Rearing heifers is one of the most important activities undertaken in the framework of the operation of dairy cattle farms. Corn silage and perennial forage crops are an important feed for livestock. During their production is important to follow all technological procedures starting from the selection of seed forage crops to quality covering the silo. Failure to observe technological processes leads to problems of poor fermentation process which results in poor feed, which immediately reflected on the animals. The aim of this thesis was to evaluate nutritive value of silages. The literature review processes the nutrition of the heifers in the agricultural cooperative Zemědělská Klučenice, a.s. It includes also the composition of the feed ration, the share of individual components and their nutrient composition. Agricultural cooperative owns modern technology. The result there were no deficiencies in feed rations and in hygiene. In the conclusion, the author suggests possible solutions improve.

A contaminação ambiental por metais pesados é um sério problema enfrentado atualmente pela humanidade, e tem causado grande preocupação, devido ao seu acúmulo em plantas cultivadas, podendo afetar a cadeia alimentar de homens e animais. O metal pesado Cádmio (Cd) é um dos contaminantes mais difundidos no ambiente, devido às diversas atividades humanas, e pode causar sérios danos ao metabolismo celular com a inibição de processos fisiológicos importantes. Este trabalho teve como objetivo estudar a resposta do sistema antioxidante de cafeeiros expostos às concentrações de 15, 45 e 90 mg de Cd/planta. De acordo com os resultados as plantas que receberam 90mg/planta de metal foram mais afetadas, apresentando altas taxas de peroxidação lipídica. As atividades das enzimas antioxidantes, superóxido dismutase (SOD), catalase (CAT) e glutationa redutase (GR), foram reduzidas na presença do metal em todas as concentrações de Cd utilizadas. Os resultados sugerem que o sistema antioxidante dessas plantas responde conforme o tempo de exposição ao metal e de acordo com a concentração. / Environmental heavy metal contamination is a serious problem currently faced by humanity and has caused great concern due to its accumulation in cultivated plants, being able to affect human and animals food chain. The heavy metal Cadmium (Cd) is one of the most widespread contaminants in the environment due to a variety of human activities and may cause severe damage to the cellular metabolism through inhibition of important physiological processes. This project aimed to study the antioxidative system response of coffee trees exposed to concentrations of 15, 45 and 90 mg of Cd per plant. According with results obtained, plants which received the higher concentration of Cd were more affected, showing great rates of lipid peroxidation. The activities of superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR), were reduced in the presence of the metal for each Cd concentration used. The results suggest that these enzymes respond according to time length of exposure and to the concentration of metal used.

As pragas como besouros, ácaros, traças e fungos dentre outros, geralmente infestam produtos armazenados como: grãos, farelos, farinhas, café, fumo, frutas secas, rações animais, especiarias, plantas desidratadas, causando a depreciação visual e promovendo a deterioração dos produtos. Devido a isso a presente pesquisa teve como objetivo a utilização da radiação gama na desinfestação de alguns tipos de rações utilizadas para alimentação de animais de pequeno porte. No primeiro ensaio foram utilizadas embalagens de amostras grátis medindo 10 cm x 20 cm com capacidade de 70 gramas de substratos (ração) com 4 tipos de marcas existentes no comercio: (1), (2), (3) e (4). Cada tratamento constou de 10 repetições, que foram irradiadas com as doses de: 0 (controle) 0,5; 1,0 e 2,0 kGy, para se fazer a desinfestação das amostras. Após a irradiação (desinfestação) todas as embalagens irradiadas e mais a testemunha foram acondicionadas em caixas plásticas de 80 cm x 50 cm com tampa, onde foram liberados os insetos Lasioderma. serricorne, Plodia interpuctella, Sitophilus zeamais e Sitophilus oryzae, num total de 400 para