Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-549
Claire E. Andresen, P. Gunn
This study evaluated the effects of extended-release eprinomectin on performance parameters and reproductive efficiency of fall-calving cows. Cows were treated with either a conventional, short duration dewormer (CONV) or an injectable extended-release eprinomectin (EPR). Change in body weight (BW) and average daily gain were greater in EPR cows compared to CONV treated cows. Pregnancy rates tended to be greater for EPR than CONV cows. Calves from dams treated with EPR were younger at weaning, but had greater weaning weights than calves from CONV dams. Results from this study indicate performance and reproductive advantages for dams treated with EPR as well as possible indirect performance advantages for calves whose dams were treated with EPR.
{"title":"Effects of Extended-release Eprinomectin on Cow/calf Performance and Reproductive Success in a Fall-calving Herd","authors":"Claire E. Andresen, P. Gunn","doi":"10.31274/ANS_AIR-180814-549","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-549","url":null,"abstract":"This study evaluated the effects of extended-release eprinomectin on performance parameters and reproductive efficiency of fall-calving cows. Cows were treated with either a conventional, short duration dewormer (CONV) or an injectable extended-release eprinomectin (EPR). Change in body weight (BW) and average daily gain were greater in EPR cows compared to CONV treated cows. Pregnancy rates tended to be greater for EPR than CONV cows. Calves from dams treated with EPR were younger at weaning, but had greater weaning weights than calves from CONV dams. Results from this study indicate performance and reproductive advantages for dams treated with EPR as well as possible indirect performance advantages for calves whose dams were treated with EPR.","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"12 1","pages":"8"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82434757","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}
Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-409
M. Saatchi, R. Fernando
Recommended Citation Saatchi, Mahdi; Fernando, Rohan L.; Hyde, Lauren; Atkins, Jackie; McGuire, Steve; Shafer, Wade; Spangler, Matt L.; and Golden, Bruce (2018) "Empirical Progeny Equivalent of Genotyped Animals in a Multi-breed Beef Cattle Genetic Evaluation Using a Single-step Bayesian Regression Model," Animal Industry Report: AS 664, ASL R3227. DOI: https://doi.org/10.31274/ans_air-180814-409 Available at: https://lib.dr.iastate.edu/ans_air/vol664/iss1/25
萨奇，马赫迪;费尔南多，罗汉L.;海德,劳伦;阿特金斯,成龙;McGuire,史蒂夫;沙佛,韦德;马特·l·斯潘格勒;《布鲁斯·戈尔登》(2018)“使用单步贝叶斯回归模型在多品种肉牛遗传评估中基因型动物的经验后代等效”，动物产业报告:AS 664, ASL R3227。DOI: https://doi.org/10.31274/ans_air-180814-409可在:https://lib.dr.iastate.edu/ans_air/vol664/iss1/25
{"title":"Empirical Progeny Equivalent for Genotyped Animals in Multi-breed Beef Cattle Genetic Evaluations Using Single-step Bayesian Regression Model","authors":"M. Saatchi, R. Fernando","doi":"10.31274/ANS_AIR-180814-409","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-409","url":null,"abstract":"Recommended Citation Saatchi, Mahdi; Fernando, Rohan L.; Hyde, Lauren; Atkins, Jackie; McGuire, Steve; Shafer, Wade; Spangler, Matt L.; and Golden, Bruce (2018) \"Empirical Progeny Equivalent of Genotyped Animals in a Multi-breed Beef Cattle Genetic Evaluation Using a Single-step Bayesian Regression Model,\" Animal Industry Report: AS 664, ASL R3227. DOI: https://doi.org/10.31274/ans_air-180814-409 Available at: https://lib.dr.iastate.edu/ans_air/vol664/iss1/25","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"62 1","pages":"21"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88871938","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}
Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-288
M. Al-Hijazeen, D. Ahn, A. Mendonca
A study was conducted to investigate the effect of oregano essential oil on the oxidative stability and color of raw and cooked chicken breast meat. Five treatments, including 1) control (none added), 2) 100 ppm oregano essential oil, 3) 300 ppm oregano essential oil, 4) 400 ppm oregano essential oil, and 5) 5 ppm butylated hydroxyanisole (BHA), were prepared with ground boneless, skinless chicken breast meat and used for both raw and cooked meat studies. For the raw meat study, samples were individually packaged in oxygen-permeable bags and stored in a cold room (4 ℃) for 7 days. For the cooked meat study, the raw meat samples were vacuum-packaged in oxygen-impermeable vacuum bags and then cooked in-bag to an internal temperature of 75 °C. After cooling to room temperature, the cooked meats were repackaged in new oxygen-permeable bags and then stored at 4 oC for 7 days. Both raw and cooked meats were analyzed for lipid and protein oxidation, volatiles, and color at 0, 3, and 7 days of storage. Oregano essential oil significantly reduced (p < 0.05) lipid and protein oxidation, and improved color stability of raw and cooked meat. However, oregano oil at 400 ppm showed the strongest effect for all these parameters. Hexanal was the major aldehyde detected, which was decreased significantly (P < 0.05) by oregano oil treatment, in cooked meat. Overall, oregano essential oil at 100-400 ppm levels could be a potential replacement for the synthetic antioxidants in chicken meat.
