Hessel, Engel F.

[["dc.bibliographiccitation.firstpage","630"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Journal of Equine Veterinary Science"],["dc.bibliographiccitation.lastpage","639"],["dc.bibliographiccitation.volume","31"],["dc.contributor.author","Garlipp, Felix"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T08:50:11Z"],["dc.date.available","2018-11-07T08:50:11Z"],["dc.date.issued","2011"],["dc.description.abstract","This study was designed to analyze the reduction potential of three different liquid additives (water, rapeseed oil, and molasses) in three different concentrations mixed with cleaned whole or rolled oats on the generation of airborne particles under standardized laboratory conditions. In addition, the influence of two different drop heights (20 and 40 cm) was analyzed. Airborne particle concentrations were detected online with the gravimetrically measuring analyzer TEOM 1400a that was equipped successively with different inlets to measure the particle fractions PM(20), PM(10), and PM(2.5). The mixing of oats with just 1% (w/w) of each of the liquid additives led to a significant reduction in airborne particle generation in all three particle fractions with respect to the samples without additives (P < .0001). By the addition of 1% oil, a reduction in the PM(20) fraction of 90.6% (120.3 mu g/m(3)) could be achieved. The same dosage of water or molasses only resulted in a reduction of 60.4% (504.6 mu g/m(3)) or 69.1% (393.2 mu g/m(3)), respectively. In general, the highest significant reduction in the PM(20) fraction was achieved using 3% rapeseed oil: 96.5% as compared with 75.6% for 3% water and 81.9% for 3% molasses. The drop height only had a significant effect on the generation of the PM(10) fraction, with it being lower at 20 cm than at 40 cm (P = .0261). (C) 2011 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.jevs.2011.05.010"],["dc.identifier.isi","000297238400005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21639"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0737-0806"],["dc.title","Effects of Three Different Liquid Additives Mixed with Whole Oats or Rolled Oats on the Generation of Airborne Particles from an Experimental Simulating Horse Feeding"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","383"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Journal of Equine Veterinary Science"],["dc.bibliographiccitation.lastpage","395"],["dc.bibliographiccitation.volume","31"],["dc.contributor.author","Garlipp, Felix"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T08:54:34Z"],["dc.date.available","2018-11-07T08:54:34Z"],["dc.date.issued","2011"],["dc.description.abstract","The aim of this study was to analyze the influence of horse manure added to different bedding materials on the generation of gases (ammonia (NH3), nitrous oxide, carbon dioxide, methane, water vapor) from deep litter bedding under standardized laboratory conditions. Two different types of straw (wheat and rye) and wood shavings were analyzed. The deep litter (substrate) was made of 25 kg of the respective bedding material, 60 kg horse feces, and 60 L ammonium chloride solution (urea), and spread out in identical chambers over 19 days (n = 3). On days 1, 8, 15, and 19, total nitrogen, total carbon, and dry matter content of the substrate, as well as the pH in 500-g samples, were measured along with. At the end of each test period, the nitrite nitrogen, nitrate nitrogen, and ammonium nitrogen contents of the leachate were analyzed. The wheat straw substrate emitted the highest concentration of NH3 (4.31 mg/m(3); P < .0001) and the wood shavings substrate emitted the lowest (1.73 mg/m(3); P < .0001); the rye straw substrate generated 3.05 mg/m(3). In addition, significant differences occurred during days 1 to 3 with respect to the generation of the gases NH3, methane, nitrous oxide, carbon dioxide, and water vapor, and after the opening of the chamber on day 15. The nitrogen losses through the leachate occurred mainly in the form of nitrate, where the leachate from the wheat straw substrate had a significantly higher amount of nitrate nitrogen (44.56 mg) as compared with the leachates of the rye straw (14.49 mg; P <= .0001) and the wood shaving substrates (22.62 mg; P = .0010). (C) 2011 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.jevs.2011.01.007"],["dc.identifier.isi","000293311400006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22699"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0737-0806"],["dc.title","Characteristics of Gas Generation (NH3, CH4, N2O, CO2, H2O) From Horse Manure Added to Different Bedding Materials Used in Deep Litter Bedding Systems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","665"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Journal of Equine Veterinary Science"],["dc.bibliographiccitation.lastpage","674"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","Garlipp, Felix"],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T11:25:01Z"],["dc.date.available","2018-11-07T11:25:01Z"],["dc.date.issued","2009"],["dc.description.abstract","Among other factors (eg, bedding material, roughage), feed has an important effect on the airborne particle concentration in the stable air, in