cada caixa e mantidas em sala climatizada com 27 ± 2ºC e umidade relativa de 70 ± 5%. No segundo ensaio foram utilizadas embalagens confeccionadas com os materiais das embalagens do primeiro ensaio. Cada embalagem foi feita de 10 cm x 15 cm, com capacidade de 30 gramas de substratos (ração). Em cada repetição foi inoculado 10 insetos de cada espécie, num total de 400 insetos por caixa. As embalagens com substrato e inseto foram vedadas em seladora comercial, e irradiadas com as doses de: 0 (controle) 0,5; 1,0 e 2,0 kGy,. As embalagens irradiadas e a testemunha foram mantidas em sala climatizada já citada anteriormente. As contagens do número de insetos e furos nas embalagens foram feita após 60 dias. Concluiu-se que a embalagem da ração tipo número 4, foi a única susceptível ao ataque das espécies de insetos. A dose de 0,5 kGy foi suficiente para induzir a esterilização e conseqüentemente a desinfestação de todas as rações estudadas. / The pests as beetles, mites, moths and mushrooms among other, usually infest products stored as: grains, crumbs, flours, coffee, tobacco, dried fruits, animal rations, spices, dehydrated plants, causing the visual depreciation and promoting to deterioration of the products. The present research had as objective the use of the gamma radiation in the disinfestation of some types of rations used for feeding of animals of small size. In the first experiment packing of free samples were used measuring 10 cm x 20 cm with capacity of 70 grams of substrate (ration) with 4 types of existent marks in the trade: (1), (2), e (3), and (4). Each treatment consisted of 10 repetitions, that were irradiated with doses of: 0 (control) 0,5; 1,0 and 2,0 kGy, to do the disinfestation of the samples. After the irradiation (disinfestation) of the all irradiated packing and more the control was conditioned in plastic boxes of 80 cm x 50 cm with cover, where the insects were liberated Lasioderma. serricorne, Plodia interpuctella, Sitophilus zeamais and Sitophilus oryzae, in a total of 400 for each box and maintained at room acclimatized with 27 ± 2ºC and relative humidity of 70 ± 5%. In the second experiment packing were used made with the materials of packing of the first experiment. Each packing was made of 10 cm x 15 cm, with capacity of 30 grams of substrate (ration). In each repetition was inoculated 10 insects of each species, in a total of 400 insects for experiment per box. The packing with substrate and insect, were stamped in commercial machine and irradiated with doses of: 0 (control) 0,5; 1,0 and 2,0 kGy. The irradiated packing and the control were maintained at room acclimatized same the mentioned in the first experiment. The counting of the number of insects and holes in the packing were made after 60 days. Concluded that only the packing of the ration type number 4 was susceptive to attack of all species of insects. The dose of 0,5 kGy was sufficient to induce the sterilization and consequently the disinfestation of all studied rations.

Submitted by (edna.saturno@ufrpe.br) on 2017-02-14T15:34:06Z No. of bitstreams: 1 Joao Laurindo do Carmo.pdf: 601443 bytes, checksum: 5b1ebd80a5bc434c3a49e18a13d4f312 (MD5) / Made available in DSpace on 2017-02-14T15:34:06Z (GMT). No. of bitstreams: 1 Joao Laurindo do Carmo.pdf: 601443 bytes, checksum: 5b1ebd80a5bc434c3a49e18a13d4f312 (MD5) Previous issue date: 2003-08-04 / Three strains of tilapia, Oreochromis sp, were evaluated in a semi-intensive culture, during 112 days, from December 2002 to March 2003, through the use of twelve 50m2 earthen ponds belonging to Estação de Aqüicultura Continental Prof. Johei Koike of the Universidade Federal Rural de Pernambuco, Recife-PE, Brazil. The experiment was designed to contain three treatments according to the strains (nile, red and chitralada) and four replicates. For the ponds preparation were used lime (100g.m-2) and chicken manure (100g.m-2). After 50% of ponds filling it was used inorganic fertilizers (5g.m-2 of ammonium sulphate and 3g.m-2 of simple superphosphate) in order to stimulate the natural productivity. Tilapia juveniles averaging 50.98, 54.54 and 64.51g, respectively, for each strain (nile, red and chitralada) were stocked in randomly ponds. A extruded