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Acta Agriculturae Scandinavica Section A-Animal Science最新文献

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Exploring the relationship between CO2 emissions from on-farm use of diesel fuel and costs associated with forage harvesting – A win-to-win situation 探索农场使用柴油产生的二氧化碳排放与草料收获成本之间的关系——双赢局面
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-08-18 DOI: 10.1080/09064702.2020.1804993
B. G. Hansen
{"title":"Exploring the relationship between CO2 emissions from on-farm use of diesel fuel and costs associated with forage harvesting – A win-to-win situation","authors":"B. G. Hansen","doi":"10.1080/09064702.2020.1804993","DOIUrl":"https://doi.org/10.1080/09064702.2020.1804993","url":null,"abstract":"ABSTRACT The aims of this paper were to explore which factors explain (i) the direct emission of CO2 from on-farm use of fuel to harvest forage and (ii) the costs of different harvesting management practices. Data on harvesting practices, CO2 emission and forage costs were collected through farm visits on 184 dairy farms in all regions of Norway in 2017 and 2018. To analyze data, machine learning methods were used. The findings show that forage harvesting capacity and forage yield are associated with CO2 emissions from on-farm use of diesel fuel and harvesting costs. Factors that mitigate CO2 emissions from harvesting coincide with factors that contribute to reduced harvesting costs. Thus the findings suggest a ‘win-to-win’ relationship between the interests of the farming business and environmental sustainability. The findings have implications for dairy farmers and policy makers.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90876314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dietary addition of soybean oil on performance, rumen fermentation and meat quality of finishing lambs 饲粮添加大豆油对育肥羔羊生产性能、瘤胃发酵和肉品质的影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-07-22 DOI: 10.1080/09064702.2020.1791949
Jorge Vicente, J. Vallejo, S. López-Aguirre, H. Lee-Rangel, M. Martínez-Hernández, P. Paredes-Ramos, J. Pinos-Rodríguez
{"title":"Dietary addition of soybean oil on performance, rumen fermentation and meat quality of finishing lambs","authors":"Jorge Vicente, J. Vallejo, S. López-Aguirre, H. Lee-Rangel, M. Martínez-Hernández, P. Paredes-Ramos, J. Pinos-Rodríguez","doi":"10.1080/09064702.2020.1791949","DOIUrl":"https://doi.org/10.1080/09064702.2020.1791949","url":null,"abstract":"ABSTRACT To evaluate dietary addition of soybean oil (SBO) on growth, rumen fermentation, carcass and meat traits, 21 male Rambouillet lambs (2.5-mo-old and weighing 18 ± 1.45 kg) were distributed randomly to a diet with 0, 25 or 50 g SBO/kg dry matter. Trial lasted 60 d. Dietary SBO did not affect growth, carcass traits or muscle conformation. Energy intake, dorsal fat and fatness degree, as well as rumen pH, acetate and acetate:propionate ratio had a linear increment (P < .05) with larger amounts of SBO in the diet. Also, increased SBO levels in the diet linearly augmented (P < .05) meat brightness (L*), muscle fat content and C18:1 t11 and C18:2 proportion. Dietary SBO at 50 g/kg DM for finishing lambs may be a feeding option to reduce the amount of energy from grains in the diet and favour deposition of fatty acids in meat that can benefit consumer health.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85193683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inbreeding affects racing performance negatively in the Standardbred trotter 近亲繁殖对标准种马驹的比赛表现有负面影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-06-29 DOI: 10.1080/09064702.2020.1779337
S. Samsonstuen, N. I. Dolvik, H. F. Olsen, S. Lykkjen, G. Klemetsdal
{"title":"Inbreeding affects racing performance negatively in the Standardbred trotter","authors":"S. Samsonstuen, N. I. Dolvik, H. F. Olsen, S. Lykkjen, G. Klemetsdal","doi":"10.1080/09064702.2020.1779337","DOIUrl":"https://doi.org/10.1080/09064702.2020.1779337","url":null,"abstract":"ABSTRACT We estimated the effect of inbreeding on racing performance in the Standardbred trotter. A random sample of 1,217 horses with organized pedigree was utilized to calculate individual proportions of French and American ancestry and their heterozygosity and inbreeding coefficients. Average earnings per start for the 807 raced horses summarized between three and five years of age were analysed, after first applying a fourth-root transformation followed by standard-normalization within their birth-year group (1988 and 2006/2007). The resulting variable was analysed using a linear model with fixed effects of sex, additive breed effect and a regression on the squared inbreeding coefficient. The model was expanded with a fixed effect of birth-year and a random effect of animal. In both models, the regression coefficient for the squared inbreeding coefficient was found negative (P < 0.04). Breed effect was not significant. Heritability was estimated as 0.227 ± 0.106.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74685141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Milk fatty acid profiles from inclusion of different calcium salts in dairy cow diets 在奶牛日粮中加入不同钙盐对乳脂肪酸的影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-06-24 DOI: 10.1080/09064702.2020.1781925
M. Lindberg
