i wątroby). Cel. Celem badań była ocena wpływu zawartości białka i tłuszczu w diecie szczurów na wybrane parametry biochemiczne krwi szczurów zatruwanych arsenem. Materiał i metody. Szczury (11 grup samców n=88) karmiono 5 rodzajami diet: kontrolną, nisko- i wysokobiałkową oraz nisko- i wysokotłuszczową, oraz zatruwano arsenem w ilości 10 i 20 μg/ml. Wyniki. U szczurów karmionych dietami niskobiałkowymi, niezależnie od dawki arsenu, stwierdzono tendencję do obniżania się stężenia cholesterolu ogółem, triglicerydów i glukozy w surowicy krwi w porównaniu do grupy kontrolnej. W grupach oxazwierząt, które spożywały dietę niskobiałkową wykazano istotnie statystycznie mniejsze uszkodzenie wątroby w porównaniu do grup kontrolnych. U zwierząt karmionych dietami wysokobiałkowymi oraz z różnym dodatkiem arsenu stwierdzono istotne statystycznie wyższe stężenie poszczególnych parametrów biochemicznych w porównaniu do odpowiednich grup kontrolnych. U zwierząt karmionych dietą wysokobiałkową zatruwanych arsenem w ilości 20 μg/ml wykazano istotnie większe uszkodzenie wątroby w porównaniu z grupą kontrolną. Wnioski. Objawy hepatotoksyczności arsenu mierzone aktywnością enzymów były największe w grupie zwierząt karmionych dietą niskobiałkową. Na parametry gospodarki lipidowej i węglowodanowej większy wpływ miała zastosowana dieta niż dawka arsenu.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The yield of selected cultivars of spring barley depending on the sowing rate
Autorzy:: Noworolnik, Kazimierz
Leszczyńska, Danuta
Kostiw, Piotr
Tematy:: spring barley
sowing rate
cultivar
grain yield
yield components
protein content; Pokaż więcej
Wydawca:: Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/2148725.pdf Link otwiera się w nowym oknie
Opis:: The aim of the study was to determine the response of new cultivars of spring barley in terms of the grain yield, yield components and protein content in grains, to an increase in the sowing rate. Microplot experiments were carried out in the IUNG-PIB experimental plot in Puławy, where the influence of the following sowing densities on the yielding of selected cultivars was studied: 250, 350 and 450 grains m-2. In the years 2011–2012, the following cultivars were investigated: Basic, Goodluck, Iron, KWS Olof, Natasia, and in the years 2012–2013 cultivars: Despina, Ella, Fariba, Gawrosz (hulless variety), Kucyk and Raskud. The experiments were carried out on a soil of a good wheat complex (heavy loamy sand deposited on light loam). An increase in grain yield (averaged across cultivars) was obtained as the sowing density was increased up to 450 grains m-2. At a high sowing rate (450 grains m-2), a significant increase in the grain yield of the following cultivars occurred: Basic, Iron, Despina and Gawrosz, and an increase in the yielding of other cultivars at this sowing rate, compared to the sowing rate of 350 grains m-2, constituted a trend. The largest increases in the yield at a high sowing rate, in comparison to the low rate in the first series of experiments (2011–2012), were demonstrated by the following varieties: Iron (29%), Basic (25%) and Goodluck (21%), and smaller increases were noted for the cultivars: KWS Olof (13%) and Natasia (10%). In the second series (2012–2013), higher yields at a high sowing rate, as opposed to a low sowing rate, were demonstrated by the following cultivars: Gawrosz, Raskud and Despina (31–34%), and lower yields by: Ella, Fariba and Kucyk cultivars (19–21%). The increase in grain yield at a high sowing rate was the result of a bigger number of ears per unit of area in all cultivars (especially in the Basic and Raskud cultivars). The difference in the weight of 1000 grains and the number of grains per ear of the investigated varieties as a consequence of the sowing rate was negligible. In the years 2012–2013, there occurred an increase in the protein content of grains at a high sowing rate. Among all the cultivars (on average considering the sowing rate), the highest grain yields were produced by Iron and Ella, the highest density of the number of ears per unit of area was demonstrated by Natasia, Kucyk and Ella. The cultivars Iron, Gawrosz and Raskud were found to have a significantly higher number of grains per ear than the remaining cultivars.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Foliar Boron Application and Row Spacing Effects on Growth, Yield and Protein Contents of Lentil (Lens culinaris Medic.)