commercial ration with 32% crude protein was used during the 60 days and another one with 28% for the last 52 days. Water temperature, pH and dissolved oxygen were measured three times per week in the morning and in the afternoon. Alkalinity, total hardness, ortophosphate, total ammonia nitrogen, nitrate and nitrite were measured every two weeks in order to adjust the fertilization program.Fish growth was followed trough fortnightly measurements with approximately 30% of fish population. The main water quality variables (temperature = 31.45°C, pH = 7.23 and dissolved oxygen = 3.78mg.L-1 in average) maintained adequated to the fishculture, except dissolved oxygen that sometimes reached low levels in the morning. Growth and production data were differents (P≤0.05) among treatments. chitralada strain grew better than Vermelha than nile, with specific growth rate of 2.42, 2.06 and 1.77%.day-1, respectively. The weight gain and feed conversion ratio were higher (P≤0.05) to chitralada (396.42g and 1.17) than for red (225.49g and 1.72) and nile (147.00g and 1.80). In this culture system it was possible to maintain a reasonable biomass in the pond since the final biomass was 681.40, 403.60 and 352.60g.m-2, respectively for nile, red and chitralada strains, with significant difference (P≤0.05). Survival averaged 93% for chitralada and red different (P≤0.05) of nile strain 86%. These results show that the best tilapia strain for semi-intensive systems is chitralada, which can be recommended for culture in a commercial scale. / Foram avaliadas três linhagens de tilápia, Oreochromis sp em cultivo semi-intensivo, durante 112 dias, de dezembro de 2002 a março de 2003, utilizando-se doze viveiros de 50m2 escavados em terreno natural, pertencentes a Estação de Aqüicultura Continental Prof. Johei Koike da Universidade Federal Rural de Pernambuco, Recife – PE, Brasil. O experimento foi delineado para conter três tratamentos (nilótica, vermelha e chitralada) e quatro repetições. Para a preparação dos tanques foram utilizados calcário (100g.m-2) e esterco de aves (100g.m-2). Após receberem 50% de água, foram aplicados nos viveiros fertilizantes inorgânicos (5g.m-2 de sulfato de amônio e 3g.m-2 de superfosfato simples) como forma de estimular a produtividade natural. Juvenis de tilápias com peso médio de 50,98; 54,54 e 64,51 respectivamente, para cada tratamento (nilótica, vermelha e chitralada) foram estocados aleatoriamente nos viveiros numa mesma densidade de 1,5 peixes.m-2. Uma ração comercial extrusada com 32% de proteína bruta foi usada durante os 60 dias iniciais e outra com 28%, durante os últimos 52 dias. Temperatura da água, pH e oxigênio dissolvido foram medidos três vezes por semana, de manhã e a tarde. Alcalinidade total, dureza total,ortofosfato, nitrogênio amoniacal total, nitrato e nitrito também foram medidos a cada duas semanas para ajustar o programa de fertilização. O crescimento dos peixes foi acompanhado através de medidas quinzenais, com aproximadamente 30% de população. As médias das principais variáveis de qualidade de água (temperatura = 31,45°C; pH = 7,23 e oxigênio dissolvido = 3,78mg.L-1) mantendo-se adequadas para o cultivo de peixes, exceto o oxigênio dissolvido que algumas vezes alcançou baixos níveis no período da manhã. O crescimento dos peixes e os dados de produção foram diferentes (P≤0,05) entre os tratamentos. A linhagem chitralada cresceu melhor do que a vermelha e nilótica, com taxa de crescimento específico de 2,42; 2,06 e 1,77%.dia -1, respectivamente. O ganho de peso e conversão alimentar aparente se apresentaram mais altas (P≤0.05) para a chitralada (396,42g e 1,17) do que para a vermelha (225,49g e 1,72) e nilótica (147,00g e 1,80). Neste sistema de cultivo, foi possível manter uma biomassa razoável nos viveiros, onde a biomassa final foi de 681,40; 403,60 e352,60g.m-2, respectivamente, para nilótica, vermelha e chitralada, com diferença significativa (P≤0,05) entre elas. A sobrevivência média correspondeu a (93%) para a chitralada e vermelha, sendo diferentes (P≤0,05) em relação a nilótica (86%). Dessa forma constata-se que a linhagem chitralada apresentou melhor desempenho, sendo portanto recomendada para o cultivo semi-intensivo em viveiros.