{"title":"Milk fatty acid profiles from inclusion of different calcium salts in dairy cow diets","authors":"M. Lindberg","doi":"10.1080/09064702.2020.1781925","DOIUrl":"https://doi.org/10.1080/09064702.2020.1781925","url":null,"abstract":"ABSTRACT This experiment evaluated the effects of inclusion of three different types of calcium salts (CaS): mixed fatty acids, 70% palmitic acid-based and rapeseed oil-based, on milk production and milk fatty acid composition. Dietary treatments were randomly assigned to six mid-lactation dairy cows in a double Latin square experimental design with three 21-days experimental periods. All cows received a similar amount of grass-clover silage and concentrates and an additional 800 g of CaS daily. Analysis of milk fatty acids showed that a high proportion of palmitic acid in the feed resulted in milk fat with significantly higher levels of C16 fatty acids than with CaS based on rapeseed oil. Milk from cows on the diet with rapeseed oil based CaS contained significantly higher concentrations of C18 fatty acids, monounsaturated fatty acids, polyunsaturated fatty acids and trans fatty acids than milk from cows on the diet with palmitic acid CaS.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73730122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Associations between litter size and medical treatment of sows during farrowing and lactation 产仔数与母猪在分娩和哺乳期间的医疗之间的关系
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-06-21 DOI: 10.1080/09064702.2020.1779800
E. Andersson, J. Frössling, R. Westin, B. Algers, S. Gunnarsson
{"title":"Associations between litter size and medical treatment of sows during farrowing and lactation","authors":"E. Andersson, J. Frössling, R. Westin, B. Algers, S. Gunnarsson","doi":"10.1080/09064702.2020.1779800","DOIUrl":"https://doi.org/10.1080/09064702.2020.1779800","url":null,"abstract":"ABSTRACT Sow litter sizes have increased recently, and there is a lack of data on the effect of litter size on sow health and sow medical treatment. This study investigated associations between litter size and medical treatment of sows, using data for a 10-year period from one Swedish research farm. The data comprised 1947 litters from 655 Yorkshire sows. Association between litter size and medical treatment of sows during farrowing and lactation investigated using a multivariable multilevel logistic regression model. We found that odds of medical treatment of sows decreased for each additional piglet born up to five piglets (odds ratio 0.50, p = .002). For litter sizes ≥5, the odds for each additional piglet born (odds ratio 1.11, p < .001). Problems with milk let-down in early lactation were the main reason for treatment. Results imply that sows with very small or very large litters may be less profitable.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80704108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Providing additional objects to straw reduces piglets’ redirected behaviour post-weaning but influences weight gain pre-weaning negatively 在秸秆中添加其他物质可减少仔猪断奶后的重定向行为，但对断奶前的增重有负面影响
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-06-09 DOI: 10.1080/09064702.2020.1775286
L. Lidfors, Pernilla Hultman, M. Zupan
{"title":"Providing additional objects to straw reduces piglets’ redirected behaviour post-weaning but influences weight gain pre-weaning negatively","authors":"L. Lidfors, Pernilla Hultman, M. Zupan","doi":"10.1080/09064702.2020.1775286","DOIUrl":"https://doi.org/10.1080/09064702.2020.1775286","url":null,"abstract":"ABSTRACT We investigated the post-weaning effect of providing additional objects (i.e. rope, ball, tyre) to commercial piglets given straw pre- and post-weaning on behaviour and average daily gain (ADG). Piglets from litters with objects (O, n = 20 in 5 litters) and controls (C, n = 20 in 5 litters) were observed from 24 h post-weaning and during six days. Piglets were weighed at birth, weaning and 11 days post-weaning. O-piglets performed less littermate manipulation (P < 0.05), exploring pen fixtures (P < 0.1) and lying (P < 0.1) but spent more time in the creep post-weaning than C-piglets (P < 0.1). Social or locomotor play was expressed similarly in both treatments. Day strongly influenced the behaviour of pigs post-weaning. O-piglets had significantly lower pre-weaning ADG than C-piglets (P < 0.05), but there was no significant difference in post-weaning ADG between the treatments. Providing objects to piglets around weaning may reduce some negative behaviours, but may affect weight gain negatively.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82282379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Conservation of the dark bee (Apis mellifera mellifera): Estimating C-lineage introgression in Nordic breeding stocks 黑蜂(Apis mellifera mellifera)的保护:北欧繁殖种群中c -谱系渗入的估计
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-06-01 DOI: 10.1080/09064702.2020.1770327
L. Groeneveld, L. Kirkerud, Bjørn Dahle, M. Sunding, M. Flobakk, M. Kjos, Dora Henriques, M. A. Pinto, Peer Berg