{"title":"Effect of Oregano Essential Oil on the Storage Stability and Quality Parameters of Ground Chicken Breast Meat","authors":"M. Al-Hijazeen, D. Ahn, A. Mendonca","doi":"10.31274/ANS_AIR-180814-288","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-288","url":null,"abstract":"A study was conducted to investigate the effect of oregano essential oil on the oxidative stability and color of raw and cooked chicken breast meat. Five treatments, including 1) control (none added), 2) 100 ppm oregano essential oil, 3) 300 ppm oregano essential oil, 4) 400 ppm oregano essential oil, and 5) 5 ppm butylated hydroxyanisole (BHA), were prepared with ground boneless, skinless chicken breast meat and used for both raw and cooked meat studies. For the raw meat study, samples were individually packaged in oxygen-permeable bags and stored in a cold room (4 ℃) for 7 days. For the cooked meat study, the raw meat samples were vacuum-packaged in oxygen-impermeable vacuum bags and then cooked in-bag to an internal temperature of 75 °C. After cooling to room temperature, the cooked meats were repackaged in new oxygen-permeable bags and then stored at 4 oC for 7 days. Both raw and cooked meats were analyzed for lipid and protein oxidation, volatiles, and color at 0, 3, and 7 days of storage. Oregano essential oil significantly reduced (p < 0.05) lipid and protein oxidation, and improved color stability of raw and cooked meat. However, oregano oil at 400 ppm showed the strongest effect for all these parameters. Hexanal was the major aldehyde detected, which was decreased significantly (P < 0.05) by oregano oil treatment, in cooked meat. Overall, oregano essential oil at 100-400 ppm levels could be a potential replacement for the synthetic antioxidants in chicken meat.","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"148 1","pages":"7"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89036196","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}
Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-456
R. Euken
Corn Silage and earlage are two common feeds for beef cattle. Both of these feeds can increase beef production per acre as compared to corn grain but require good management from production through feeding to optimize beef production. Little information has been collected about production practices that are being used in Iowa and if there is any correlation to the feeding value of the feeds.
{"title":"A Survey of Corn Silage and Earlage Characteristics Production and Use in Iowa","authors":"R. Euken","doi":"10.31274/ANS_AIR-180814-456","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-456","url":null,"abstract":"Corn Silage and earlage are two common feeds for beef cattle. Both of these feeds can increase beef production per acre as compared to corn grain but require good management from production through feeding to optimize beef production. Little information has been collected about production practices that are being used in Iowa and if there is any correlation to the feeding value of the feeds.","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"56 1","pages":"17"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74093078","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}
Pub Date : 2018-01-01DOI: 10.31274/ans_air-180814-372
J. Wickramasinghe, R. Appuhamy
{"title":"Effects of Age of Dairy Calves First Offered Free Drinking Water on Feed Intake, Growth, and Health","authors":"J. Wickramasinghe, R. Appuhamy","doi":"10.31274/ans_air-180814-372","DOIUrl":"https://doi.org/10.31274/ans_air-180814-372","url":null,"abstract":"","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"44 4 1","pages":"31"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74589966","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}
Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-333
E. Mauch, B. Servin, H. Gilbert, J. Dekkers
{"title":"Signatures of Selection in Two Independent Populations of Pigs Divergently Selected for Feed Efficiency","authors":"E. Mauch, B. Servin, H. Gilbert, J. Dekkers","doi":"10.31274/ANS_AIR-180814-333","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-333","url":null,"abstract":"","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"30 1","pages":"72"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75581614","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}
Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-387
F. M. Hall, Larry F. Tranel