Made available in DSpace on 2016-04-28T14:59:47Z (GMT). No. of bitstreams: 1 2009 - Stela Gomes Pelegrino.pdf: 247744 bytes, checksum: edcaaef4e983d4522513a9fcb967acdc (MD5) Previous issue date: 2008-04-29 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / The search of better quality of the milk induces that changes and advances should be reached trought manipulation of de diet of the animals. The evaluation of the food absorption processes have been a very important in the investigation of the animal nutrition. The objective was to evaluate the on ruminal fermentation parameters in high yielding dairy cows fed total mixed ration (TMR). Eighteen Holstein cows in initial third of lactation were distributed to three groups. Cows were fed ad libitum thirty a day. The diet containing corn silage, barley, cottonseed and commercial ration, with forage:concentrate ratio of 45:55. Ruminal fluid was used for sampling at 0, 2, 4 and 6 hours after first meal for determination of ammonia, pH and VFA. The daily average intakes of nutrients, coefficients digestibility and milk production was evaluated how index of the production. There was no effect for averages of molar ruminal concentration ammonia. Was different, 4 hour after fed for the parameters: pH, VFA, acetic, butyric acids evidencing intense ruminal fermentative activity. Total VFA and pH was different in 4 hour after fed. The values of the propionic acid had followed the same trend of the AGV but they had not presented significant difference, the relation acetate: propionato was remained above of 3, keeping adjusted the text of fat of milk. This study demonstrates that the use of total diet provided a ruminal environment with adequate conditions of fermentation without large oscillations, what it diminishes the incidence of metabolic riots in cows of high production. / As melhores mudan?as na produ??o do leite podem ser atingidas atrav?s da manipula??o da dieta dos animais. Avaliar os processos de absor??o de alimentos direcionados para a s?ntese do leite tem sido de grande import?ncia nas pesquisas de nutri??o animal O objetivo deste trabalho foi avaliar os par?metros ruminais de vacas de alta produ??o alimentadas com dieta total. Dezoito animais da ra?a Holandesa, no primeiro ter?o de lacta??o, foram divididos em tr?s grupos, por ordem de pari??o. Os animais receberam dieta total ? vontade (ad libitum) tr?s vezes ao dia composta por silagem de milho, cevada ?mida, caro?o de algod?o e ra??o comercial, com a rela??o volumoso:concentrado de 45:55. Amostras de l?quido ruminal foram coletadas nos hor?rios de 0, 2, 4 e 6 horas, ap?s a alimenta??o, no per?odo da manh?, sendo utilizadas para determina??es das concentra??es de am?nia, pH e AGV do l?quido ruminal. Os valores de consumo m?dio di?rio, coeficiente de digestibilidade, produ??o de leite foram avaliados como indicadores da produ??o. N?o foi observado efeito significante nas concentra??es m?dias ruminais de am?nia. Na quarta hora ap?s a alimenta??o foi observada diferen?a significativa dos par?metros: pH, AGV total, ?cidos ac?tico e but?rico, evidenciando a intensa atividade fermentativa ruminal. Os valores m?dios de ?cido propi?nico seguiram a mesma tend?ncia dos AGV mas n?o apresentaram diferen?a significativa, a rela??o acetato:propionato manteve-se acima de 3, mantendo adequado o teor de gordura do leite. Este trabalho demonstra que o uso de dieta total proporcionou um ambiente ruminal com condi??es adequadas de fermenta??o sem grandes oscila??es, o que diminui a incid?ncia de dist?rbios metab?licos em vacas de alta produ??o.

There has been limited investigation as to whether a predominantly forage-based diet can provide adequate amounts of limiting amino acids (AA) to horses. The first objective was to determine if AA supplementation of AA believed to be limiting to protein synthesis in forage-based diets would affect measures of whole-body protein metabolism in sedentary mature horses. The effect of forage type (timothy or alfalfa) and AA supplementation (lysine, threonine or histidine) on plasma urea nitrogen (PUN) and AA concentrations and measures of whole-body phenylalanine kinetics were evaluated. There was no effect of either forage type or AA supplement on rates of whole-body protein synthesis (P > 0.05). The second objective was to determine the effects of either timothy or alfalfa hay supplemented with either a high or low protein ration balancer on measures of whole-body protein metabolism in yearling horses. The effect of forage type and the ration balancer protein level on concentrations of PUN, plasma AA and measures of wholebody phenylalanine kinetics were evaluated. There was no effect of treatment on average daily gain (P = 0.18). When horses consumed the alfalfa-based diets, rates of phenylalanine flux, oxidation and use for protein synthesis were greater than when they consumed timothy-based diets (P < 0.05). Phenylalanine use for protein synthesis was not affected by the protein level of the ration balancer (P = 0.3). Yearling horses achieve greater rates of protein synthesis when fed alfalfa-based diets, compared to timothy-based diets, supplemented with a low protein ration balancer.

