Archives of Animal Nutrition最新文献

{"title":"Up to date evidence about the suitability of filamentous fungi as a feed source for broilers.","authors":"Robert Ringseis, Klaus Eder","doi":"10.1080/1745039X.2025.2495619","DOIUrl":"https://doi.org/10.1080/1745039X.2025.2495619","url":null,"abstract":"<p><p>Biomass from cultivated edible mushrooms can be sustainably produced using residual lignocellulosic sidestreams from agri-industrial and wood processing and is a rich source of a variety of bioactive compounds. While edible mushrooms have a long history as a tasty and healthy food for humans, the potential of mushrooms (fungal fruiting bodies), fungal mycelia and by-products from mushroom production (stem residues, spent mushroom substrate) as feed component for poultry is less acknowledged. Based on this, the present review aims to describe the role of filamentous fungi in circular feed production, characterise the nutritional value of fungal biomass, and provide up to date evidence about the efficacy of feeding fungal biomass on performance of broilers. Feeding studies with healthy and parasite-infected broilers using fungal fruiting bodies, mycelia, stem residues or spent mushroom substrate nearly equally showed either positive or neutral effects on growth performance, whereas impairments of performance and carcass parameters were not reported. Improvements of broiler performance in response to feeding fungal biomass were at least partially associated with a beneficial modulation of the gut microbiota community structure - effects that are most likely attributed to the presence of fermentable polysaccharides and phenolic compounds with prebiotic and selective antimicrobial activities, respectively. Based on the evidence from literature presented in this review, the inclusion of fungal biomass, particularly inexpensive by-products from mushroom production like stem residues and spent mushroom substrate, in broiler diets can be recommended, because even if no growth-promoting effects are induced the partial replacement of less sustainably produced feed components by fungal biomass improves the environmental impact of broiler production. Considering that the number of broiler studies showing either positive or neutral effects of fungal biomass on growth performance is broadly balanced and divergent study outcomes are reported even for biomass from the same fungal species, future studies are necessary to identify the specific requirements of fungal biomass responsible for promoting broiler performance.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"1-22"},"PeriodicalIF":2.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fermentation and exogenous enzymes can increase ileal, hindgut, and total tract energy digestibility of palm kernel cake in growing pigs.","authors":"Yaowei Sun, Yuxiang Liang, Kai Li, Lianhua Zhang, Ruqing Zhong, Liang Chen, Hongfu Zhang","doi":"10.1080/1745039X.2025.2467762","DOIUrl":"10.1080/1745039X.2025.2467762","url":null,"abstract":"<p><p>This study assessed how fermentation and exogenous enzymes affect nutrient digestibility and energy values of palm kernel cake (PKC) in growing pigs. Eighteen pigs were fed six diets: a basal diet, PKC (100 or 200 g/kg), fermented PKC (FPKC; 100 or 200 g/kg), or enzymolysis PKC (EPKC; 100 g/kg). Chromium oxide was used to determine digestibility coefficients. Results showed that PKC inclusion linearly reduced apparent total tract digestibility (ATTD) of dry matter (DM), crude protein (CP), and gross energy (GE), while fermentation or enzymatic hydrolysis mitigated these effects. The regression-estimated digestible energy (DE) values were 11.39 MJ/kg DM for PKC and 12.84 MJ/kg DM for FPKC; metabolisable energy (ME) values were 11.03 and 12.60 MJ/kg DM, respectively. Hindgut fermentation contributed 5.42 MJ/kg DM (PKC) and 4.11 MJ/kg DM (FPKC). Fermentation and enzymatic treatments improved PKC energy utilisation, suggesting their potential as cost-effective alternatives in pig diets.