Intake and apparent digestibility of hay or hay plus concentrate diets determined in horses by the total collection of feces and n-alkanes as internal markers

Peiretti, P. G.; Meineri, Giorgia; Miraglia, N.; Mucciarelli, Marco; Bergero, Domenico

doi:10.1016/j.livprodsci.2005.08.016

Cited by 25 publications

(24 citation statements)

References 13 publications

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“…As stated by the authors cited, a relatively high digestibility relates to organic matter. Our results roughly correspond to the apparent digestibility coefficients in horses as reported by Miraglia et al (1999) or Peiretti et al (2006). The high value of apparent digestibility that we determined for the pasture vegetation is closely associated with the high digestibility of other organic nutrients.…”

Section: Discussionsupporting

confidence: 89%

“…As regards diets based on 85% share of meadow hay in light, heavy, pregnant and lactating mares, Martin-Rosset et al (1990) determined the apparent digestibility coefficients for ad libitum feeding: organic matter (52-57%), crude protein (54-60%), crude fibre (39-43%) and gross energy (49-53%). Peiretti et al (2006) studied the apparent digestibility of hay in horses and determined apparent digestibility coefficients in a range of values (56-70%), gross energy (55-67%) and crude protein (58-63%).…”

Section: Discussionmentioning

confidence: 99%

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Content of nutrients and energy in pasture vegetation and their apparent digestibility in Old Kladruber horses

Straková

Suchý

2013

Acta Vet. Brno

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This study focuses on the determination of apparent digestibility of pasture vegetation nutrients in horses of the Old Kladruber breed through a balance indicator method (determination of acid insoluble ash). When evaluating the nitrogenous substances, their determination was based on the content of pure protein (sum of amino acids) which is more accurate than crude protein. There were differences in the chemical composition of dry matter from pasture vegetation and horse excrements. Regarding crude fat, crude fibre, acid detergent fibre, neutral detergent fibre, acid detergent lignin, ash, P and Mg, the average values in dry matter of horse excrements were significantly (P ≤ 0.01) higher; on the contrary, we found significantly (P ≤ 0.01) lower mean values of nitrogen-free extract, organic matter and Ca in the dry mass of pasture grass. The highest coefficient of apparent digestibility for organic nutrients was determined in the nitrogenfree extract (73%) followed with organic matter (71%), pure protein (68%), crude protein (65%) and crude fat (61%). In case of fibre and its fractions, the apparent digestibility coefficients decreased as follows: crude fibre (66%), neutral detergent fibre (66%), acid detergent fibre (63%) and acid detergent lignin (42%). Significantly lower values were determined for coefficients of apparent digestibility for minerals P (16%) and Mg (50%), which highlights the need for their regular supplementation in horses on pasture. This study extends the current state of knowledge regarding the apparent digestibility of pasture vegetation which is a prerequisite for optimal nutrition of horses.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Content of nutrients and energy in pasture vegetation and their apparent digestibility in Old Kladruber horses

Straková

Suchý

2013

Acta Vet. Brno

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“…In particular, we studied the digestion coefficients of various types of hay (Corino et al, 1996;Bergero et al, 2004), haylages (Bergero et al, 2002;) and a large number of concentrates, which mainly provided energy (cereals and their by-products; Miraglia et al, 1999aMiraglia et al, , 2006aMiraglia et al, and 2006bPeiretti et al, 2006). The coefficients obtained using the AIA method were comparable with those obtained from the total collection of feces method, and the former method could therefore be used instead of the total collection method.…”

Section: Discussionmentioning

confidence: 88%

“…In this context, the internal markers method has often been used in digestibility trials in recent years, in particular using naturally occurring markers that do not cause any modification of the normal diet. These markers are substances such as n-alkanes (Peiretti et al, 2006), acidinsoluble ash (AIA; Miraglia et al, 1999aand 1999b, Almeida et al, 2001) and ADL (Miraglia et al, 1999a and1999b), which are naturally present in feeds. Other substances used as markers are added to diets and among these the most commonly used marker in horses is Cr 2 O 3 (chromic oxide; Parkins et al, 1982;Cuddeford and Hughes, 1990).…”

Section: Introductionmentioning

confidence: 99%

Apparent digestibility of wheat bran and extruded flax in horses determined from the total collection of feces and acid-insoluble ash as an internal marker

