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This work has been supported by the CICYT-funded Project AGL 2006-08300 and Comunidad de Madrid-funded Projects S2009/ AGR-1704 and MEDGAN ABI-2913. Analyses of 15N isotope ratios were performed at the 'Servicio Interdepartamental de Investigacion, Universidad Autonoma de Madrid', Spain.
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Arroyo, J. M.AuthorSanchez-Yelamo, M. D.AuthorGonzález, J.Corresponding AuthorSunflower meal and spring pea ruminal degradation protection using malic acid or orthophosphoric acid-heat treatments
Publicated to:Animal Production Science. 56 (12): 2029-2038 - 2016-01-01 56(12), DOI: 10.1071/AN14669
Authors: Díaz-Royón, F; Arroyo, JM; Sánchez-Yélamo, MD; González, J
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Abstract
The effects of solutions of malic or orthophosphoric acids (0.752 Eqg/kg of feed) and heat to protect proteins of sunflower meal (SFM) and spring pea (SP) against ruminal degradation were studied using particle transit, N-15 infusion, in situ and electrophoretic techniques. Three wethers fitted with rumen and duodenum cannulae were successively fed three isoproteic diets including SFM and SP, untreated or treated with malic or orthophosphoric acids. Incubations of tested meals were only performed while feeding the respective diet. Estimates of the ruminally undegraded fraction (RU) and its intestinal digestibility of dry matter, organic matter (only for RU), crude protein and starch (only in SP) were obtained considering ruminal microbial contamination and particle comminution and outflow rates. When corrected for microbial contamination, estimates of RU and intestinal digestibility decreased in all tested fractions for both feeds. All RU estimates increased with the protective treatments, whereas intestinal digestibility-dry matter also increased in SFM. Low intestinal digestibility-crude protein values suggested the presence of antitrypsin factors in SP. Protective treatments of both feeds led to consistent increases in the intestinal digested fraction of dry matter and crude protein, being only numerically different for SP-starch (60.5% as average). However, treatments also reduced the organic matter fermentation, which may decrease ruminal microbial protein synthesis. Electrophoretic studies showed albumin disappearance in both SFM and SP, whereas changes in other RU proteins were more pronounced in SP than SFM.
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Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Animal Production Science due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2016, it was in position 12/56, thus managing to position itself as a Q1 (Primer Cuartil), in the category Agriculture, Multidisciplinary.
From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 1.29, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)
Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-15, the following number of citations:
- WoS: 8
- Scopus: 10
Impact and social visibility
Leadership analysis of institutional authors
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Diaz-Royon, F.) and Last Author (GONZALEZ CANO, JAVIER).
the author responsible for correspondence tasks has been GONZALEZ CANO, JAVIER.