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"14-26"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143623313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between chitosan and sources of unsaturated fatty acids improvement the ruminal fermentation, omasal outflow and rumen dynamics of lactating Jersey cows.","authors":"Olga Cedro de Menezes, Vinícius M De Carvalho, Victor H O de Queiroz, Camilla A Do N Rezende, Quésia G Costa, Layse A Gordiano, Maria L G M L de Araújo, Cláudio V D M Ribeiro, Arlindo S Netto, Polyana P Rotta, Douglas Dos S Pina, Gleidson G P de Carvalho, Lara M S Brant, Marcus V G Loiola, José E De Freitas Júnior","doi":"10.1080/1745039X.2025.2472690","DOIUrl":"10.1080/1745039X.2025.2472690","url":null,"abstract":"<p><p>The objective of this study was to evaluate the effects of chitosan (CH), with or without the inclusion of unsaturated fatty acid (UFA) sources, on intake and digestibility, ruminal fermentation, microbial protein synthesis, nitrogen balance, blood metabolites, milk production and composition, and ruminal dynamics and flow in lactating Jersey cows. Five rumen-fistulated Jersey cows [average days in milk = 105 ± 45 days; milk production = 18.0 ± 0.47 kg/day; body weight = 350 ± 25 kg] were used in a 5 × 5 Latin square design with 21-day periods. Five experimental diets were evaluated: (1) Control (CON), basal diet including 30 g/kg of palm oil; (2) (SOCH-) inclusion of 30 g/kg soybean oil (SO) without CH; (3) (WSCH-) inclusion of 160 g/kg whole raw soybeans (WS) without CH; (4) (SOCH+) inclusion of 30 g/kg SO and 2 g/kg CH; (5) (WSCH+) inclusion of 160 g/kg WS and 2 g/kg CH. There was a CH and UFA interaction effect on acetate (C2) concentration (<i>p</i> = 0.005), propionate (C3) concentration (<i>p</i> = 0.008), the C2:C3 ratio (<i>p</i> < 0.001), and the milk fat content of trans-9 C18:1 fatty acid (FA) (<i>p</i> = 0.004). The inclusion of SO, with or without CH, proved to be more active in improving ruminal fermentation patterns by increasing propionate concentration. Furthermore, incorporating SO into the diets of lactating Jersey cows increased CLA, particularly <i>cis</i>-9, <i>trans</i>-11, in milk fat, offering health benefits. We recommend further research to assess the effects of UFA supplementation in combination with CH.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"27-45"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143708262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protected palmitic acid to mitigate milk fat depression in grazing Holstein cows in the Mexican Highlands.","authors":"Pedro Alberto Candia-López, Omar Hernández-Mendo, José Ricardo Bárcena-Gama, Ricardo Daniel Améndola-Massiotti","doi":"10.1080/1745039X.2025.2453246","DOIUrl":"10.1080/1745039X.2025.2453246","url":null,"abstract":"<p><p>The <i>cis-9 trans-11</i> and <i>trans-10 cis-12</i> isomers of conjugated linoleic acid (CLA) are associated with anticancer and lipolytic effects in tissues, respectively, but in lactating cows, the latter isomer reduces the milk fat concentration, a detrimental aspect for the dairy industry, as it reduces the yield of milk derivatives. Therefore, the objective of this study was to evaluate the effect of providing protected palmitic acid (PA_<i>P</i>) to grazing lactating Holstein cows supplemented with soybean oil as a source of conjugated linoleic acid, on milk production, fat concentration and mitigation of milk fat depression. Nine multiparous Holstein cows were used, distributed in three groups of three cows each, with initial means of days in milk, live weight, milk production, and number of calvings: 124 ± 16 days, 494 ± 53 kg, 20.9 ± 1.3 kg, and 3.2 ± 2.2, respectively. A crossover design with three treatments was used: control (base diet, BD, = grazing +4 kg concentrate without soybean oil + 2.5 kg corn silage), soybean oil (BD with inclusion of 300 g dry basis soybean oil cow^-1 day^-1), and soybean oil + PA_<i>P</i> (BD with inclusion of 300 g dry basis soybean oil and 412 g PA_<i>P</i> cow^-1 day^-1). The groups of cows were on rotational grazing in a mixed pasture of Alfalfa (<i>Medicago sativa</i>) and Orchard grass (<i>Dactylis glomerata</i>). The variables evaluated were as follows: dry matter intake (DM), milk production, concentration of protein, fat and lactose in milk, and milk fat profile. Statistical analysis was through PROC MIXED and comparison of means with Tukey's test (<i>p</i> < 0.05). There were no differences (<i>p</i> > 0.05) between treatments in dry matter intake, milk production or milk protein and lactose content. But the addition of PA_<i>P</i> in the cow diet increased fat-corrected milk production (<i>p</i> = 0.010), yield (<i>p</i> = 0.030) and fat concentration (<i>p</i> = 0.040), and improved the milk fatty acid profile, by increasing (<i>p</i> = 0.010) the concentration of <i>cis-9</i>, <i>trans-11</i> CLA in milk fat. Soybean oil supplementation in the diet of grazing lactating cows showed no differences in productive variables, and did not cause the expected milk fat depression. However, combining soybean oil with PA_<i>P</i> improved the fatty acid profile, increasing the <i>cis-9</i>, <i>trans-11</i> isomer CLA and palmitic acid in milk fat, with higher yield and fat concentration.