particular directly in the breathing zone of the horse during feeding. Therefore, this study was designed to analyze and compare the generation of different airborne particle fractions of diverse feed types and feed processing techniques under standarized laboratory conditions. Oats and barely as well as two commercially formulated ready-prepared pellets and two commercially formulated ready-prepared mixes were analyzed. Oats were subjected to four different forms of processing (whole uncleaned, whole cleaned, rolled uncleaned, rolled cleaned), barley was subjected to steam flaking in addition to the same forms of processing as oats. In total, 13 feeds were analyzed. Airborne particle concentrations were detected online with a gravimetrically measuring analyzer that was equipped successively with different inlets to measure the particle fractions PM 1, PM 2.5, PM 10, and PM 20. The measurements were carried out in a closed chamber (1 x 1 x 1.5 m) including a bowl (diameter = 0.5 m), which stimulated the trough. The sample inlet was situated at a height of 1.0 m above the bowl. Rolling oats and barley led to a significantly increased generation of the PM 20 fraction and a significantly decreased generation of the PM 2.5 fraction. The mechanical cleaning of oat and barley brings a clear decrease in dust generation from straights whether they are left whole or are rolled after cleaning. A consideratble reduction in dust generation can be achieved if steam-flaked barely or commercially prepared feeds are used."],["dc.identifier.doi","10.1016/j.jevs.2009.07.013"],["dc.identifier.isi","000270370800006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/56542"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0737-0806"],["dc.title","Generation of Airborne Particles from Horse Feeds Depending on Type and Processing"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","45"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Equine Veterinary Science"],["dc.bibliographiccitation.lastpage","52"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Werhahn, Hanna"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T09:16:07Z"],["dc.date.available","2018-11-07T09:16:07Z"],["dc.date.issued","2012"],["dc.description.abstract","Although welfare of animals has become more important, housing horses in systems that limit natural behavior patterns is still widespread. Single stalls are the predominant housing system in Germany, especially for competition horses. Free exercise on fields or paddocks helps to improve welfare for the animals, but allowing it is not taken for granted by many horse keepers. In the present study, three common management practices were investigated with regard to their effect on the behavior of six competition horses housed in single stalls: 2-hour turnout after training in groups of two horses (group turnout [GT]), solitary turnout (ST) after training for 2 hours, and no turnout (NT) in addition to training. The aim of the study was to determine the differences in the horses' behavior during turnout, training, and in the stable caused by the treatments. This article focuses on the behavior and activity patterns during turnout. The horses' behavior was observed directly by the scan sampling method (5-minute interval), and the distance covered during turnout was measured by global positioning system devices. During turnout, the horses spent most of the time eating. After 1 hour of being turned out, eating decreased, and occupation, locomotion, and social interaction increased. When turnout was allowed in groups (GT), the horses spent more time in social interactions and less time walking and trotting than in ST. Therefore, they also covered a greater distance in ST than in GT. The distance covered in ST also showed a greater deviation both within and between days compared with GT. (C) 2012 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.jevs.2011.06.007"],["dc.identifier.isi","000298936100008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27865"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0737-0806"],["dc.title","Competition Horses Housed in Single Stalls (I): Behavior and Activity Patterns during Free Exercise According to Its Configuration"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","22"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Journal of Equine Veterinary Science"],["dc.bibliographiccitation.lastpage","31"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Werhahn, Hanna"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T09:16:07Z"],["dc.date.available","2018-11-07T09:16:07Z"],["dc.date.issued","2012"],["dc.description.abstract","Although housing horses in single stalls limits their natural behavior to a great extent, this housing system is widespread in Germany, especially for competition horses. To improve the welfare of this system, free exercise on pastures or paddocks is deemed suitable, but it is also feared because of injuries and decreased willingness or motivation to perform. In the present study, three treatments were investigated with regard to their effect on the behavior of six competition horses in the stable, behavior during training, and on their degree of stress: daily training without free exercise (no turnout [NT]), solitary turnout for 2 hours after training, and 2-hour turnout in groups of two after training (group turnout). The horses' behavior in the stable was continuously analyzed through video recordings (2 Pm to 6 Am) on 3 days at the end of each treatment. The degree of stress was evaluated daily by heart rate variability at rest. The behavior during training was evaluated by a questionnaire answered by the riders, and the distance covered during training was measured by global positioning system. When NT was allowed, the horses showed less lying in the stable compared with the treatments with turnout. Heart rate variability measurements resulted in great individual differences, but generally, there was a higher degree of stress shown with the treatment NT according to the following parameters: standard deviation of inter-beat-intervals (SDNN), square root of the mean of the sum of the squares of differences between successive inter-beat-intervals (RMSSD), and ratio between low frequency and high frequency (LF/HF). The willingness to perform was evaluated as being slightly better in the treatments with turnout than in the treatment without turnout. (C) 2012 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.jevs.2011.06.009"],["dc.identifier.isi","000298936100005"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7076"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27864"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0737-0806"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Competition Horses Housed in Single Stalls (II): Effects of Free Exercise on the Behavior in the Stable, the Behavior during Training, and the Degree of Stress"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","submitted_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","417"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Journal of Equine Veterinary Science"],["dc.bibliographiccitation.lastpage","425"],["dc.bibliographiccitation.volume","31"],["dc.contributor.author","Werhahn, Hanna"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","Schulze, Hanna"],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T08:54:35Z"],["dc.date.available","2018-11-07T08:54:35Z"],["dc.date.issued","2011"],["dc.description.abstract","In Germany, most competition horses are housed in single stalls and free exercise is not permitted in many cases. The reason for not allowing free exercise is mostly the risk of injury. Additionally, opinions exist that the horses' demand for exercise is fulfilled by training and that the horses' willingness to perform is negatively influenced by free exercise. In the present study, three turnout practices were investigated with regard to their effect on the behavior of four horses: daily training without free exercise (no turnout), 2-hour turnout (for free exercise) before training, and 2-hour turnout after training. The aim of this study was to determine any differences in the horses' behavior between the three treatments. The horses' behavior in the stable was observed through video recordings. The behavior during turnout was observed directly and during training was evaluated by the riders with the aid of a questionnaire. Additionally, the distance covered during turnout was measured by Global Positioning System devices. The behavior within the stall was more restless in the treatment without turnout-which became apparent in significantly more frequent changes between behaviors as compared with the treatments with turnout. The results of Global Positioning System measurement during turnout showed a significantly shorter distance covered when horses were trained before they were turned out compared with turnout before training. If the horses were turned out after training, they also showed less trotting and cantering and more dozing. The horses' willingness to perform was not significantly different between the three treatments. (C) 2011 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.jevs.2011.01.006"],["dc.identifier.isi","000293311400010"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7074"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22700"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0737-0806"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Temporary Turnout for Free Exercise in Groups: Effects on the Behavior of Competition Horses Housed in Single Stalls"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","submitted_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","425"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Journal of Equine Veterinary Science"],["dc.bibliographiccitation.lastpage","431"],["dc.bibliographiccitation.volume","30"],["dc.contributor.author","Werhahn, Hanna"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","Bachhausen, Irene"],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T08:40:53Z"],["dc.date.available","2018-11-07T08:40:53Z"],["dc.date.issued","2010"],["dc.description.abstract","The effects of three different bedding materials (straw, wood shavings, and straw pellets) on the behavior of six warmblood horses (four mares, two of them with foals) housed in single stalls were analyzed. Each material was used for 2 weeks in three consecutive runs. The behavior of the horses was