Magistrinio darbo tikslas: išanalizuoti kombinuotųjų lesalų, skirtų kalakutams, gamybos procesus bei pateikti rekomendacijas lesalų kokybės gerinimui bei kalakutų produktyvumo didinimui. Šio tikslo įgyvendinimui magistriniame darbe numatoma išspręsti tokius uždavinius: 1. Atlikti pašarinių žaliavų, naudojamų kalakutų kombinuotųjų lesalų, įvertinimą. 2. Atlikti lesalų gamybos procesų analizę. 3. Išanalizuoti kokybės sistemų, taikomų lesalų gamyboje, efektyvumą. 4. Atlikti kalakutų produktyvumo analizę atsižvelgiant į naudojamų lesalų kokybinius parametrus bei lesinimo programas. Išvados: 1. UAB „Marijampolės pašarai“ KŪB yra gaminami įvairūs visaverčiai lesalai, įvairioms paukščių grupėms, daugiausiai kalakučiukams-broileriams (6 lesinimo fazių lesalai) bei viščiukams broileriams ( startinis, auginimo vidurio ir pabaigos). 2. Sudarant kombinuotuosius lesalus kalakutams pagrindinis dėmesys yra kreipiamas į javų grūdų, sojos rupinių kokybę, nes lesalų struktūroje jie sudaro didžiausią dalį. 3. Žaliavų smulkintuve- malūne yra naudojamas 3 mm sietas, esant tokiam sieto diametrui pašarinių žaliavų dalelių sumalimo dydis gali kinta nuo 0,4 iki 0,5 mikrometrų. 4. Nustatant lesalų homogeniškumą į pašarus buvo įterpta po 1,0 proc. druskos. Esant tolygiam pašarinių žaliavų išsimaišymui druskos kiekio variacijos koeficientas neturėtų viršyti 5,0 proc., mūsų atliktais tyrimų duomenys rodo, kad šis rodiklis yra 7,0 proc. 5. Nekrakmolo polisacharidus skaldantys fermentai ir fitazės yra... [toliau žr. visą tekstą] / The aim of the Master’s Thesis was to analyse production processes of compound turkey feed and provide recommendations for improving the quality of compound turkey feed and the productivity of turkey. Objectives of the Master’s Thesis: 1. Evaluate raw materials used in production of compound turkey feed. 2. Analyse production processes of compound feed. 3. Analyse efficiency of quality systems used in production of compound feed. 4. Analyse turkey productivity in regard to qualitative parameters and feeding programmes. UAB „Marijampolės pašarai“ KŪB produces large variety of complete compound feed for various poultry groups, mostly for turkeys (compound feed for 6 feeding phases) and for broiler chickens (starter, developer and finisher). This thesis contains analysis of the quality and quality affecting factors of raw materials and feed additives used in compound feed production. Accomplished analysis of processes in feed production included receiving and storing of raw material, grinding of raw material and fineness of its particles, processes of conditioning, expanding and granulation. Risk factors in compound feed production were assessed as well. During development of this thesis, experiment with cross Hybrid XL turkeys was carried out, which aimed to determine influence of compound feed enriched with synthetic amino acids on the intensity of turkey growth, the feed conversion and turkey liveability. The analytical and experimental part of the thesis concluded in the... [to full text]

This thesis examines the pricing efficiency of the Quebec corn and soybean meal markets to answer a hypothesis on the part of the local livestock industry as to the existence of pricing inefficiency in the feed input industry. In evaluating the pricing efficiency of the markets, this research used two approaches: an analysis of market and an analysis using econometric models, focusing on price information structure accuracy and rapidity. The weekly data series of corn and soybean meal price are from selected cities in Canada and the US cover the crop years of 1990--1996. / The accuracy is addressed by applying Faminow's model for testing the pricing systems and Houck's model for testing price transmission symmetry. The results showed that the Quebec corn market is accurate based on the evidence of (i) a relatively unconcentrated market structure; (ii) evidence of an FOB pricing system; and (iii) symmetric price adjustments. Even though the soybean meal market is also based on an FOB pricing system, it is not accurate because the price adjustments are asymmetric and its market structure is highly concentrated. / The rapidity is addressed by applying Vector Error Correction (VEC) models in three ways: (i) by investigating the cointegration relationships, (ii) by assessing the strength of the relationships, and (iii) by measuring dynamic price response. The results showed that the strength of the relationships and the speed of Quebec corn price adjustment in response to external shocks are less than those found in Ontario and Southeastern US markets, while soybean meal is comparable to those markets. / Thus, by means of an assessment of market structure, marketing margin, price information transmission accuracy and rapidity, this research concludes that the corn market in Quebec is relatively pricing efficient while the soybean meal market is not.