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"1-13"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feed intake, milk production and feed conversion of dairy cows fed re-ensiled press cake from grass-clover silage compared to unprocessed grass-clover silage.","authors":"Georg Terler, Manuel Winter, Reinhard Resch, Hannes Rohrer, Christian Fasching, Michael Mandl, Joseph Sweeney, Kevin McDonnell, Andreas Steinwidder","doi":"10.1080/1745039X.2025.2473590","DOIUrl":"10.1080/1745039X.2025.2473590","url":null,"abstract":"<p><p>Press cake silage (PCS) is a by-product of biorefining, which can substitute unprocessed grass or grass-clover silage (GCS) in ruminant feeding. The aim of this study was to examine the effect of including re-ensiled PCS from GCS in dairy cows' diet on feed intake, milk production and composition, feed conversion, apparent total tract digestibility (ATTD) as well as feed sorting and rumination behaviour compared to a control ration. Three total mixed rations (TMR) were tested in this experiment differing in PCS and GCS proportion in forage: 0% PCS and 50% GCS (CON), 25% PCS and 25% GCS (PCS25) and 50% PCS and 0% GCS (PCS50). The study was designed as a cross-over trial with six Holstein Friesian and nine Simmental cows (average 624 ± 68 kg body weight and 60 ± 20 days in milk at the start of the trial). The experiment consisted of three experimental runs, each lasting for 35 days with a 14 days adaptation phase and a 21 days measurement period. Diets were fed as TMR containing 37% grass silage, 26% concentrates and differing proportions of PCS or GCS depending on experimental group (37% GCS in CON, 18.5% PCS and 18.5% GCS in PCS25, 37% PCS in PCS50). Dry matter intake of dairy cows was higher in the PCS25 compared to the PCS50 group with both groups being not different from the CON treatment. Energy-corrected milk (ECM) production was lowest in the PCS50 group but did not differ significantly between treatments. Milk composition was also similar in all three treatments, except for milk urea content, which was lower in the PCS50 group. Moreover, ATTD of crude protein and ruminal nitrogen balance as well as phosphorus intake and the phosphorus effort for production of 1 kg ECM decreased with rising PCS inclusion in the diet. In contrast, no differences between treatments were found for dry matter, crude protein and energy effort for ECM production as well as for feed sorting and rumination behaviour. In conclusion, replacing GCS by re-ensiled PCS in TMR-diets did not affect ECM production and feed conversion of dairy cows while increasing the utilisation of crude protein and phosphorus. Therefore, re-ensiled PCS can substitute GCS in dairy cows' TMR-diets. However, the long-term effects of decreased phosphorus intake and ATTD of crude protein in cows fed PCS-rich diets should be examined in future studies.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"46-58"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nutritional value of field bean-containing diets for broilers without and with phytase, xylanase and protease enzymes, alone or in a combination.","authors":"Jalil Mahmwd Abdulla, Stephen Paul Rose, Alexander Mackay Mackenzie, Vasil Radoslavov Pirgozliev","doi":"10.1080/1745039X.2025.2478559","DOIUrl":"https://doi.org/10.1080/1745039X.2025.2478559","url":null,"abstract":"<p><p>The effects of exogenous phytase (PHY), xylanase (XYL) and protease (PRO) alone and in a combination, when supplemented to diets based on three field bean cultivar samples with different chemical composition, on dietary metabolisable energy (ME), nutrient digestibility, gastrointestinal tract (GIT) development, feed intake (FI), weigh gain (WG) and feed conversion ratio (FCR) were studied. Diets based on beans with lower phytic acid and fibre content had higher ME, fat (<i>p</i> < 0.05) and dry matter retention (<i>p</i> < 0.001) coefficients, which coupled with greater feed efficiency, e.g. reduced FCR (<i>p</i> < 0.001). Dietary PHY alone reduced FCR (<i>p</i> < 0.001) and XYL alone improved dietary ME (<i>p</i> < 0.05). An interaction (<i>p</i> < 0.05) between enzymes regarding FI and WG occurs, but PHY seems to be the main contributor to improved performance. There was an interaction (<i>p</i> < 0.05) between bean cultivars and enzymes regarding nitrogen retention (NR) as PHY produced a greater coefficient when supplemented with a low phytate diet. The overall weight of the total GIT was not changed by the enzymes or bean cultivars (<i>p</i> > 0.05). The changes observed in different GIT segments are unlikely to have biological significance.