Zugl.: Giessen, Univ., Diss., 2003

Cette ��tude porte sur le mouvement dit de la "��Th��ologie de la lib��ration��" en Ha��ti. A partir d'une approche historique, elle retrace le parcours du mouvement de 1970 �� 2004, en mettant en ��vidence ses r��seaux et ses acteurs.Bien que l'apparition r��elle de ce mouvement soit tr��s r��cente dans la soci��t��, son d��veloppement a ��t��, n��anmoins, fulgurant. Il est perceptible �� travers de nombreuses structures de base comme��: les Communaut��s eccl��siales de base, commun��ment appel��es TKL (Ti Kominote Legliz), les groupements paysans et les centres de formation. Lieu de conscientisation, de fraternit�� et de solidarit��, ces structures ont jou�� un r��le tr��s important, dans les ann��es 80, non seulement dans la redynamisation de l'��glise catholique mais aussi dans la diffusion de la "��Th��ologie de la lib��ration��" en Ha��ti. Leur force a ��t�� d��montr��e sous la dictature tant par leurs prises de position que par leurs actions qui ont largement contribu�� �� la chute du r��gime.A leur t��te se trouvent des pr��tres, issus de milieux sociaux et de Congr��gations divers dont la dictature avait contraint un certain nombre �� l'exil. Si l'exil a ��t�� l'une des sanctions les plus courantes sous la dictature, il ne se r��v��le pas, n��anmoins, la plus efficace puisqu'il a permis le d��veloppement, par ces pr��tres, d'un puissant courant anti-duvali��riste fortement influenc�� par la "��Th��ologie de la lib��ration��", dont les journaux, les revues et les associations de base seront les principaux vecteurs et qui sera �� l'origine du d��part de Jean-Claude Duvalier, le 7 f��vrier 1986. Sa cons��cration est marqu��e par l'��lection, en 1990, de Jean-Bertrand Aristide, l'un d'entre eux. Qui sont ces acteurs��? En quoi consiste leur travail��? Quels sont les principaux r��seaux impliqu��s dans ce mouvement��? Existe-t-il une r��elle convergence de vues entre les id��es de la th��ologie de la lib��ration et celles d��fendues par ses acteurs en Ha��ti ? En quoi les id��es de Jean-Bertrand Aristide concordent-elles avec celles de la "��Th��ologie de la lib��ration��"��? Sa politique pr��sidentielle s'inscrit-elle, ou non, dans la continuit�� de la "��Th��ologie de la lib��ration��" ? Ce sont les principales questions auxquelles cette ��tude tentera de r��pondre.

Pienininkystė yra svarbi mūsų krašto gyvulininkystės šaka. Pagal Lietuvos žemės ūkio ir kaimo plėtros strategiją pieninė galvijininkystė pripažinta viena iš prioritetinių žemės ūkio šakų. Mūsų šalyje 2006 metais pieno gamyba sudarė 23 % bendrosios žemės ūkio produkcijos. Pieną bei jo produkciją gamina daugiau nei 180 tūkst. ūkio subjektų. Pastaraisiais metais apie 50 proc. perdirbto pieno yra eksportuojama. Todėl labai svarbu gerinti šios gamybos efektyvumą. 2006 metais iš vienos karvės Lietuvoje vidutiniškai primelžta 4484 kg pieno arba 12 proc. daugiau nei 2002 metais. Nors šalyje vidutinis pieno primilžis iš karvės nuolat didėja, bet kol kas yra vienas mažiausių ES. Pienininkystei plėtoti yra palankios gamtinės sąlygos, šalyje veisiami galvijai gerai prisitaikę prie esamos pašarų bazės, jų genetinis produktyvumas gana aukštas. Tačiau dėl konkurencijos augant reikalavimams šalies ir užsienio rinkose, reikia siekti efektyvesnio pieno ūkio vystymo. Pieno gamyboje daugiau nei 60 proc. išlaidų tenka pašarams. Tod��l jų gamybos kaštai, kokybė ir maistingumas daro didžiausią įtaką pieno gamybos ekonomiškumui. Mažinant pieno gamybos savikainą, labai svarbu pasiekti aukštą pašarų maisto medžiagų konversiją. Efektyviau panaudoti pašarus ir, esant tiems patiems ištekliams, gauti daugiau produkcijos padeda įvairių pašarų paruošimo šėrimui būdų taikymas. Todėl, tobulinant produktyvių karvių šėrimo technologijas, ieškoma naujų, pažangesnių pašarų paruošimo būdų ir vienas iš jų gali būti... [toliau žr. visą tekstą] / Dairy farming has always been a primary important branch of cattle breeding in our country. Dairy farming is considered to be the essential direction of the strategy of agricultural development in the country of Lithuania. Dairy production made 23% of total agricultural production during the year of 2006. Milk and dairy production is