Serum urea and protein concentrations and growth rate of weanling foals

Saastamoinen, Markku

doi:10.21836/pem19960333

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…These high values are probably related to a high intake of CP, caused by the good pasture quality and high levels of concentrate offered. Saastamoinen (1996) reported an increase of 8 to 10% in the values of total protein in serum, in animals that were receiving an excess of protein in their diets and diets that were out of balance with respect to amino acids. An excess protein intake can also lead to an increase in the values of urea in the serum (Fonnesbeck and Symons, 1969;Patterson et al, 1985;Schryver et al, 1987;Saastamoinen, 1996).…”

Section: Pasture Trialmentioning

confidence: 99%

Dried yeast (Saccharomyces cerevisae) as a protein source for horses

et al. 2011

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The objective of this study was to evaluate the use of dried yeast in the diet of foals when replacing soybean meal to provide 0, 0.25, 0.50, 0.75 and 1.00 of the main protein source. Two trials were performed. Trial one was done to evaluate the influence of yeast on the digestibility of the five diets. Ten foals were kept in metabolic cages and five diets were tested twice. The experiment was repeated a second time, with foals receiving a different diet so that every diet was tested 4 times on a different animal. The concentrate was offered in a level of 2% of the body weight and Chloris guaiana hay was offered as roughage in a level of 1% of the body weight. In a second trial thirty 'Brasileiro de Hipismo' foals, aged between 12 and 14 months, were used. They were kept on pastures of Cynodon dactylon c.v. Coastcross and Cynodon spp. c.v. Tifton 85, and the concentrate was offered twice a day in separate pens at a level of 2% of the body weight. The pastures were of good quality and the pasture availability was high. The experimental design was a 5 × 3 factorial (five levels of yeast and three groups of animals in different pastures), with two replicates/ treatment. The foals were weighed and measured every 28 days. Blood samples were collected at the end of the trial. The concentrate intake was measured daily. The pasture intake was measured through estimation of faecal output with chromic oxide and by the amount of acid detergent insoluble ash in the pasture, feed and faecal samples. The mean digestibility of dry matter, organic matter, crude energy and acid detergent fibre did not differ between the diets. A quadratic effect was observed for the digestibility of crude protein and neutral detergent fibre. Increasing the level of yeast in the diets did not have an influence on the average daily weight gain, heart girth gain, withers height gain, but linearly depressed the daily intake of the concentrate. However, the intake of pasture was not influenced by the different diets. The biochemical blood parameters total protein, albumin, globulin, urea, uric acid, creatinine, cholesterol, triglycerides, aspartate aminotransferase and gamma glutamyltransferase were not affected by increasing levels of dried yeast. It was concluded that dried yeast can be used as the only main protein source in the concentrate diets of 12 month old foals.

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Section: Pasture Trialmentioning

confidence: 99%

Dried yeast (Saccharomyces cerevisae) as a protein source for horses

et al. 2011

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“…Horses are fast growing animals and foals will reach 65% of their mature body weight and about 90% of their mature height at the end of the first year of life (Saastamoinen, 1996).…”

Section: Introductionmentioning

confidence: 99%

Avaliação De Açúcares E Proteínas Totais No Decorrer Da Curva De Lactação De Éguas Da Raça American Trotter Pela Refratometria Brix: Determination of Total Sugar and Protein Content in Milk Using Brix Refractometry in Lactating American Trotter Mares

Farinelli De Siqueira,

Kalinouski

2023

Zootecnia: Tópicos Atuais Em Pesquisa - Volume 3

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A principal função do leite de égua é fornecer os nutrientes necessários ao desenvolvimento do potro nos primeiros meses de vida. O conhecimento de sua composição durante a lactação é importante para o prever a data mais correta do desmame, evitando as doenças ortopédicas do desenvolvimento nos futuros atletas. O estudo teve como objetivo avaliar o uso da refratometria Brix para estimar o teor de proteínas totais e concentração de açúcar na composição do leite de éguas, com a finalidade de avaliar se essa técnica é adequada para analisar os nutrientes do leite, relacionados ao crescimento do potro (proteína e açúcares) ao longo da lactação. Foram utilizadas 11 éguas multíparas da raça American Trotter, das quais foram coletadas amostras de leite nos dias 02 (T1), 17 (T2), 32 (T3), 47 (T4), 62 (T5), 77 (T6), 92 (T7), 107 (T8) de lactação. Houve diminuição dos níveis de açúcares totais, determinado pelo grau Brix, a partir do dia 47 (T4), todavia, essa diminuição não pode ser atribuída somente à lactose. A proteína total e a densidade seguiram a mesma tendência ao declínio das suas concentrações ao longo de toda a curva de lactação analisada, sendo esse declínio também significativo a partir dos 47 dias (T4). Houve forte correlação positiva entre o grau Brix, proteína total e densidade, mostrando que, embora o grau Brix possa superestimar os açúcares, existe correspondência entre as análises. Embora exista correlação entre grau Brix, proteína total e densidade, a utilização da refratometria ao pé da égua para determinar qualidade do leite não é confiável, pois superestima os valores dos açúcares.

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“…Somit wurden auch beim Warmblutfohlen im ersten Lebensmonat Tageszunahmen von bis zu 1500 g erreicht, sodass bereits im zweiten Lebensmonat die Geburtsmasse verdoppelt ist (GfE, 1994;WILKE, 2003;HOIS et al, 2005;MACK, 2007;MARTIN-ROSSET, 2005) HOLLAND et al, 1996;SAASTAMOINEN, 1996;MARTIN-ROSSET, 2005).…”

Section: Aus Diesen Gründen Wurden In Einigen Jüngerenunclassified

“…Mangelsituationen führen zu teilweise unphysiologisch erhöhter Aktivität von Pferden in der Aufzucht. Aus diesen Gründen steigt in diesen Phasen die Anfälligkeit für krankhafte Knochen-und Knorpelveränderungen durch Überbelastungen oder nach Verletzungen an (SAASTAMOINEN, 1996). Da speziell diese Gewebe einen sehr langsamen "Turnover" aufweisen, war es für die Tiere in der Studie kaum möglich die Veränderungen im weiteren gesamten Leben wieder zu kompensieren.…”

Section: Einflüsse Der Fütterung Auf Das Wachstum Beim Warmblutpferdunclassified

Untersuchungen zu Wachstumsleistungen von Warmbluthengsten in der Aufzucht unter besonderer Berücksichtigung der Protein- und Aminosäurenversorgung

Koslowski¹

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Serum urea and protein concentrations and growth rate of weanling foals

Cited by 4 publications

References 5 publications

Dried yeast (Saccharomyces cerevisae) as a protein source for horses

Dried yeast (Saccharomyces cerevisae) as a protein source for horses

Avaliação De Açúcares E Proteínas Totais No Decorrer Da Curva De Lactação De Éguas Da Raça American Trotter Pela Refratometria Brix: Determination of Total Sugar and Protein Content in Milk Using Brix Refractometry in Lactating American Trotter Mares

Untersuchungen zu Wachstumsleistungen von Warmbluthengsten in der Aufzucht unter besonderer Berücksichtigung der Protein- und Aminosäurenversorgung

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