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":"79 1","pages":"59-72"},"PeriodicalIF":2.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143970420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supplementation with heat-killed Akkermansia muciniphila EB-AMDK19 counteracts diet-induced overweight in beagles.","authors":"Moon-Gi Hong,Yoonmi Lee,Won-Seok Chung,Jae-Gu Seo,Sang-Nam Lee","doi":"10.1080/1745039x.2024.2397221","DOIUrl":"https://doi.org/10.1080/1745039x.2024.2397221","url":null,"abstract":"Obesity is a major health problem in dogs and is strongly associated with an increased risk of chronic inflammatory and metabolic diseases. The microaerophilic human gut bacterium Akkermansia muciniphila has been proposed as a potential preventive and therapeutic agent against obesity in both humans and mice; however, the protective effects of human-derived A. muciniphila against canine obesity remain unstudied. We previously demonstrated that the heat-killed A. muciniphila strain EB-AMDK19 (AMDK19-HK) isolated from the faeces of a healthy Korean exerts similar protective effects as the live bacterium in mice with high-fat-diet (HFD)-induced obesity. Here, we evaluated the effects of AMDK19-HK on body weight, body fat mass, haematological and biochemical parameters, and faecal microbiota composition in beagles fed an HFD for 12 weeks. AMDK19-HK supplementation effectively suppressed body weight increase, body fat deposition and serum triglyceride increase in the canine model; however, no significant changes in the overall haematological and biochemical parameters were observed, reflecting the direct anti-obesity effect of AMDK19-HK. Additionally, 16S rRNA gene sequencing revealed that AMDK19-HK supplementation induced significant changes in the faecal bacterial community, with an increased abundance of Firmicutes and a decreased abundance of Bacteroidota. These results suggest that AMDK19-HK can be used as a dietary supplement to counteract diet-induced overweight in dogs.","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":"3 1","pages":"1-19"},"PeriodicalIF":2.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimation of the digestible energy value of fat obtained from black soldier fly larvae (<i>Hermetia illucens</i>) for growing pigs.","authors":"Gergana Yordanova, Radka Dimova Nedeva, Apostol Petrov Apostolov, Isobel Margaret Whiting, Stephen Charles Mansbridge, Stephen Paul Rose, Vasil Radoslavov Pirgozliev","doi":"10.1080/1745039X.2024.2415546","DOIUrl":"10.1080/1745039X.2024.2415546","url":null,"abstract":"<p><p>An experiment was conducted to determine the digestible energy (DE) of insect fat (IF) from black soldier fly larvae (BSLF) for growing pigs. Saturated fatty acids (SFA) were the dominant group of fatty acids in the IF, with lauric acid (C12:0) and palmitic acid (C16:0) comprising the greatest concentrations in this group. Linoleic acids (C18:2) and oleic acids (C18:1) were the main unsaturated fatty acids. The IF contained 37.63 MJ/kg gross energy and 2.55 g/kg nitrogen. During the experiment, a DE bioassay was performed wherein growing pigs were fed one of the two experimental diets (either a maize-wheat-barley-soy basal diet or a diet containing 50 g/kg IF plus 950 g/kg of the basal diet). The DE of the IF was calculated based on the differences between the DE values of basal and test diet (substitution method). The DE of the IF was determined to be 36.86 MJ/kg. The IF contains a DE level comparable to vegetable oils, including soybean, rapeseed, corn and palm oils. The results showed that the examined fat from BSLF is a good source of available energy and can be incorporated in pig diets as an alternative energy source.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"315-324"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Parkia platycephala</i> replacing ground corn in the diet of confined lambs: intake, digestibility, ingestive behaviour, rumen fermentation and carcass yield.","authors":"Paloma Gabriela Batista Gomes, Mayara Raposo Santos, Gherman Garcia Leal de Araújo, Henrique Nunes Parente, Michelle de Oliveira Maia Parente, Anderson de Moura Zanine, Daniele de Jesus Ferreira, Edson Mauro Santos, Glayciane Costa Gois, Francisco Naysson de Sousa Santos, Juliana Silva de Oliveira","doi":"10.1080/1745039X.2024.2435135","DOIUrl":"10.1080/1745039X.2024.2435135","url":null,"abstract":"<p><p>This study aimed to evaluate the intake, digestibility, ingestive behaviour, productive