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Master's Dissertation
DOI
https://doi.org/10.11606/D.74.2014.tde-05052014-164429
Document
Author
Full name
Madalena Lima Menezes
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Pirassununga, 2014
Supervisor
Committee
Brandi, Roberta Ariboni (President)
Balieiro, Júlio César de Carvalho
Lacerda Neto, José Corrêa de
Title in Portuguese
Parâmetros plasmáticos de equinos alimentados com níveis crescentes de polpa cítrica
Keywords in Portuguese
Cavalo
Fibra solúvel
Nutrição
Pectina
Plasma
Abstract in Portuguese
O presente estudo teve como objetivo avaliar o efeito dos níveis de inclusão de polpa cítrica sobre parâmetros sanguíneos de equinos, vinculados ao metabolismo energético dos cavalos. Foram utilizados cinco animais, com idade média de 3,5 anos e peso vivo de 460,6±76,86kg, sem raça definida, arraçoados duas vezes ao dia, às 7:00 e às 16:00. As dietas foram formuladas para atender a demanda de animais em mantença, sendo 60% da energia proveniente do volumoso e 40% do concentrado, contendo níveis crescentes de inclusão de polpa cítrica (0, 7, 14, 21 e 28%). A coleta de sangue ocorreu nos tempos: antes da alimentação, uma, três, seis, nove horas após a alimentação. As amostras de sangue foram coletadas através de venopunção da jugular utilizando tubos coletores a vácuo para determinação de albumina, triglicérides, colesterol, glicose, insulina e ácidos graxos de cadeia curta. Foram calculadas a área abaixo da curva e o pico da glicose e insulina, para as quais não foram observados efeitos (P>0,05). Não houve efeito (P>0,05) da dieta sobre as concentrações sanguíneas dos parâmetros. Não houve efeito (P>0,05) do tempo de coleta sobre as variáveis: ácidos graxos de cadeia curta, colesterol, triglicérides e albumina, porém foi observado efeito (p<0,05) para as concentrações de glicose (y = -0,521x2 + 4,133x + 84,647) e insulina (y = -0,097x2 + 0,795x + 1,616). A polpa citrica é um ingrediente promissor na alimentação de equinos, sem causar alteração nas concentrações sanguineas de glicose, insulina, colesterol, triglicerides e ácidos graxos de cadeia curta. Dietas com alta inclusão de fibra e participação de ingredientes com fibras de fácil fermentação são benéficas a dietas de equinos pois mantem as curvas glicêmicas e insulinêmicas próximas aos valores basais além de postergar a queda glicêmica pós prandial.
Title in English
Blood parameters in horses fed with increasing levels of citrus pulp
Keywords in English
Horse
Nutrition
Pectin
Plasma
Soluble fiber
Abstract in English
The present study aimed to evaluate the effect of levels of citrus pulp on blood parameters of horses tied to energy metabolism of horses. Five animals were used, with an average age of 3,5 years and body weight of 460,6 ± 76,86 kg mongrel, hand fed twice daily at 7:00 and 16:00. Diets were formulated to meet the demand of animals in maintenance, 60% of energy from the forage and 40% concentrate, containing increasing levels of citrus pulp (0, 7, 14, 21 and 28%). Blood collection occurred at times: before eating, one, three, six, nine hours after feeding. Blood samples were collected via jugular venipuncture using vacuum collectors for the determination of albumin, triglycerides, cholesterol, glucose, insulin and short-chain fatty acids tubes. The area under the curve and the peak glucose and insulin, for which no effect (P>0,05) were observed, were calculated. There was no effect (P>0,05) of diet on blood concentrations of parameters. There was no effect (P>0.05 ) and time of collection on the variables: short-chain fatty, cholesterol, triglycerides and albumin acids, but effect ( p<0.05 ) was observed for glucose concentrations (y = - 0.521x2 + 4.133 x 84.647) and insulin (y = -0.097x2 + 0.795 + 1.616 x). The citrus pulp is a promising ingredient in feed for horses without causing changes in blood concentrations of glucose, insulin, cholesterol, triglycerides and short-chain fatty acids. Diets with high fiber inclusion and participation of ingredients with easily fermentable fibers are beneficial because the diets of horses keeps the glucose and insulin curves near the baseline plus delay the postprandial glycemic fall.
 
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ME8191732COR.pdf (859.89 Kbytes)
Publishing Date
2014-05-07
 
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