Includes bibliographical references (leaves 290-333). / xxiv, 333 leaves : ill. (chiefly col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Describes research into the nutritional value of aquatic plants as novel or non-conventional feedstuffs for ruminants in general and for sheep in particular, with especial reference to those which are available in high amount in southern Australia, such as the seagrass, Posidonia australis. / Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Science, 1996?

[Truncated abstract] Saltbush is one of the few types of forage that will grow on salt affected land but, sheep struggle to maintain weight when grazing saltbush mainly because of its high salt content. Therefore, a strategy to improve salt tolerance of sheep would be beneficial to the profitable use of revegetated saline land. This could be done by manipulating the dietary salt load of pregnant or lactating ewes which could 'program', or permanently alter the physiology of their offspring to allow them to cope better with a high-salt diet as adults. When rat dams consume a high amount of salt during pregnancy, the salt balance mechanisms of their offspring are 'programmed' due to suppression of the offspring's renin-angiotensin system in early development. If this occurs in offspring from ewes grazing saltbush, beneficial adaptations may be programmed in these offspring which could allow them to better cope with the high-salt content of saltbush. I tested the general hypothesis that offspring born to ewes that consumed a high-salt or saltbush diet from mid-pregnancy to early lactation would have an increased capacity to cope with salt that would allow them gain weight when grazing saltbush in later life. To test this hypothesis, I pair-fed ewes either a high-salt diet (14% NaCl) or control diet (2% NaCl) in an animal house from day 60 of gestation until day 21 of lactation. During the same period, I also conducted a field experiment where ewes grazed on saltbush (supplemented with barley) or on pasture (supplemented with lupins). ... This led to the high-salt offspring retaining more salt than control animals. In contrast, the renin activity of saltbush was consistently lower than pasture offspring which allowed them to excrete salt more rapidly. In experiment three, the saltbush offspring gained tissue weight after grazing saltbush for 8 weeks, whereas the offspring in the other three treatments lost weight. High-salt and saltbush offspring also had higher greasy fleece weights at 22 months of age than their respective control groups. Feeding saltbush to ewes from mid-pregnancy to early lactation induces physiological adaptations in their offspring that allow them to cope better with salt and gain weight when grazing saltbush as adults, supporting my hypothesis. However, contrary to expectations, the high-salt offspring did not gain weight when grazing saltbush because their physiological adaptations, such as salt retention, did not allow them to cope better with a salt load. The reason that saltbush offspring showed different adaptations to highsalt offspring is likely to be because saltbush contains not only NaCl but also high amounts of other minerals such as potassium, and other plant compounds, which may influence the adaptive responses of the offspring. This research has direct implications for farmers because it shows they could utilize otherwise unproductive saltland by grazing pregnant ewes on saltbush to 'program' their offspring to gain weight when they graze saltbush later in life.

Thesis (M. App. Sc.)--University of Adelaide, Dept. of Animal Science, 1995? / Copies of the author's previously published articles inserted. Includes bibliographical references (leaves 142-159).

Thesis (MSc (Agric)(Production Management)) -- University of Pretoria, 2007. / Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1944. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographies: leaves 22-24, 70-73.

Thesis (M. Sc.(Agric.))( Animal Science)--University of Pretoria, 2006. / Includes bibliographical references. Available on the Internet via the World Wide Web.