Autorzy:: Khalaf, Yahya Bani
Aldahadha, Abdallah
Migdadi, Osama
Khasawneh, Yansi
Bsharat, Shahenaz
Nukta, Raed Abu
Tematy:: protein content
photosynthesis
row spacing
foliar boron
lentil; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/60184366.pdf Link otwiera się w nowym oknie
Opis:: Sufficient supply of foliar boron is essential for the appropriate productivity of lentil, particularly in poorly fertile soil. Therefore, field experiments were carried out at two locations (Maru and Mushaqar) in Jordan during the winter growing season 2021/2022 to evaluating the impact of foliar boron levels (0, 0.2, 0.3, and 0.6%) on the physiology, growth, yield, and grain protein contents of the local lentil variety (Jordan 2) under different row spacing (17.5 and 35 cm). The results revealed that the Maru location outperformed another location for increasing transpiration rate, plant height, days to flowering, yield, and yield attributes while reducing protein contents. Row spacing of 35 cm had significantly higher physiological performance, yield, and yield attributes than row spacing of 17.5 cm, except for instantaneous water use efficiency, straw yield, and thousand seed weight. Foliar 0.2% boron was the best treatment since it increased total chlorophyll content, stomatal conductance, transpiration, photosynthetic rate, and protein content by 9.5, 39.9, 22.2, 25.9, and 11.2%, respectively. Furthermore, foliar 0.2% boron improved grain yield higher at row spacing of 35 cm than those at row spacing of 17.5 cm. However, foliar 0.6% boron decreased grain yield by 8.5% and 3.6% at row spacing 35 cm and 17.5 cm, respectively, indicating this high concentration of boron acts as toxicity. Overall, it is highly recommended to use foliar rates of boron ranging between 0.2% and 0.3% to enhance the seed yield and protein content of lentils at different row spacing. These results suggest that optimum row spacing and foliar boron are useful approaches for lentil’s sustainability in semiarid areas.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Total protein and crude fibre content and dry matter digestibility of chosen legume and herb species from extensive grasslands
Zawartość białka ogólnego i włókna surowego oraz strawność suchej masy wybranych gatunków roślin bobowatych i ziół z ekstensywnych użytków zielonych
Autorzy:: Grzegorczyk, S.
Olszewska, M.
Alberski, J.
Tematy:: total protein
protein content
crude fibre content
dry matter
digestibility
legume
herb
plant species
extensive grassland
grassland; Pokaż więcej
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Powiązania:: https://bibliotekanauki.pl/articles/46637.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Practical aspects of the use of milking robots
Autorzy:: Borusiewicz, Andrzej
Romaniuk, Wacław
Winnicki, Stanisław
Skibko, Zbigniew
Zarajczyk, Janusz
Tematy:: dairy cow
milk
milk fat content
milk protein content
milk yield
milking robot; Pokaż więcej
Wydawca:: Instytut Technologiczno-Przyrodniczy
Powiązania:: https://bibliotekanauki.pl/articles/27312646.pdf Link otwiera się w nowym oknie
Opis:: The article presents results of monitoring carried out in barns with milking robots. The use of milking robots makes it possible, with proper stocking, to milk cows without human intervention. The analysis included all barns with Lely robots located in the Podlaskie Voivodeship in 2018-2021. In 2018-2019, there were seven such barns, and in 2020-2021 nine. In all barns, high milk yields were obtained of more than 1000 kg compared to the average milk yield obtained from stock of cows under monitoring in the Podlaskie Voivodeship. In 2021, four barns milked more than 9.5 thous. kg, three barns more than 10 thous. kg and two barns almost 12 thous. kg of milk. Fat and protein contents were typical for the breed. Three barns were monitored more closely in 2021, with varying numbers of robot milking stations in barns, i.e. A one, B two and C three milking stations. In 2021, over 700,000 kg was milked per stall in stall A, over 750,000 kg in B and over 850,000 kg of milk in C. The average milk per cow per milking was high, with over 11 kg in barn A, 12 kg in B and 13 kg in C.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Evaluation of the effect of various nitrogen forms on the Lupinus albus seed protein composition
Autorzy:: Ciesiolka, D
Aniszewski, T.
Wysocki, W.
Pilarski, R.
Gulewicz, K.
Tematy:: Lupinus albus
protein
seed
protein composition
botany
fractional composition
protein yield
protein content
lupin
nitrogen form; Pokaż więcej
Wydawca:: Polskie Towarzystwo Botaniczne
Powiązania:: https://bibliotekanauki.pl/articles/57059.pdf Link otwiera się w nowym oknie
Opis:: The influence of different nitrogen forms: (N2), [N2+(NH4++NO3-)], (NH4+), (NO3-), (NH4++NO3-) and (-NH2) on changes of albumin, globulin, prolamin-glutelin, non-fractioned nitrogen and non-protein nitrogen fractions of the protein seed of alkaloid-low content Lupinus albus L. cv. Butan has been studied. The experiments were performed in a greenhouse on perlite using in all cases the constant P, K, Mg and micronutrients (B, Zn, Mn, Cu, Mo, Fe) fertilization. The control was the treatment without any nitrogen support (Nd). It was clearly shown that nitrogen form has significant effect not only on the seed yield and seed protein content, but also on the composition of protein fractions and on the biological value of lupin protein. The main protein fraction of the seeds from all treatments were albumins (16.73-26.10 mgN/g). Among all the treatments, the highest level of globulin was observed for the seeds of plant growing with the symbiotic nitrogen form (15.26 mgN/g), while the lowest one for the control (Nd) (6.86 mgN/g). Symbiotic nitrogen (N2) treatment clearly increased the glutelin-prolamin fraction while the addition of mineral nitrogen (NH4++NO3-) decreased this fraction from 8.40 to 4.48 mgN/g. The lowest level of the glutelin-prolamin fraction was in the absence of any nitrogen (Nd). Non-protein fraction (Nnp) was highest in the case of plants treated with (-NH2) (9.92 mgN/g), and the lowest in the absence of nitrogen (Nd) (4.90 mgN/g). The level of non-fractioned nitrogen (Nr), with exception of [N2+(NH4++NO3-)] and -NH2 treatments, was closest to the start material. The protein fractions (albumins, globulins and glutelins and prolamins) were also electrophoretically characterized. These analysis confirmed the changes in protein composition of particular fractions under the effect of various nitrogen forms used as a fertilizer.
Dostawca treści:: Biblioteka Nauki

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