Marco

Miraglia

Peiretti

et al. 2012

Animal

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Several studies have reported data on comparisons between two methods: the total collection of feces and the internal markers method. The aim of this study was to assess the apparent digestibility of two concentrates and to compare the apparent digestion coefficients using the total collection of feces and acid-insoluble ash (AIA) as the internal marker method. In 2009, six adult geldings aged between 3 and 11 years, with an average weight per trial of 543, 540 and 542 kg, respectively, were used to determine the apparent digestibility by means of three in vivo digestibility trials on hay, hay plus wheat bran (60 : 40) and hay plus extruded flax (80 : 20). Feces were collected over a 6-day period with a previous 14-day adaptation period. The three digestibility trials were carried out to determine the digestion coefficients of the three diets and, indirectly, of the two concentrates. The digestion coefficients of the diets were determined for the dry matter, organic matter, crude protein and gross energy, whereas the apparent digestion coefficients of the same parameters were calculated for wheat bran and extruded flax, by calculating the difference from the previous results. The data were analyzed using the Student t-test for paired samples. The digestion coefficients obtained were similar when the total collection of feces and the AIA method were used. Higher data variability, confirmed by a greater standard deviation, was observed using the AIA method to estimate the apparent digestion coefficients. It can be concluded that the use of AIA as an internal marker in digestibility trials on average leads to values similar to those obtained with the total collection of feces and can therefore be considered a less-expensive method to determine apparent digestion coefficients. Nevertheless, the total collection of feces should still be considered the best choice to determine the digestibility of some specific feedstuffs.Keywords: horse, apparent digestibility, acid-insoluble ash, total feces collection, concentrates ImplicationsThis study is part of a broad series of digestibility trials that aimed to evaluate the apparent digestibility of a wide range of different feedstuffs and to compare two assessment methods, namely, the total collection of feces and the internal markers method. The results of this study provide further data to update the digestion coefficients of raw materials and forages, which are usually part of the rations of horses, and that have not yet been referred to in the scientific literature. These results could help improve the current, scientifically based rationing of horses, and could enable companies to produce more suitable compound feeds, according to the particular features of each ingredient.

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“…A polpa cítrica vem sendo utilizada na dieta de equinos, contudo com poucas pesquisas (FURTADO et al, 2011;OTT et al, 1979;MANZANO et al, 1999;PERALI et al, 2001;MIRAGLIA et al, 2006;PEIRETTI et al, 2006).…”

Section: 4apolpa Cítricaunclassified

Palatabilidade e digestibilidade aparente de dietas com níveis crescentes de inclusão de polpa crítica para equinos

Moreira¹

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Para a realização do experimento, foram realizados dois testes. O primeiro ensaio consistiu na determinação da palatabilidade dos concentrados, através do teste de preferência. Para isso foram utilizados 15 equinos, por um período de 10 dias, totalizando 150 observações, em delineamento inteiramente casualizado. As variáveis observadas foram primeira ação, primeira escolha e razão de ingestão. Para a realização do ensaio de digestibilidade e características físico-químicas das fezes, foram utilizados cinco equinos, em delineamento quadrado latino 5x5. Avaliou-se a digestibilidade aparente dos nutrientes e as características de cor, consistência, pH, concentração e relação entre ácidos graxos de cadeia curta e capacidade tamponante a pH 5 e a pH 6, das fezes. Observou-se efeitoda inclusão da polpa cítrica (P<0,001) sobre a primeira ação, sendo que 66,91% dos animais cheiraram os concentrados, enquanto 33,09%comeram, e também para a primeira escolha (P<0,001),onde os tratamentos 0, 7 e 14% apresentaram maior preferência. Para a razão de ingestão,também houve diferença (P<0,001) entre os tratamentos, sendo que o concentrado controle o mais consumido.Não foi observado efeito (P>0,05) dos níveis de inclusão de polpa cítrica sobre a digestibilidade aparente dos nutrientes. Para as características das fe zes não houve efeito de tratamento (P>0,05) na consistência e cor. A coloração se manteve esverdeada, e a consistência foi classificada como normal (escore 3).Não houve efeito de tratamento (P>0,05) para o pH, concentração e relação entre ácidos graxos de cadeia curta e capacidade tamponante das fezes. O valor médio observado de pH foi de 6,62, e a capacidade tamponante a pH 5 e pH 6 foi de 16,53 e 5,13 mmol/L, respectivamente. Os cavalos têm a capacidade de identificar a presença da polpa cítrica nos concentrados, e preferem concentrados sem a inclusão. A adição de polpa cítrica em até 28% não afeta negativamente a digestibilidade dos concentrados e as características físico-químicas das fezes, sendo uma alternativa de ingrediente na formulação de dietas para equinos.Palavras-chave: cavalos, pectina, pH fecal, preferência, super fibra. ABSTRACT:The purpose of this study was to evaluate the citrus pulp inclusion in horses diet, through evaluation of palatability, apparent digestibility andfeces physicochemical characteristics. The diets were composed of 60% of the energy from roughage (Coast Cross hay) and 40% from concentrate with increasing levels of citrus pulp (0, 7, 14, 21 and 28%).To perform the experiment, there were two distinct tests.The first experiment consisted in determining the concentrates palatability. Fifteen horses were used, for a 10-day period, totaling 150 observations, in a randomized design. The variables were first action, first choice and intake rate. For the digestibility test and feces physicochemical characteristics, five horses were used in 5x5 Latin square design. Were evaluated the nutrients digestibility and the feces characteristics of color, consistency, pH, concentration and relation...

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Intake and apparent digestibility of hay or hay plus concentrate diets determined in horses by the total collection of feces and n-alkanes as internal markers

Cited by 25 publications

References 13 publications

Content of nutrients and energy in pasture vegetation and their apparent digestibility in Old Kladruber horses

Content of nutrients and energy in pasture vegetation and their apparent digestibility in Old Kladruber horses

Apparent digestibility of wheat bran and extruded flax in horses determined from the total collection of feces and acid-insoluble ash as an internal marker

Palatabilidade e digestibilidade aparente de dietas com níveis crescentes de inclusão de polpa crítica para equinos

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