Made available in DSpace on 2014-06-11T19:32:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-02-17Bitstream added on 2014-06-13T20:27:53Z : No. of bitstreams: 1 goncalves_jc_dr_botfmvz.pdf: 385502 bytes, checksum: f252f5f8c1f09237dda0f395ffd9cb72 (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Universidade Estadual Paulista (UNESP) / O objetivo deste trabalho foi avaliar os níveis de inclusão de silagem de grãos úmidos de sorgo (SGUS) em substituição ao milho seco da ração sobre o desempenho, rendimento de carcaça, cortes e gordura abdominal, além de avaliação econômica da criação alternativa, no período de 1 a 49 dias de idade. Também foi avaliada a digestibilidade das rações aos 21 dias de idade. O trabalho foi conduzido no Laboratório de Nutrição de Aves da FMVZ, UNESP - Campus de Botucatu e para as análises de desempenho e rendimento de carcaça foram distribuídos no galpão, 600 pintos machos (Cobb), com um dia de idade, vacinados no incubatório contra Gumboro, Marek e Bouba aviária em um delineamento em blocos casualizados, com seis tratamentos (0, 10, 20, 30, 40 e 50% de inclusão SGUS em substituição ao milho seco da ração), com quatro repetições de 25 aves cada, totalizando 100 aves por tratamento. Em relação a digestibilidade, foram alojados na câmara climatizada termoneutra, 72 pintainhos em 24 gaiolas, sendo 3 aves/gaiola, totalizando 12 aves/tratamento. Os tratamentos experimentais e manejo foram os mesmos adotados para o galpão. A inclusão de silagem nas rações foi feita considerando-se o teor de umidade do milho e da silagem, mantendo a mesma proporção de matéria seca de milho nas mesmas, com o fator de correção 1,220. A SGUS pode substituir em até 50% o milho seco das rações de frangos de corte alternativos criados até 49 dias de idade, sem alterar desempenho, rendimento de carcaça, cortes e gordura abdominal, bem como a digestibilidade de nutrientes aos 21 dias de idade. Entretanto, o maior retorno econômico e melhor fator de produção foi obtido com 10% de substituição. / The objective of this study was to evaluate levels of inclusion of high moisture sorghum grains silage (HMSS) in substitution of dry corn in diet on performance, carcass yield, cuts and abdominal fat, and also economic analysis of alternative system at 1 to 49 d of age. The digestibility of diets was determined at 21 d of age. The experiment was carried out at the Poultry Nutrition Laboratory of the Faculty of Veterinary Medicine and Animal Science, UNESP, Botucatu, Brazil and to performance and carcass yield analysis were used 600 one-day-old male broiler chicks (Cobb), installed in a broiler house, vaccinated against Gumboro, Marekis and Bouba Aviária disease in a randomized blocks, with six treatments based on the inclusion of 0, 10, 20, 30, 40 and 50% of HMSS in substitution of dry corn, four replicates/treatment of 25 chicks each, totalizing 100 chickens per treatment. With regard to digestibility were housed to the termoneutral acclimatized chamber 72 one-day-old male chicks (Cobb) in 24 cages, 3 chicks/cage, 12 chicks/treatment. The experimental treatments and management had been the same adopted for the broiler house. The inclusion of silage in the rations was performed considering the corn and silage humidity amount, keeping the same proportion of dry matter of corn with the correction factor 1,220. HMSS can be included up to 50% in substitution of dry corn in the diet of alternative broiler chickens with 49 d of age, without modifying performance, carcass yield, cuts and abdominal fat, as well as the digestibility at the age of 21 d. However, better economic return and production factor had gotten with 10% of substitution.

In the ZD Kojčice cooperative farm, a stable in Krasíkovice was studied in 2013 and 2014. The farm's production technology and the quality of the ensiled feed, feeding techniques, composition of the feed portions and selected milk production indicators were examined. The economy of milk production was also assessed. The production of ensilage ensured quality feed that was the basis for the milk cows' feed portions. The results show that the feed portions were well balanced in comparison to the recommended nutritional values for milk cows. The average yield in 2014, unlike 2013, decreased by 146 l to 5 960 l per milk cow per year. The costs per feed day were established at 138,2 Kč. The average costs for one liter of milk were 8,75 Kč/l.