JDS communications最新文献

{"title":"Evaluation of NASEM 2021 on predictions of milk protein yield on Quebec commercial dairy farms","authors":"S. Binggeli, H. Lapierre, R. Martineau, D. Ouellet, E. Charbonneau, D. Pellerin","doi":"10.3168/jdsc.2024-0549","DOIUrl":"https://doi.org/10.3168/jdsc.2024-0549","url":null,"abstract":"","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140796439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inhibitory effect of bovine milk osteopontin on the initial attachment of Streptococcus mutans","authors":"Hisako Ishizuka, Kazuna Ishihara, Hideo Yonezawa, Kazuyuki Ishihara, Takashi Muramatsu","doi":"10.3168/jdsc.2024-0558","DOIUrl":"https://doi.org/10.3168/jdsc.2024-0558","url":null,"abstract":"","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140797065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Social network analysis to predict social behavior in dairy cattle","authors":"H. Marina, W.F. Fikse, L. Rönnegård","doi":"10.3168/jdsc.2023-0507","DOIUrl":"https://doi.org/10.3168/jdsc.2023-0507","url":null,"abstract":"","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140786963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of an additional GnRH two days after the initiation of a resynchronization program 25 days after artificial insemination on fertility of lactating dairy cows","authors":"I. Leão, Anthony Carbajal, César Narciso, C. Consentini, R. Sartori, João Paulo Nascimento Martins","doi":"10.3168/jdsc.2023-0540","DOIUrl":"https://doi.org/10.3168/jdsc.2023-0540","url":null,"abstract":"","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140784877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diurnal shifts of rumen fermentation and microbial profiles revealed circadian rhythms of rumen bacteria, methanogens, and protozoa under high-grain and high-forage diets","authors":"Yangyi Hao, Jianmin Xia, Wei Wang, Yajing Wang, Z. Cao, H. Yang, Linshu Jiang, Zhu Ma, Kangkang Chu, Shuang Wang, Le Luo Guan, Shengli Li","doi":"10.3168/jdsc.2023-0526","DOIUrl":"https://doi.org/10.3168/jdsc.2023-0526","url":null,"abstract":"","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140768525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimation of the nutrient variation in feed delivery and impacts on lactating dairy cattle","authors":"A. Carroll, K.J. Hanford, C. Abney-Schulte, P. Kononoff","doi":"10.3168/jdsc.2024-0564","DOIUrl":"https://doi.org/10.3168/jdsc.2024-0564","url":null,"abstract":"","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140789746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genomic prediction of male fertility in Brown Swiss cattle","authors":"H. Pacheco, A. Rossoni, A. Cecchinato, F. Peñagaricano","doi":"10.3168/jdsc.2023-0533","DOIUrl":"https://doi.org/10.3168/jdsc.2023-0533","url":null,"abstract":"","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140771446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ruminal pH sensing for monitoring volatile fatty acid concentrations in response to short-term dietary disruption","authors":"K. Amirault,&nbsp;R. Wright,&nbsp;S. Sujani,&nbsp;B.R. dos Reis,&nbsp;J. Osorio,&nbsp;T. Fernandes,&nbsp;R.R. White","doi":"10.3168/jdsc.2023-0409","DOIUrl":"10.3168/jdsc.2023-0409","url":null,"abstract":"<div><p>The purpose of this study was to investigate the potential of using ruminal pH measurements to track time-series ruminal volatile fatty acid (VFA) concentrations occurring in response to short-term dietary disruption. Four ruminally cannulated dry Holstein dairy cows were individually housed and assigned to 4 treatments in a Latin square design. Treatments differing in forage-to-concentrate (F:C) ratio (100:0 to 55:45) were used because they were expected to result in large differences in VFA concentration, over which the relationships between pH and VFA could be robustly evaluated. Each sampling period lasted 36 h. Animals were removed from pasture and fasted for 24 h, after which time they were fed their treatment ration for 2 h and sampled for rumen fluid hourly for 12 h. Rumen fluid samples were analyzed immediately for pH, frozen, and subsequently analyzed for VFA concentrations using gas chromatography. Animals were returned to pasture for 7 d between sampling periods. To confirm that the short-term dietary disruptions resulted in expected variation in VFA concentrations, mean VFA concentrations during each animal period (n = 16) were analyzed using a linear mixed effects model with fixed (linear and quadratic) effects for F:C ratio and random effects for animal and period. Results indicated significant changes in VFA concentration across F:C ratio, but no significant shifts in VFA molar proportions, perhaps due to the short-term nature of the feeding protocol. To explore opportunity to use pH measurements to explain variability in VFA concentrations in real time across dietary conditions, a linear mixed-effect model was used to link the time-series measurements (n = 207). The VFA concentrations were analyzed with linear mixed effect models using linear and quadratic terms for pH, and random effects for animal and period. These models had poor accuracy, with residual error variance ranging from 21% to 38%, and residuals patterning significantly with F:C ratio. The data suggest that pH may lack reliability for VFA prediction in short-term feeding scenarios differing considerably in F:C ratio.