Pub Date : 2021-01-02DOI: 10.1080/09064702.2020.1866061
S. Sampels, J. Pickova, S. Gatchell, A. Karlsson, J. Yngvesson, K. Arvidsson Segerkvist
ABSTRACT The aim was to evaluate the effect of two different rearing systems, indoor small pens (S) and big pens with outdoor access (B), on meat quality and fatty acid (FA) composition of two slow growing broiler hybrids (Rowan Ranger [RR] and Hubbard CYJA57 [H]). In addition, changes in the phospholipid FA composition, due to the possibility of more movement, were investigated. The results regarding meat quality were exclusively influenced by genotype, where RR chickens had higher breast weight, higher Warner-Bratzler shear force and higher pH than H chickens. Differences in lipid composition were found both due to hybrid and to the rearing system. The H birds were slightly leaner and had, therefore, higher proportions of phospholipids. Rearing in a big pen resulted in lower concentrations of 16:0 and higher concentrations of both total n-3 and n-6 fatty acids and of individual long chain polyunsaturated FA.
{"title":"Effect of genetic background, pen size and outdoor access on meat quality in two slow growing broiler hybrids","authors":"S. Sampels, J. Pickova, S. Gatchell, A. Karlsson, J. Yngvesson, K. Arvidsson Segerkvist","doi":"10.1080/09064702.2020.1866061","DOIUrl":"https://doi.org/10.1080/09064702.2020.1866061","url":null,"abstract":"ABSTRACT The aim was to evaluate the effect of two different rearing systems, indoor small pens (S) and big pens with outdoor access (B), on meat quality and fatty acid (FA) composition of two slow growing broiler hybrids (Rowan Ranger [RR] and Hubbard CYJA57 [H]). In addition, changes in the phospholipid FA composition, due to the possibility of more movement, were investigated. The results regarding meat quality were exclusively influenced by genotype, where RR chickens had higher breast weight, higher Warner-Bratzler shear force and higher pH than H chickens. Differences in lipid composition were found both due to hybrid and to the rearing system. The H birds were slightly leaner and had, therefore, higher proportions of phospholipids. Rearing in a big pen resulted in lower concentrations of 16:0 and higher concentrations of both total n-3 and n-6 fatty acids and of individual long chain polyunsaturated FA.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"76 1","pages":"13 - 22"},"PeriodicalIF":0.9,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72865872","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}
Pub Date : 2021-01-02DOI: 10.1080/09064702.2020.1869817
E. Hartmann, M. Högberg, K. Olsson, K. Dahlborn
ABSTRACT Seven Swedish domestic goats (Capra hircus, 2–3 years) and their kids (37 ± 4 days) were subjected to indoor temperatures above 30°C during 15 days (periods H1–H4; periods without heat C1, C2) to study acclimation. Rectal temperature (RT) increased by 1.1°C during H1 to H3 (P < 0.001 vs. C1), but only by 0.6°C during H4 (P < 0.001 vs. C1; P < 0.024 vs. H1). Respiration rate (RR) increased less during H4 than during H1 (P < 0.001). Skin temperature increased during heat (P < 0.001), and skin evaporation (SE), which differed from C1 to H4 (P < 0.05). Goats increased water intake during heat, resulting in lowered milk osmolality while milk offtake was maintained. Kids' thermoregulatory responses resembled those of the goats. Thus, decreasing RT and RR simultaneously with increasing SE at the end of the heat indicate that goats had started to acclimate.