Agricultural lenders in the six Northwest Iowa counties serve over 100 dairymen, representing production from over 57,000 cows. Add to that Siouxland producers in the surrounding states and the numbers double. A review of programing for dairy lenders in Siouxland found that little programing had been directed to dairy lenders specifically in recent years. With the stresses of low milk prices, variable feed prices and high land prices, lenders were often using dated budgets and formulas to evaluate profitability of dairy enterprises. A Dairy Lenders Seminar for the Siouxland area was developed based on the Tri- State Lenders Conference (IA, IL, WI) as a template, conducted and evaluated in November 2017. 41 lenders came from four states, representing 14 lending institutions plus four other industries. From those that returned program evaluations their attendance translated to 65 dairies, 69,725 milking cows and 97,400 acres producing feed for those cows. Overall, 88 percent of respondents were mostly, or completely satisfied with the activity and 100 percent would recommend the activity to others. In addition, 65 percent anticipated benefiting economically as a direct result of what they learned from this Extension activity. When asked about the presenters, 100 percent were mostly or completely satisfied with their knowledge and responses to questions. Over 73 percent of the lenders indicated that one or more of their clients planned on expanding their herds; Fourteen percent predicted at least one of their clients would exit the industry; and 17 percent believed that one or more of their clients would add robotic milkers to their operations. We evaluated increase in the level of understanding and found that the highest change was in the understanding comparing profitability of conventional, organic and grazing dairies at 88 percent. Next, was dairy component markets and how it affects farm-gate prices plus the information on analyzing enterprises for profitability, both at 55 percent. Finally, plans to adopt a practice or technology as the result of a program is the truest measure of success for Extension programs, with 100 percent of respondents indicating the commodity market updates would be most likely. Overall, this initial Siouxland Dairy lenders Seminar was highly successful and will be held annually in the future.
爱荷华州西北部六个县的农业贷款机构为100多名奶牛场场主提供服务，代表着57,000多头奶牛的产量。再加上周边各州的苏州生产商，这个数字翻了一番。对苏克兰乳制品贷款机构规划的审查发现，近年来专门针对乳制品贷款机构的规划很少。在低牛奶价格、多变的饲料价格和高土地价格的压力下，贷款机构经常使用过时的预算和公式来评估乳制品企业的盈利能力。2017年11月，Siouxland地区以三州贷款机构会议(IA, IL, WI)为模板举办了乳品贷款机构研讨会，并进行了评估。41家贷款机构来自4个州，代表14家贷款机构和4个其他行业。从那些返回项目评估的人那里，他们的参与转化为65个奶牛场，69,725头奶牛和97400英亩的土地为这些奶牛生产饲料。总体而言，88%的受访者对该活动非常满意或完全满意，100%的受访者会向他人推荐该活动。此外，65%的受访者预计，他们从这项推广活动中学到的知识将直接带来经济效益。当被问及演讲者时，100%的人对他们的知识和对问题的回答基本或完全满意。超过73%的贷款人表示，他们的一个或多个客户计划扩大他们的畜群;14%的人预测，他们的客户中至少有一个会退出这个行业;17%的人认为，他们的一个或多个客户会在他们的业务中添加机器人挤奶机。我们评估了理解水平的提高，发现最大的变化是对传统、有机和放牧奶牛场的盈利能力的理解，分别为88%。其次是乳制品成分市场及其对农场价格的影响，以及分析企业盈利能力的信息，两者都占55%。最后，计划采用一种实践或技术作为一个项目的结果是推广项目成功的最真实的衡量标准，100%的受访者表示商品市场更新是最有可能的。总的来说，最初的Siouxland乳业贷款人研讨会非常成功，未来将每年举行一次。
{"title":"Siouxland Dairy Lenders Seminar Focus OnDairy Enterprise Issues","authors":"F. M. Hall, Larry F. Tranel","doi":"10.31274/ANS_AIR-180814-387","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-387","url":null,"abstract":"Agricultural lenders in the six Northwest Iowa counties serve over 100 dairymen, representing production from over 57,000 cows. Add to that Siouxland producers in the surrounding states and the numbers double. A review of programing for dairy lenders in Siouxland found that little programing had been directed to dairy lenders specifically in recent years. With the stresses of low milk prices, variable feed prices and high land prices, lenders were often using dated budgets and formulas to evaluate profitability of dairy enterprises. A Dairy Lenders Seminar for the Siouxland area was developed based on the Tri- State Lenders Conference (IA, IL, WI) as a template, conducted and evaluated in November 2017. 41 lenders came from four states, representing 14 lending institutions plus four other industries. From those that returned program evaluations their attendance translated to 65 dairies, 69,725 milking cows and 97,400 acres producing feed for those cows. Overall, 88 percent of respondents were mostly, or completely satisfied with the activity and 100 percent would recommend the activity to others. In addition, 65 percent anticipated benefiting economically as a direct result of what they learned from this Extension activity. When asked about the presenters, 100 percent were mostly or completely satisfied with their knowledge and responses to questions. Over 73 percent of the lenders indicated that one or more of their clients planned on expanding their herds; Fourteen percent predicted at least one of their clients would exit the industry; and 17 percent believed that one or more of their clients would add robotic milkers to their operations. We evaluated increase in the level of understanding and