produced by more than 180 thousands of agricultural subjects. About 50% of produced milk has been exported recently. It explains why economical efficiency of the production is especially important. Despite the fact that an average milk production per cow has been increasing recently, but it remains among the lowest ones in the EU. During the year of 2006 an average milk production per cow made 4484 kg of milk, 13% more than in 2000. It should be stated that our country is distinguished by quite favorable conditions for dairy farming. The cattle bred in the country are adjusted to the existing forage basis and the potential of their genetic productivity is rather high. Nevertheless, the higher requirements caused by the competition on the inner and foreign market force to seek for the more efficient development of dairy farming. About 60% of expenditure in milk production is spent on forage. That is why costs of forage production, quality and nutritional value mainly determine milk production economy. In order to decrease milk production costs it is primarily important to reach high conversion of forage nutritional substances. For more effective... [to full text]

Darbo tikslas – išanalizuoti audinių šėrimą bei jo ypatumus, panaudojant racionus su skirtingu baltymų kiekiu ir skirtingu maisto medžiagų santykiu juose, stebėti laktuojančių audinių pieno produkcijos lygį, audinukų augimo spartą bei išsivystymą. Bandymo uždaviniai buvo: 1. Atrinkti analoginius gyvūnus ir juos suskirstyti į analogines grupes; 2. Sekti audinių pašarų ėdamumą ir laikymo sąlygas; 3. Sekti audinių pieno produktyvumą pagal atskiras grupes, nes kiekvienos grupės audinės buvo šeriamos skirtingais racionais pagal maisto medžiagų santykį; 4. Stebėti audinukų kūno masės priaugimą, kada jie buvo maitinami tik motinos pienu ir auginimo pabaigoje, t.y. įvertinti augimo ir vystimosi spartą. Tyrimus atlikome Lietuvos žvėrininkystės individualioje fermoje su audinėmis Mustela vison. Visos audinės buvo suskirstytos į 3 grupes: I gr. - racionas su dideliu baltymų kiekiu, II gr. - racionas su vidutiniu baltymų kiekiu, II gr. - racionas su mažu baltymų kiekiu. Šeriant audines skirtingais racionais, kur skyrėsi maisto medžiagų santykis: baltymai-riebalai-angliavandeniai nuo energijos kiekio, pirmoje grupėje buvo 63:35:2; antroje grupėje 45:41:14 ir trečioje grupėje 29:44:27, galime padaryti sekančias išvadas: 1. nustačius naudojamų pašarų maistinę ir energetinę vertes, baltymų didžiausias kiekis buvo pirmos grupės audinių racione ir sudarė 66,1 proc., nes jų racione buvo daugiau kaip 60 proc. žuvies ir žuvų produktų. Kitų grupių audinių racionuose riebalai ir angliavandeniai... [toliau žr. visą tekstą] / The aim of this work is to analyze the foddering of minks and its peculiarity, using rations with different amount of albumen and different proportion of nutritious matter in it; to watch the level of milk production during the period of mink lactation; to watch the speed of baby mink growing up and development. The tasks of the experiment: 1. To choose analogical animals and divide them into analogical groups; 2. To watch the fitness of mink fodder and their keeping conditions; 3. To watch the mink milk productivity in different groups because minks in every group were foddered on different rations according to the proportion of nutritious matter; 4. To watch baby mink gaining weight when they are fed on mother’s milk and at the end of mink breeding. The aim of it is to estimate the speed of growing up and development. The experiment was done in the individual farm of fur farming in Lithuania with Mustela Vison minks. All minks were divided into three groups: 1st group – ration with big amount of albumen; 2nd group – ration with average amount of albumen and 3rd group – ration with little amount of albumen. Foddering minks on various rations, where the proportion of nutritious matter was different: albumen – fat – carbohydrate from the amount of energy, in the 1st group it was 63:35:2; in the 2nd group 45:41:14 and in the 3rd group it was 29:44:27. After the experiment the following conclusions can be made: 1) When the nutritional and energetic value was settled, the biggest... [to full text]