{"title":"Physiological and behavioural responses of Swedish domestic goats and their kids (Capra hircus) to 15 days of heat exposure","authors":"E. Hartmann, M. Högberg, K. Olsson, K. Dahlborn","doi":"10.1080/09064702.2020.1869817","DOIUrl":"https://doi.org/10.1080/09064702.2020.1869817","url":null,"abstract":"ABSTRACT Seven Swedish domestic goats (Capra hircus, 2–3 years) and their kids (37 ± 4 days) were subjected to indoor temperatures above 30°C during 15 days (periods H1–H4; periods without heat C1, C2) to study acclimation. Rectal temperature (RT) increased by 1.1°C during H1 to H3 (P < 0.001 vs. C1), but only by 0.6°C during H4 (P < 0.001 vs. C1; P < 0.024 vs. H1). Respiration rate (RR) increased less during H4 than during H1 (P < 0.001). Skin temperature increased during heat (P < 0.001), and skin evaporation (SE), which differed from C1 to H4 (P < 0.05). Goats increased water intake during heat, resulting in lowered milk osmolality while milk offtake was maintained. Kids' thermoregulatory responses resembled those of the goats. Thus, decreasing RT and RR simultaneously with increasing SE at the end of the heat indicate that goats had started to acclimate.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"18 1","pages":"41 - 49"},"PeriodicalIF":0.9,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88477529","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}
Pub Date : 2021-01-02DOI: 10.1080/09064702.2020.1867632
J. Clasen, M. Kargo, W. Fikse, E. Strandberg, A. Wallenbeck, S. Østergaard, L. Rydhmer
ABSTRACT Farmers play a key role in conserving native livestock breeds, but without economic support, farms with native breeds may not be viable. We hypothesized that terminal crossbreeding can improve herd economy and decrease the economic support needed from society. Three scenarios were simulated using SimHerd Crossbred: a herd of purebred Swedish Polled Cattle, a herd of purebred Swedish Red, and a herd of 75% Swedish Polled Cattle and 25% F1 crossbreds. The results showed annual contribution margin per cow in the herd can be increased by €181 by crossbreeding compared with pure-breeding with the native breed, giving a 13.6% growth in contribution margin. However, the needed cost in subsidies paid by the government will remain unchanged if the population size of the native breed is to be maintained. Combining a crossbreeding strategy with the marketing of niche products may facilitate the conservation of native cattle.
{"title":"Conservation of a native dairy cattle breed through terminal crossbreeding with commercial dairy breeds","authors":"J. Clasen, M. Kargo, W. Fikse, E. Strandberg, A. Wallenbeck, S. Østergaard, L. Rydhmer","doi":"10.1080/09064702.2020.1867632","DOIUrl":"https://doi.org/10.1080/09064702.2020.1867632","url":null,"abstract":"ABSTRACT Farmers play a key role in conserving native livestock breeds, but without economic support, farms with native breeds may not be viable. We hypothesized that terminal crossbreeding can improve herd economy and decrease the economic support needed from society. Three scenarios were simulated using SimHerd Crossbred: a herd of purebred Swedish Polled Cattle, a herd of purebred Swedish Red, and a herd of 75% Swedish Polled Cattle and 25% F1 crossbreds. The results showed annual contribution margin per cow in the herd can be increased by €181 by crossbreeding compared with pure-breeding with the native breed, giving a 13.6% growth in contribution margin. However, the needed cost in subsidies paid by the government will remain unchanged if the population size of the native breed is to be maintained. Combining a crossbreeding strategy with the marketing of niche products may facilitate the conservation of native cattle.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"70 1","pages":"1 - 12"},"PeriodicalIF":0.9,"publicationDate":"2021-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81612218","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}
Pub Date : 2020-11-26DOI: 10.1080/09064702.2020.1849380
B. Staaf Larsson, E. Petersson, M. Steen, J. Hultgren
ABSTRACT We aimed to study to what extent body condition and skin soiling in cattle are rated differently depending on the profession, education and professional experience of assessors. Data were collected at 15 group-training sessions in the years 2009–2016. Totally, 569 persons; Swedish animal welfare inspectors, veterinarians/advisers, animal welfare scientists, other animal professionals as well as undergraduate students in animal science rated a set of 6–40 photos with respect to animal body condition, animal skin soiling, and recommended corrective action in response to perceived animal soiling. The more extensive animal science education, the less prone animal welfare inspectors were to give higher body condition scores. Students had a higher overall probability of rating the degree of soiling higher than the animal welfare inspectors and veterinarians/advisers. Students also recommended stricter corrective actions than did welfare inspectors and veterinarians/advisers, and veterinarians/advisers recommended less strict actions than animal welfare inspectors.