</p></div>","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666910223001096/pdfft?md5=069304ed5fc8acc5758f7df1dbc4a03a&pid=1-s2.0-S2666910223001096-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139292823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the effects of prepartum anti-inflammatory therapies on type 1/type 2 immunity ratio using a rapid blood test","authors":"J. Spring ,&nbsp;Q. Huo ,&nbsp;E. Jimenez ,&nbsp;M. Martinez ,&nbsp;P. Zarei ,&nbsp;J. Lection ,&nbsp;E. Hovingh ,&nbsp;J. Lawhead ,&nbsp;R.H. Sorto Cruz ,&nbsp;A.A. Barragan","doi":"10.3168/jdsc.2023-0444","DOIUrl":"10.3168/jdsc.2023-0444","url":null,"abstract":"<div><p>The objective of this study was to assess (1) the effects of prepartum administration of anti-inflammatory therapies on type 1/type 2 immunity ratio using a rapid blood test (D2Dx immunity test; Nano Discovery Inc.), and (2) correlations between rapid blood test scores and daily milk yield in Holstein dairy cows. At 14 d before the expected calving date, cows (n = 64) and heifers (n = 23) were blocked by body condition score (optimal = 3.25–3.5; high ≥3.75) and parity (nulliparous, parous), and randomly allocated to one of 3 treatment groups (1) ASA (n = 29) = receive one oral treatment with administration of acetylsalicylic acid (4 boluses; 480 grain/bolus); (2) MEL (n = 31) = receive one oral administration with meloxicam (1 mg/kg of body weight), or (3) PLC (n = 27) = receive one oral treatment with 4 gelatin capsules filled with water. Blood samples were collected weekly starting 1 wk before treatment until 3 wk after calving for assessment of type 1/type 2 immunity ratio using a rapid blood test (i.e., D2Dx immunity test). A higher D2Dx score corresponds to a higher type 1/type 2 ratio. Furthermore, blood samples were collected within 72 h before and after calving by farm personnel. Daily milk yield for the first 60 d in milk (DIM) was collected from on-farm computer records. The data were analyzed using MIXED procedure of SAS (SAS Institute Inc.) as a randomized complete block design. On average enrolled cows received treatment administration 10 d before the actual calving date (standard deviation = 5.10 d). There was a tendency for a treatment by day interaction. Cows treated with ASA had higher type 1/type 2 ratio within 3 d after calving compared with MEL and PLC cows (ASA = 0.065 ± 0.002; MEL = 0.059 ± 0.002; PLC = 0.053 ± 0.002). Similarly, ASA and MEL cows had a higher type 1/type 2 ratio at 7 ± 3 DIM compared with PLC cows (ASA = 0.062 ± 0.002; MEL = 0.064 ± 0.002; PLC = 0.056 ± 0.002). Regardless of treatment, there was an interaction between parity and day. Parous cows had higher type 1/type 2 ratios compared with nulliparous cows at 14 ± 3 d before calving and at 7 ± 3, 14 ± 3, and 21 ± 3 d after calving. Furthermore, there was a positive correlation between D2Dx scores at 14 ± 3 DIM and average daily milk yield in the first 60 DIM. These results suggest that prepartum anti-inflammatory therapies may cause an increased shift in type 1 immunity around calving. Similarly, parous cows may have an increased shift in type 1 immunity after calving. Interestingly, higher type 1/type 2 ratios may be associated with higher milk yields in the first 60 DIM. Larger studies are needed to identify associations between the D2Dx immunity test and cow health and performance, as well as to assess the applicability of these types of tests in a conventional farm setting.</p></div>","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666910223001230/pdfft?md5=da7d2f9a5a008b9032e74b0650b2dfbe&pid=1-s2.0-S2666910223001230-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139301016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Potential for low-forage diets to maintain milk production in forage-limited situations","authors":"Ariana Negreiro,&nbsp;Adam L. Lock","doi":"10.3168/jdsc.2023-0407","DOIUrl":"10.3168/jdsc.2023-0407","url":null,"abstract":"<div><p>We determined the effect of feeding diets similar in neutral detergent fiber (NDF), starch, and crude protein (CP) with different amounts of forage on the yields of milk and milk components of mid-lactation dairy cows. Thirty-two Holstein cows (132 ± 68 d in milk) were used in a crossover design with 2 consecutive 28-d periods, with sample and data collection during the final 5 d of each period. Treatment diets were (1) control diet (CON) containing high forage (55.5% diet dry matter [DM]; forage NDF 19.2% diet DM) and no supplemental fatty acids or AA; and (2) low-forage (LF) diet containing low forage (36.6% diet DM; forage NDF 12.7% diet DM), including supplemental fat (1.43% diet DM; 82% C16:0-enriched supplement) and rumen-protected methionine and lysine. Diets were balanced for similar NDF (∼30.2% diet DM), starch (∼26.7% diet DM), and CP (∼16.2% diet DM). There was no effect of treatment on milk yield, milk fat content, or body weight. Compared with CON, LF increased DM intake (30.8 vs. 31.8 kg/d), milk fat yield (1.78 vs. 1.84 kg/d), milk protein yield (1.47 vs. 1.56 kg/d), milk protein content (3.24% vs. 3.41%), energy-corrected milk (48.3 vs. 50.2 kg/d), and body condition score (3.2 vs. 3.3). Our results demonstrate that feeding a low-forage diet supplemented with a C16:0-enriched fatty acid supplement and AA increased DM intake and the yields of milk fat and protein, without changes in body weight. The effect of a low-forage diet without supplemental fatty acids and AA was not tested.</p></div>","PeriodicalId":94061,"journal":{"name":"JDS communications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666910223001084/pdfft?md5=e2030bbe8274af6118ed42aabec6de7b&pid=1-s2.0-S2666910223001084-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139306044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}