found that the highest change was in the understanding comparing profitability of conventional, organic and grazing dairies at 88 percent. Next, was dairy component markets and how it affects farm-gate prices plus the information on analyzing enterprises for profitability, both at 55 percent. Finally, plans to adopt a practice or technology as the result of a program is the truest measure of success for Extension programs, with 100 percent of respondents indicating the commodity market updates would be most likely. Overall, this initial Siouxland Dairy lenders Seminar was highly successful and will be held annually in the future.","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"62 1","pages":"44"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84274229","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}
Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-390
L. Chai, H. Xin, Yang Zhao, Tong Wang, M. Soupir
Spraying water or electrolyzed water (EW) has been tested to reduce animal house dust level. In this study, lab-scale experiment was conducted to mitigate particulate matter (PM) emissions of litter from aviary cage-free hen houses by spraying EW. The results showed that higher spray dosage led to greater PM reduction (PM reduction of 71%, 81% and 89% immediately after EW spray at 25, 50, 75 mL per kg dry-basis litter or 3, 6, and 9 gal per 1000 ft2 at 0.4 inch (1 cm) litter depth, respectively) but higher ammonia (NH3) emissions. To address this issue, solid litter additive (PLT®) at three application rates (i.e., 60.8, 121.6, and 182.4 lb per 1000 ft2) along with spray of EW was tested for NH3 mitigation. The lab-scale study results showed that the three litter additive application rates reduced NH3 generation by 28–79%. This study provides the foundation for conducting subsequent field test to verify the efficacy of this promising mitigation technique (EW spray and PLT use) to improve the indoor air quality of CF hen houses.
{"title":"Air Emissions Mitigation from Aviary Cage-free Hen Litter","authors":"L. Chai, H. Xin, Yang Zhao, Tong Wang, M. Soupir","doi":"10.31274/ANS_AIR-180814-390","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-390","url":null,"abstract":"Spraying water or electrolyzed water (EW) has been tested to reduce animal house dust level. In this study, lab-scale experiment was conducted to mitigate particulate matter (PM) emissions of litter from aviary cage-free hen houses by spraying EW. The results showed that higher spray dosage led to greater PM reduction (PM reduction of 71%, 81% and 89% immediately after EW spray at 25, 50, 75 mL per kg dry-basis litter or 3, 6, and 9 gal per 1000 ft2 at 0.4 inch (1 cm) litter depth, respectively) but higher ammonia (NH3) emissions. To address this issue, solid litter additive (PLT®) at three application rates (i.e., 60.8, 121.6, and 182.4 lb per 1000 ft2) along with spray of EW was tested for NH3 mitigation. The lab-scale study results showed that the three litter additive application rates reduced NH3 generation by 28–79%. This study provides the foundation for conducting subsequent field test to verify the efficacy of this promising mitigation technique (EW spray and PLT use) to improve the indoor air quality of CF hen houses.","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"17 1","pages":"48"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78042758","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}
Pub Date : 2018-01-01DOI: 10.31274/ANS_AIR-180814-323
C. Supakorn, C. Lents, J. Stock, J. Vallet, T. J. Prince, Christine E. Phllips, R. Boyd, A. DeDecker, K. Stalder
An experiment was conducted to determine the optimum dietary lysine concentration for optimum growth rate of replacement gilts during the growing-finishing period. A total of 2,960 gilts (Large White x Landrace), 42.3±7.0 kg average BW were allotted to randomized completely block design (RCBD). Three grower and finisher diets were formulated to contain low lysine (0.68 and 0.52% standard ileal digestible (SID) lysine), medium lysine (0.79 and 0.60% SID lysine), and high lysine (0.90 and 0.68 % SID lysine) at data recording day (142, 160 and 200 d of age). Covariate of body weight at 100 days was included in the models and it had significant influence on growth traits (P < 0.05). Gilts fed the high lysine treatment had increased body weight (BW), flank-to-flank, backfat thickness, loin depth, fat-free-lean, and average daily gain (ADG) (P < 0.05) when compared to gilts fed the medium and low lysine treatments. The results indicated that gilts require higher dietary lysine concentrations to maximize growth rate and high lysine diet may useful to impact growth traits when fed to developing gilt from 142 to 200 kg BW.