{"title":"Visual assessment of body condition and skin soiling in cattle by professionals and undergraduate students using photo slides","authors":"B. Staaf Larsson, E. Petersson, M. Steen, J. Hultgren","doi":"10.1080/09064702.2020.1849380","DOIUrl":"https://doi.org/10.1080/09064702.2020.1849380","url":null,"abstract":"ABSTRACT We aimed to study to what extent body condition and skin soiling in cattle are rated differently depending on the profession, education and professional experience of assessors. Data were collected at 15 group-training sessions in the years 2009–2016. Totally, 569 persons; Swedish animal welfare inspectors, veterinarians/advisers, animal welfare scientists, other animal professionals as well as undergraduate students in animal science rated a set of 6–40 photos with respect to animal body condition, animal skin soiling, and recommended corrective action in response to perceived animal soiling. The more extensive animal science education, the less prone animal welfare inspectors were to give higher body condition scores. Students had a higher overall probability of rating the degree of soiling higher than the animal welfare inspectors and veterinarians/advisers. Students also recommended stricter corrective actions than did welfare inspectors and veterinarians/advisers, and veterinarians/advisers recommended less strict actions than animal welfare inspectors.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"112 1","pages":"31 - 40"},"PeriodicalIF":0.9,"publicationDate":"2020-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87898012","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}
Pub Date : 2020-11-12DOI: 10.1080/09064702.2020.1842488
M. Bhatti, S. Godfrey, Ryan H. L. Ip, M. Gaarder, Shakar Aslam, G. Steinheim, P. Wynn, D. Hopkins, Reinert Horneland, L. Eik, T. Ådnøy
ABSTRACT Although Norway is the largest sheep meat producer in Scandinavia and Norwegian Muslims are expected to double in population in the next decade, the overall local per capita red meat consumption is still low. Meanwhile, Norwegian Muslims’ purchasing preferences on lamb meat products have not been investigated. This paper presents the results of a choice-based conjoint survey which would help stakeholders to understand the niche Muslim immigrant halal meat market and potentially increase meat consumption. Post-hoc market segmentation was performed using latent class analysis, and factors affecting consumers’ purchase intentions were studied within each segment. Results show that purchasing halal meat from a butcher was the top preference while there was a higher willingness to purchase from national supermarkets among younger second-generation Pakistanis. In order to benefit from niche halal meat market, Norwegian supermarkets are recommended to adapt some of the services that halal butchers are offering to their consumers.
{"title":"An exploratory study of Muslim consumers’ halal meat purchasing intentions in Norway","authors":"M. Bhatti, S. Godfrey, Ryan H. L. Ip, M. Gaarder, Shakar Aslam, G. Steinheim, P. Wynn, D. Hopkins, Reinert Horneland, L. Eik, T. Ådnøy","doi":"10.1080/09064702.2020.1842488","DOIUrl":"https://doi.org/10.1080/09064702.2020.1842488","url":null,"abstract":"ABSTRACT Although Norway is the largest sheep meat producer in Scandinavia and Norwegian Muslims are expected to double in population in the next decade, the overall local per capita red meat consumption is still low. Meanwhile, Norwegian Muslims’ purchasing preferences on lamb meat products have not been investigated. This paper presents the results of a choice-based conjoint survey which would help stakeholders to understand the niche Muslim immigrant halal meat market and potentially increase meat consumption. Post-hoc market segmentation was performed using latent class analysis, and factors affecting consumers’ purchase intentions were studied within each segment. Results show that purchasing halal meat from a butcher was the top preference while there was a higher willingness to purchase from national supermarkets among younger second-generation Pakistanis. In order to benefit from niche halal meat market, Norwegian supermarkets are recommended to adapt some of the services that halal butchers are offering to their consumers.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"34 1","pages":"61 - 70"},"PeriodicalIF":0.9,"publicationDate":"2020-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84335086","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}
Pub Date : 2020-10-12DOI: 10.1080/09064702.2020.1829697
K. Nagy, H. Fébel, V. Halas, T. Tóth
ABSTRACT The use of by-products containing high fibre and protein has increased in pig feeding due to the need of the increase of the plant protein self-sufficiency of the EU. The aim of this experiment was to evaluate the effect of increasing by-products inclusion on growth performance and feed efficiency in growing-finishing pigs in the course of using a relatively high dietary NDF level in two-phase feeding system. Individually housed hybrid (DanBred) pigs (n = 60; 41 kg initial BW) were used in the trial. Control (CTR) feed was formulated without by-products, moderate (MLB) with 15% and 20% and high level of by-products feed (HLB) with 27% and 33% by-products, in phase 1 and 2, respectively. Experimental feeds were isocaloric on net energy (NE) basis. Pigs gained over 1000 g/d in all experimental groups for the whole trial and no significant (P > 0.05) treatment effect, sex and diet × sex interactions were observed.