videotaped and analyzed on the first and last 3 days for each bedding alternative in the last of the three runs. The time budgets for the behaviors including standing, eating, lying, occupation with bedding material, and other were generated. Compared with straw pellets and wood shavings, the application of straw bedding led to a significantly higher frequency and longer duration of occupation with bedding material and in turn, shorter fractions of standing and other behaviors. The total duration of lying was significantly longer on straw than on straw pellets. Straw pellets resulted in the least mean recumbency duration per occurrence of this behavior. Because occupation is one of the important functions that bedding material is supposed to fulfill, we concluded that in regard to horse behavior, straw bedding was the best among the three materials analyzed. Further investigations with a more homogeneous group of probands are necessary to verify the observed behavioral reactions."],["dc.identifier.doi","10.1016/j.jevs.2010.07.005"],["dc.identifier.isi","000281535200007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19342"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","0737-0806"],["dc.title","Effects of Different Bedding Materials on the Behavior of Horses Housed in Single Stalls"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","178"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Computers and Electronics in Agriculture"],["dc.bibliographiccitation.lastpage","184"],["dc.bibliographiccitation.volume","68"],["dc.contributor.author","Reiners, Kerstin"],["dc.contributor.author","Hegger, Alexander"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","Boeck, Stephan"],["dc.contributor.author","Wendl, Georg"],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T11:23:26Z"],["dc.date.available","2018-11-07T11:23:26Z"],["dc.date.issued","2009"],["dc.description.abstract","The study examined simultaneous individual animal identification of newly weaned piglets based on radio frequency identification (RFID) using passive high frequency (HF) transponders focusing on identification rate and identification accuracy. The antenna for simultaneous individual animal identification was integrated into the round trough of the feeder and connected to a conventional high frequency long range reader. HF transponders were attached to the eartags of the piglets. An anti-collision system was used in order to facilitate simultaneous registration of animals which were within reading range of the antenna at the same time. Anti-collision systems allow multiple access handling and prevent the collision of transponder data within the reading range of a RFID reader, which would render data unreadable. In order to determine the identification rate of this innovative system, trough visits of selected focal animals registered by the simultaneous individual animal identification were verified using video observation. The anti-collision system of simultaneous individual animal identification was validated through group observations. The identification rate of 97.3% in simultaneous individual animal identification was very high. 33.3% of the trough visits were thereby registered simultaneously. 64% of the trough visits were registered with a short time delay. Average time delay of simultaneous individual animal identification did not exceed 3.00s. The simultaneous individual animal identification sensed the beginning of a trough visit 0.28 +/- 6.08s earlier than the observer. The simultaneous individual animal identification registered piglets leaving the trough on average 2.77 +/- 7.11 s earlier than the observer. Frequenting the trough had a significant influence on the functionality of the simultaneous individual animal identification. The number of animals registered by the simultaneous individual animal identification differed on average by 0.19 +/- 0.04 piglets from the result of the observer if one single piglet was within the range of the antenna. If more than five animals were within the range of the antenna, a deviation of 1.04 +/- 0.19 animals was observed (P < 0.0001). The demonstrated system in principle represents a good possibility to simultaneously identify piglets online at the round trough of a feeder. (C) 2009 Elsevier B.V. All rights reserved."],["dc.description.sponsorship","H. Wilhelm Schaumann Stiftung"],["dc.identifier.doi","10.1016/j.compag.2009.05.010"],["dc.identifier.isi","000269025400006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/56194"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","0168-1699"],["dc.title","Application of RFID technology using passive HF transponders for the individual identification of weaned piglets at the feed trough"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3805"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Journal of Animal Science"],["dc.bibliographiccitation.lastpage","3816"],["dc.bibliographiccitation.volume","87"],["dc.contributor.author","Fleming, K."],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T11:22:47Z"],["dc.date.available","2018-11-07T11:22:47Z"],["dc.date.issued","2009"],["dc.description.abstract","The aim of this study was to compare different types of bedding and mucking regimens used