performance, rumen fermentation and carcass yield of lambs fed diets with <i>Parkia platycephala pods</i> (PP) replacing ground corn. For this, twenty-eight castrated male lambs (18.34 ± 4.81 kg, 120 days of age), were distributed in randomised blocks with 4 treatments and 7 replicates. Four diets were formulated replacing ground corn with PP (0, 33, 66, and 100%) on a roughage: concentrate ratio of 30:70 on a dry matter basis. The feedlot period lasted for 60 days, and the animals were slaughtered consecutively. The replacing of ground corn with PP reduced the intakes of ether extract and metabolisable energy, digestibility of dry matter, organic matter, crude protein, ether extract, neutral detergent fibre, total digestible nutrients, isovalerate, and omental + mesenteric fat, while it increased the digestibility of non-fibrous carbohydrates, carcass finishing, and the yields of rumen, reticulum, and omasum (<i>p < 0.05</i>). A quadratic effect was observed for the time of chews per rumen bolus, number of rumination chews per day, number of rumination chews per bolus, and number of rumination chews per minute, propionate (<i>p</i> = 0.002), butyrate (<i>p</i> < 0.01) and total short chain fatty acids (SCFA) (<i>p < 0.05</i>) according to the increase in PP levels replacing ground corn in diets offered to lambs. The rumen pH was reduced and the NH₃-N increased according to the evaluation period (<i>p < 0.05</i>). The highest concentration of total SCFA was observed in the collection carried out at 09 h (<i>p < 0.05</i>). The use of up to 100% PP in diets offered to lambs is recommended as it provides nutrient intake, weight gain, and carcass yield similar to ground corn.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"381-397"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142827029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rain-induced sodium dissolution and loose mineral mixture runoff in uncovered feeders: possible effects on mineral intake, growth performance, and nutritional needs fulfilment of grazing cattle.","authors":"Wallyson Amaral de Almeida, Luís Carlos Vinhas Itavo, Manoel Gustavo Paranhos da Silva, Andrei Pereira Neves, Thiago Luís Alves Campos de Araújo, Nickson Milton Corrêa Siqueira, Zey Welington Gomes de Souza, Denise Baptaglin Montagner, Valter Harry Bumbieris Júnior, Bruno Marson, Márcio de Nadai Bonin, Rodrigo da Costa Gomes","doi":"10.1080/1745039X.2024.2426751","DOIUrl":"10.1080/1745039X.2024.2426751","url":null,"abstract":"<p><p>The objective was to investigate the effect of rainfall on sodium (Na) dissolution and total losses by runoff of loose mineral mixtures (MM) available in uncovered feeders to grazing cattle, as well as the possible impacts on their growth performance and fulfilment of Na nutritional needs. Experiments (<i>n</i> = 7) were conducted to quantify the amount of Na lost due to rainfall and to evaluate the effects of different Na levels in the MM (35, 70, 105, and 140 g Na/kg) on MM assumed intake and growth performance. Cattle grazed Brachiaria sp. pastures and received free-choice MM in uncovered feeders throughout four to nine evaluation periods lasting 14 to 21 d each. MM assumed intake from the feeder was measured in each period as the difference between the supplied MM mass and the unconsumed MM mass. A new methodology was proposed to measure MM losses by runoff (exclusion feeder). The mass of runoff MM and the volume of runoff rainwater were both determined and analysed for their mineral content. The dietary Na requirement was estimated using different feeding systems. The minimum MM Na content to meet dietary Na requirements was estimated in different scenarios. Sodium chloride composed 28% of the runoff MM mass, in average. The action of rain may reduce MM Na content by 28% in a single rainfall event. Na content strongly affected MM assumed intake and, possibly, growth rate. MM losses by runoff were estimated at 25.5%, according to the exclusion feeder methodology. The minimum required MM Na content for meeting dietary Na needs may reach up to 87.3 g Na/kg. About 27% of evaluated periods may have failed to fully meet cattle Na requirements. The action of rain in unsheltered loos MM may result in unbalanced mineral consumption and unmet Na needs, leading to impaired mineral nutrition of grazing cattle, especially in tropical conditions.</p>","PeriodicalId":8157,"journal":{"name":"Archives of Animal Nutrition","volume":" ","pages":"325-339"},"PeriodicalIF":2.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142715232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}