本试验旨在确定替代后备母猪生长-肥育期最佳生长速率所需的最佳饲粮赖氨酸浓度。选取2960头平均体重为42.3±7.0 kg的大白×长白后备母猪，采用完全随机区组设计(RCBD)。在数据记录日龄(142、160和200日龄)配制低赖氨酸(0.68和0.52%标准回肠可消化赖氨酸)、中赖氨酸(0.79和0.60%标准回肠可消化赖氨酸)和高赖氨酸(0.90和0.68%标准回肠可消化赖氨酸)3种生长和育肥猪饲粮。模型中纳入了100日龄体重的协变量，其对生长性状有显著影响(P < 0.05)。与中、低赖氨酸处理相比，高赖氨酸处理仔猪体重(BW)、侧腹比、背膘厚、腰深、无脂瘦肉和平均日增重(ADG)显著增加(P < 0.05)。综上所述，在142 ~ 200 kg BW的发育阶段，后备母猪需要较高的赖氨酸水平以达到最大的生长速率，高赖氨酸饲粮可能对后备母猪的生长性状有影响。
{"title":"Effect of Ad libitum Feeding of Gilt Developer Diets Differing in Standard Ileal Digestive Lysine Concentrations on Growth Traits","authors":"C. Supakorn, C. Lents, J. Stock, J. Vallet, T. J. Prince, Christine E. Phllips, R. Boyd, A. DeDecker, K. Stalder","doi":"10.31274/ANS_AIR-180814-323","DOIUrl":"https://doi.org/10.31274/ANS_AIR-180814-323","url":null,"abstract":"An experiment was conducted to determine the optimum dietary lysine concentration for optimum growth rate of replacement gilts during the growing-finishing period. A total of 2,960 gilts (Large White x Landrace), 42.3±7.0 kg average BW were allotted to randomized completely block design (RCBD). Three grower and finisher diets were formulated to contain low lysine (0.68 and 0.52% standard ileal digestible (SID) lysine), medium lysine (0.79 and 0.60% SID lysine), and high lysine (0.90 and 0.68 % SID lysine) at data recording day (142, 160 and 200 d of age). Covariate of body weight at 100 days was included in the models and it had significant influence on growth traits (P < 0.05). Gilts fed the high lysine treatment had increased body weight (BW), flank-to-flank, backfat thickness, loin depth, fat-free-lean, and average daily gain (ADG) (P < 0.05) when compared to gilts fed the medium and low lysine treatments. The results indicated that gilts require higher dietary lysine concentrations to maximize growth rate and high lysine diet may useful to impact growth traits when fed to developing gilt from 142 to 200 kg BW.","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"121 1","pages":"74"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91048573","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}
Pub Date : 2018-01-01DOI: 10.31274/ans_air-180814-395
D. Bickett-Weddle
Introduction The Secure Milk Supply (SMS) Plan provides a workable continuity of business (COB) plan for dairy premises with no evidence of foot and mouth disease (FMD) infection in a regulatory Control Area to move raw milk to processing that is credible to Responsible Regulatory Officials (local, state, tribal, and federal officials, as appropriate). Officials must balance the risks of allowing movement of raw milk against the risk of not allowing movement and thus the necessity for on farm disposal of raw milk. FMD is a highly contagious foreign animal disease that infects cattle and other cloven-hooved livestock, such as swine, sheep, goats, and deer. FMD is not a public health or food safety concern. FMD has been eradicated from the U.S. since 1929 but it is present in many other countries and causes severe production losses in animals.
{"title":"Secure Milk Supply (SMS) Plan for Continuity of Business","authors":"D. Bickett-Weddle","doi":"10.31274/ans_air-180814-395","DOIUrl":"https://doi.org/10.31274/ans_air-180814-395","url":null,"abstract":"Introduction The Secure Milk Supply (SMS) Plan provides a workable continuity of business (COB) plan for dairy premises with no evidence of foot and mouth disease (FMD) infection in a regulatory Control Area to move raw milk to processing that is credible to Responsible Regulatory Officials (local, state, tribal, and federal officials, as appropriate). Officials must balance the risks of allowing movement of raw milk against the risk of not allowing movement and thus the necessity for on farm disposal of raw milk. FMD is a highly contagious foreign animal disease that infects cattle and other cloven-hooved livestock, such as swine, sheep, goats, and deer. FMD is not a public health or food safety concern. FMD has been eradicated from the U.S. since 1929 but it is present in many other countries and causes severe production losses in animals.","PeriodicalId":7812,"journal":{"name":"Animal Industry Report","volume":"6 1","pages":"34"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78504662","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}
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