{"title":"The effect of inclusion of fibre-rich by-products on the performance of growing and finishing pigs (pilot study)","authors":"K. Nagy, H. Fébel, V. Halas, T. Tóth","doi":"10.1080/09064702.2020.1829697","DOIUrl":"https://doi.org/10.1080/09064702.2020.1829697","url":null,"abstract":"ABSTRACT The use of by-products containing high fibre and protein has increased in pig feeding due to the need of the increase of the plant protein self-sufficiency of the EU. The aim of this experiment was to evaluate the effect of increasing by-products inclusion on growth performance and feed efficiency in growing-finishing pigs in the course of using a relatively high dietary NDF level in two-phase feeding system. Individually housed hybrid (DanBred) pigs (n = 60; 41 kg initial BW) were used in the trial. Control (CTR) feed was formulated without by-products, moderate (MLB) with 15% and 20% and high level of by-products feed (HLB) with 27% and 33% by-products, in phase 1 and 2, respectively. Experimental feeds were isocaloric on net energy (NE) basis. Pigs gained over 1000 g/d in all experimental groups for the whole trial and no significant (P > 0.05) treatment effect, sex and diet × sex interactions were observed.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"56 1","pages":"23 - 30"},"PeriodicalIF":0.9,"publicationDate":"2020-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77274781","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}
Pub Date : 2020-10-01DOI: 10.1080/09064702.2020.1825785
B. Yougbaré, A. Soudré, D. Ouédraogo, B. L. Zoma, A. Tapsoba, M. Sanou, S. Ouédraogo-Koné, P. Burger, M. Wurzinger, N. Khayatzadeh, H. Tamboura, A. Traore, J. Sölkner, G. Mészáros
ABSTRACT A morphometric characterization study was conducted using purebred Baoulé cattle and two crossbreds’ populations in the southwestern region of Burkina-Faso. A total of 421 cattle, including 266 crossbreds from the department of Kampti and Loropeni and 155 purebred Baoulé, from the department of Bouroum-Bouroum were measured for quantitative and qualitative traits. The quantitative traits were analyzed by fitting the linear model including genotype-location, sex, age and all two-way interactions. The chi square test was performed for qualitative traits. The results provide evidence for difference between purebred and crossbred populations, and among crossbreds for all traits. The genotype-location effect showed that facial length, distance between horn tips, ear length and chest width differed between purebred and crossbred populations. For qualitative traits, coat color and horn shape showed large variation between Baoulé and crossbreds. These results will serve as basis for further characterization, conservation and improvement strategies for purebred and crossbred populations.