in horse stables on the generation of airborne particulate matter < 10 mu m (PM10) and 3 biogenic gases (carbon dioxide, nitrous oxide, and especially ammonia). Three separate experiments were undertaken. The experiments were carried out in an enclosed stable (9.7 m long, 8.7 m wide, and 3.5 m high) that had 5 single boxes housing 4 horses. The measuring instruments were set up in the middle of one side of the stable. In Exp. 1, 3 types of bedding material (wheat straw, straw pellets, and wood shavings) used for horses were assessed according to their ammonia generation. Each type of bedding was used for 2 wk, with 3 repetitions. The mean ammonia concentrations within the stable were 3.07 +/- 0.23 mg/m(3) for wheat straw, 4.79 +/- 0.23 mg/m(3) for straw pellets, and 4.27 +/- 0.17 mg/m(3) for wood shavings. In Exp. 2, the effects of the mucking regimen on the generation of ammonia and PM10 from wheat straw (the bedding with the least ammonia generation in the previous experiment) were examined using 3 different daily regimens: 1) no mucking out, 2) complete mucking out, and 3) partial mucking out (removing only feces). The mean ammonia concentrations in the stable differed significantly among all 3 mucking regimens (P < 0.05). The greatest values were recorded when the stalls were mucked out completely every day [least squares means (LSM) = 2.25 +/- 0.1 mg/m(3)]. No mucking out resulted in an LSM of 1.92 +/- 0.1 mg of ammonia/m(3), whereas an LSM of 1.54 +/- 0.1 mg of ammonia/m(3) was found when the partial mucking out method was used. No mucking out also resulted in significantly less average PM10 (124.4 +/- 13.4 mu g/m(3)) than in the other 2 regimens (P < 0.05). In Exp. 3, a 6-wk bedding regimen without mucking out was evaluated with regard to gas and airborne particle generation. The ammonia values were found not to increase constantly during the course of the 6-wk period. The average weekly values for PM10 also did not increase constantly but varied between approximately 90 and 140 mu g/m. It can be concluded from the particle and gas generation patterns found in the results of all 3 experiments that wheat straw was the most suitable bedding of the 3 types investigated and that mucking out completely on a daily basis should not be undertaken in horse stables."],["dc.identifier.doi","10.2527/jas.2008-1569"],["dc.identifier.isi","000270921900039"],["dc.identifier.pmid","19617518"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/56051"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Soc Animal Science"],["dc.relation.issn","0021-8812"],["dc.title","Gas and particle concentrations in horse stables with individual boxes as a function of the bedding material and the mucking regimen"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","230"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","JOURNAL OF SWINE HEALTH AND PRODUCTION"],["dc.bibliographiccitation.lastpage","238"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Reiners, Kerstin"],["dc.contributor.author","Hessel, Engel F."],["dc.contributor.author","Sieling, S."],["dc.contributor.author","van den Weghe, Herman F. A."],["dc.date.accessioned","2018-11-07T08:39:54Z"],["dc.date.available","2018-11-07T08:39:54Z"],["dc.date.issued","2010"],["dc.description.abstract","Objective: To evaluate whether a prolonged photoperiod days 1 to 4 after weaning influences behavior and performance. Materials and methods: Weaned pigs were allotted to daily photoperiods of 20 hours and 8 hours of light, respectively, for days 1 to 4 after weaning. Data were obtained from 234 pigs from 12 pens, resulting in n = 6 replicates per treatment. Behavior was observed during the initial 48 hours after weaning and on day 5 (when photoperiod was changed from 20 hours to 8 hours) in the prolonged light exposure group. Feed disappearance was recorded throughout the whole nursery period. Pigs were individually weighed on the day of weaning and at weekly intervals during the 7-week nursery period. Results: Feed disappearance tended to be higher (P = .09) in the prolonged light exposure group in the initial 24 hours after weaning. Considering the whole nursery period, feed disappearance did not differ between the treatment groups (P = .73). Pigs in the prolonged light exposure group did not gain more weight in the first week after weaning (P = .34). Also considering the entire 7-week nursery period, body weight gain did not differ between the groups (P = .84). Implications: Feed disappearance on the day after weaning tends to be greater in pigs housed in a prolonged photoperiod. Nevertheless, prolonging the photoperiod during the first 4 days after weaning does not influence feed disappearance or body weight gain over the entire nursery phase."],["dc.description.sponsorship","H. Wilhelm Schaumann Foundation (Hamburg, Germany)"],["dc.identifier.isi","000281536900004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19112"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Assoc Swine Veterinarians"],["dc.relation.issn","1537-209X"],["dc.title","Influence of photoperiod on the behavior and performance of newly weaned pigs with a focus on time spent at the feeder, feed disappearance, and growth"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]