{"title":"Conservation of the dark bee (Apis mellifera mellifera): Estimating C-lineage introgression in Nordic breeding stocks","authors":"L. Groeneveld, L. Kirkerud, Bjørn Dahle, M. Sunding, M. Flobakk, M. Kjos, Dora Henriques, M. A. Pinto, Peer Berg","doi":"10.1080/09064702.2020.1770327","DOIUrl":"https://doi.org/10.1080/09064702.2020.1770327","url":null,"abstract":"ABSTRACT Displacement and admixture are threatening the survival and genetic integrity of the European dark bee, Apis mellifera mellifera. Studies on the phenotype-genotype map and genotype by environment interactions in honey bees are demonstrating that variation at subspecies level exists and is worth conserving. SNP-based tools for monitoring genetic integrity in bees have been developed, but are not yet widely used by European dark bee breeders. We used a panel of ancestry informative SNP markers to assess the level of admixture in Nordic dark bee breeding stocks. We found that bee breeders falsely classified admixed stocks based on morphometry as purebred and vice versa. Even though most Nordic A. m. mellifera breeding stocks have low proportions of C-lineage ancestry, we recommend to incorporate genotyping in Nordic dark bee breeding programmes to ensure that minimal genetic diversity is lost, while the genetic integrity of the subspecies is maintained.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75971112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Ruminal survival of Propionibacterium thoenii T159 in dairy cows at high feed intake 高采食量奶牛瘤胃梭尼丙酸杆菌T159的存活率
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-06-01 DOI: 10.1080/09064702.2020.1769719
Jikun Chen, H. Holo, A. Schwarm, O. M. Harstad
{"title":"Ruminal survival of Propionibacterium thoenii T159 in dairy cows at high feed intake","authors":"Jikun Chen, H. Holo, A. Schwarm, O. M. Harstad","doi":"10.1080/09064702.2020.1769719","DOIUrl":"https://doi.org/10.1080/09064702.2020.1769719","url":null,"abstract":"ABSTRACT Propionibacterium thoenii strain T159 (5 × 1011 CFU) were administered daily in the rumen of four Norwegian Red dairy cows. Total Propionibacterium in the rumen were substantially increased during and after the treatment with T159 relative to the background. Strain T159 was able to persist for at least five days in the rumen of dairy cows at high dry matter intake (3.9% of body weight).","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77938230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Inbreeding and health problems prevalence in a colony of guide dogs: A cohort of 40 Labrador Retrievers 一群导盲犬的近亲繁殖和健康问题:40只拉布拉多寻回犬
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-05-12 DOI: 10.1080/09064702.2020.1759679
F. Cecchi, T. Vezzosi, G. Branchi, G. Barsotti, F. Macchioni
{"title":"Inbreeding and health problems prevalence in a colony of guide dogs: A cohort of 40 Labrador Retrievers","authors":"F. Cecchi, T. Vezzosi, G. Branchi, G. Barsotti, F. Macchioni","doi":"10.1080/09064702.2020.1759679","DOIUrl":"https://doi.org/10.1080/09064702.2020.1759679","url":null,"abstract":"ABSTRACT The aims of this study were to analyze the inbreeding (F) in a colony of Labrador Retriever (LR) guide dogs using information from pedigrees and to verify its role in increasing the occurrence of various genetic diseases (hereditary eye diseases, heart problems, hip and elbow dysplasia). Pedigree data and medical reports were collected for 40 LR bred for training by the National Guide Dog School (NGDS) of Scandicci (Italy). The chi-square independence test for two effects was performed: inbreeding level and disorders occurrence. The main disorder highlighted was elbow dysplasia (ED) (17.5%, 95% CI 8.40–26.60%). The number of inbred animals was 15 (37.5%) with an average inbreeding coefficient of 0.017. The association between inbreeding levels and disorders was not significant as there was a similar percentage of inbred animals and non-inbred animals among the sick. The results highlight that disease occurrence does not depend on low inbreeding levels.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87957949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Population structure and genetic characterization of two native Danish sheep breeds 两个丹麦本土绵羊品种的种群结构和遗传特征
IF 0.9 4区 农林科学
Acta Agriculturae Scandinavica Section A-Animal Science Pub Date : 2020-04-02 DOI: 10.1080/09064702.2019.1639804
A. Schönherz, B. Szekeres, Vivi Hunnicke Nielsen, B. Guldbrandtsen
{"title":"Population structure and genetic characterization of two native Danish sheep breeds","authors":"A. Schönherz, B. Szekeres, Vivi Hunnicke Nielsen, B. Guldbrandtsen","doi":"10.1080/09064702.2019.1639804","DOIUrl":"https://doi.org/10.1080/09064702.2019.1639804","url":null,"abstract":"ABSTRACT Genetic diversity in livestock animals has become recognized as important genetic resource for future sustainable livestock production. Especially native breeds, adapted to their local environment, are of considerable interest. Here, we report a genome-wide characterization of two native Danish sheep breeds, the Danish Landrace sheep and the Danish White-Headed Marsh sheep. We investigated the genetic diversity both at national and European breed level using a European-derived reference panel. The native Danish breeds are genetically distinct from other Nordic breeds. Their closest relatives are Border Leicester, Galway, and Texel. Apart from gene flow between native Danish breeds, Texel admixture was most dominant. For Danish Landrace sheep, a population split into two genetically distinct sub-populations was detected. Compared to other livestock species, genomic inbreeding was moderate. However, among European-derived sheep the native Danish breeds were among the 10 most inbred investigated, illustrating the need for sustainable management strategies to preserve genetic diversity.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89299291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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