{"title":"Morphometric characterization of purebred and crossbred Baoulé cattle in Burkina Faso","authors":"B. Yougbaré, A. Soudré, D. Ouédraogo, B. L. Zoma, A. Tapsoba, M. Sanou, S. Ouédraogo-Koné, P. Burger, M. Wurzinger, N. Khayatzadeh, H. Tamboura, A. Traore, J. Sölkner, G. Mészáros","doi":"10.1080/09064702.2020.1825785","DOIUrl":"https://doi.org/10.1080/09064702.2020.1825785","url":null,"abstract":"ABSTRACT A morphometric characterization study was conducted using purebred Baoulé cattle and two crossbreds’ populations in the southwestern region of Burkina-Faso. A total of 421 cattle, including 266 crossbreds from the department of Kampti and Loropeni and 155 purebred Baoulé, from the department of Bouroum-Bouroum were measured for quantitative and qualitative traits. The quantitative traits were analyzed by fitting the linear model including genotype-location, sex, age and all two-way interactions. The chi square test was performed for qualitative traits. The results provide evidence for difference between purebred and crossbred populations, and among crossbreds for all traits. The genotype-location effect showed that facial length, distance between horn tips, ear length and chest width differed between purebred and crossbred populations. For qualitative traits, coat color and horn shape showed large variation between Baoulé and crossbreds. These results will serve as basis for further characterization, conservation and improvement strategies for purebred and crossbred populations.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"24 1","pages":"193 - 202"},"PeriodicalIF":0.9,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73855139","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}
Pub Date : 2020-09-13DOI: 10.1080/09064702.2020.1817538
J. K. Sommerseth, G. Klemetsdal, B. G. Hansen, R. Salte
ABSTRACT This study combined exploratory factor analysis (EFA) and Lasso regression to give a deeper insight into production-economic variables affecting short-run dairy cow lifetime profit, DCLP, at the farm level. The study rests on data on heifer growth, feeding, financial, and production variables from 13 farms. We calculated costs and income for an average animal per month and herd. Costs and income were discounted and summarized to a DCLP at time of birth, converted to profit as a monthly annuity equivalent value, MEQ. MEQ was regressed on the 53 original variables (Lasso) or on factor scores (EFA) derived from the original variables. Both EFA and Lasso regressions were used to deal with co-linearity problems. The EFA provides a higher resolution of the underlying quantities than Lasso regression. The factors improving DCLP were reduced roughage costs and high milk yield combined with the lowest possible age at first calving in the data.
{"title":"Variables affecting herd average lifetime short-run profit in a sample of Norwegian dairy herds","authors":"J. K. Sommerseth, G. Klemetsdal, B. G. Hansen, R. Salte","doi":"10.1080/09064702.2020.1817538","DOIUrl":"https://doi.org/10.1080/09064702.2020.1817538","url":null,"abstract":"ABSTRACT This study combined exploratory factor analysis (EFA) and Lasso regression to give a deeper insight into production-economic variables affecting short-run dairy cow lifetime profit, DCLP, at the farm level. The study rests on data on heifer growth, feeding, financial, and production variables from 13 farms. We calculated costs and income for an average animal per month and herd. Costs and income were discounted and summarized to a DCLP at time of birth, converted to profit as a monthly annuity equivalent value, MEQ. MEQ was regressed on the 53 original variables (Lasso) or on factor scores (EFA) derived from the original variables. Both EFA and Lasso regressions were used to deal with co-linearity problems. The EFA provides a higher resolution of the underlying quantities than Lasso regression. The factors improving DCLP were reduced roughage costs and high milk yield combined with the lowest possible age at first calving in the data.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"22 1","pages":"50 - 60"},"PeriodicalIF":0.9,"publicationDate":"2020-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87683290","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}
Pub Date : 2020-08-27DOI: 10.1080/09064702.2020.1806349
S. Samsonstuen, B. A. Åby, P. Crosson, K. Beauchemin, L. Aass
ABSTRACT The whole-farm model HolosNorBeef was used to estimate the efficiency of GHG emission mitigation strategies in Norwegian beef cattle herds. Various mitigation scenarios, involving female reproductive performance (i.e. calf mortality rate and the number of calves produced per cow per year), production efficiency of young bulls for slaughter (i.e. age at slaughter and carcass weight), and supplementation of an inhibitor currently reported as promising for enteric methane (CH4) inhibition (3-nitrooxypropanol; 3-NOP) was investigated in herds of British and Continental breeds. Reducing calf mortality and increasing the number of produced calves per cow per year both reduced emission intensities by 3% across breeds. Continental breeds showed greater potential of reducing emission intensities due to increased carcass production. Combining mitigation options in a best case scenario reduced the total emissions by 11.7% across breeds. The emission intensities could be further reduced by 8.3% with the use of 3-NOP.
{"title":"Mitigation of greenhouse gas emissions from beef cattle production systems","authors":"S. Samsonstuen, B. A. Åby, P. Crosson, K. Beauchemin, L. Aass","doi":"10.1080/09064702.2020.1806349","DOIUrl":"https://doi.org/10.1080/09064702.2020.1806349","url":null,"abstract":"ABSTRACT The whole-farm model HolosNorBeef was used to estimate the efficiency of GHG emission mitigation strategies in Norwegian beef cattle herds. Various mitigation scenarios, involving female reproductive performance (i.e. calf mortality rate and the number of calves produced per cow per year), production efficiency of young bulls for slaughter (i.e. age at slaughter and carcass weight), and supplementation of an inhibitor currently reported as promising for enteric methane (CH4) inhibition (3-nitrooxypropanol; 3-NOP) was investigated in herds of British and Continental breeds. Reducing calf mortality and increasing the number of produced calves per cow per year both reduced emission intensities by 3% across breeds. Continental breeds showed greater potential of reducing emission intensities due to increased carcass production. Combining mitigation options in a best case scenario reduced the total emissions by 11.7% across breeds. The emission intensities could be further reduced by 8.3% with the use of 3-NOP.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"40 1","pages":"220 - 232"},"PeriodicalIF":0.9,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79886695","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}
Pub Date : 2020-08-26DOI: 10.1080/09064702.2020.1807594
H. Supratman, M. R. Ismiraj, N. Mayasari
ABSTRACT This study investigated the effect of commercial probiotic supplementation in diet on apparent digestibility of forage fibre fractions, namely acid detergent fibre (ADF), neutral detergent fibre (NDF), cellulose, and hemicellulose in Indonesian thin-tailed rams. Twenty Indonesian local rams (22 ± 0.7 kg of live weight) were randomly assigned to four dietary treatments. The treatments were the percentage of probiotic supplementation on basal diet: PP0 (control/basal diet with no probiotic supplementation); PP025 (basal diet with 0.25% probiotic); PP050 (basal diet with 0.50% probiotic); PP075 (basal diet with 0.75% probiotic). The calculated amount of probiotic is then mixed to the basal diet prior to supplying to the animals. Rams fed diet with 0.50% and 0.75% probiotic supplementation had higher ADF, NDF, and cellulose digestibility compared with other treatments. In conclusion, the supplementation 0.50% probiotic in the diet is beneficial to enhance forage fibre digestibility in rams without giving any negative effect on performance.
{"title":"Effects of probiotic supplementation to diets on apparent fibre digestibility in Indonesian thin-tailed rams","authors":"H. Supratman, M. R. Ismiraj, N. Mayasari","doi":"10.1080/09064702.2020.1807594","DOIUrl":"https://doi.org/10.1080/09064702.2020.1807594","url":null,"abstract":"ABSTRACT This study investigated the effect of commercial probiotic supplementation in diet on apparent digestibility of forage fibre fractions, namely acid detergent fibre (ADF), neutral detergent fibre (NDF), cellulose, and hemicellulose in Indonesian thin-tailed rams. Twenty Indonesian local rams (22 ± 0.7 kg of live weight) were randomly assigned to four dietary treatments. The treatments were the percentage of probiotic supplementation on basal diet: PP0 (control/basal diet with no probiotic supplementation); PP025 (basal diet with 0.25% probiotic); PP050 (basal diet with 0.50% probiotic); PP075 (basal diet with 0.75% probiotic). The calculated amount of probiotic is then mixed to the basal diet prior to supplying to the animals. Rams fed diet with 0.50% and 0.75% probiotic supplementation had higher ADF, NDF, and cellulose digestibility compared with other treatments. In conclusion, the supplementation 0.50% probiotic in the diet is beneficial to enhance forage fibre digestibility in rams without giving any negative effect on performance.","PeriodicalId":35885,"journal":{"name":"Acta Agriculturae Scandinavica Section A-Animal Science","volume":"48 1","pages":"233 - 238"},"PeriodicalIF":0.9,"publicationDate":"2020-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80164665","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}
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