Antanaitis R, Anskienė L, Televičius M, Malašauskienė D, Šertvytytė G, Stoškus R, Meškinytė E, Rous J, Helm B
Large Animal Clinic, Veterinary Academy, Lithuanian University of Health Sciences, Tilžės str 18, LT-47181 Kaunas, Lithuania.
Department of Animal Breeding, Veterinary Academy, Lithuanian University of Health Sciences, Tilžės str 18, LT-47181 Kaunas, Lithuania.
Pol J Vet Sci. 2022 Dec;25(4):535-546. doi: 10.24425/pjvs.2022.142041.
The aim of this study was to investigate the impact of feed supplements with alfa-amylase and beta-glucanase (Optipartum C+ 200) on ingestive-related behaviour biomarkers registered with real-time sensors: rumination behaviours and reticulorumen parameters (pH and temperature). Cows (n=20) in the treatment group (TG) were fed with Optipartum C+ 200 (Enzymes feed supplement: Alfa-Amylase 57 Units; Beta-Glucanase 107 Units) from 21 days before calving until 30 days after calving with a feeding rate of 200 g/cow/day. Cows (n=22) in the control group (CG) were fed a feed ration without feed supplement. Measurements started from 6 days before calving and continued until 21 days after calving. The following indicators were registered: with the RumiWatch System: Rumination time; Eating time; Drinking time; Rumination chews; Eating chews; Drinking gulps; Bolus; Chews per minute; Chews per bolus. With the SmaXtec system: the temperature, pH of the contents of the cows' reticulorumens, and cows' walking activity. According to our results, feed supplementation with alfa-amylase and beta-glucanase (Optipartum C+ 200) in the TG group resulted in increases in the following parameters: 9% rumination time and eating time, 19% drinking time, 11% rumination chews, 16% eating chews, 13% number of boluses per rumination, 5% chews per minute and 16% chews per bolus. The rumination time showed a strong, positive relation with rumination chews and bolus indicators in both groups (TG and CG) (p⟨0.001); while the rumination time in both groups of cows showed an opposite direction and was negatively related to eating time and eating chews (p⟨0.05). We found a 1.28 % lower reticulorumen pH and a 0.64 % lower reticulorumen temperature in cows fed with the supplement compared with cows in the control group. Cows in TG were 8.80% more active than those in the CG group. For improvement of ingestive-related behaviour we suggest adding a feed supplement with alfa-amylase and beta-glucanase (Optipartum C+ 200).
本研究的目的是调查添加α-淀粉酶和β-葡聚糖酶（Optipartum C + 200）的饲料添加剂对通过实时传感器记录的与采食相关行为生物标志物的影响：反刍行为以及网瘤胃参数（pH值和温度）。治疗组（TG）中的奶牛（n = 20）在产犊前21天至产犊后30天期间，以200克/头/天的饲喂量饲喂Optipartum C + 200（酶饲料添加剂：α-淀粉酶57单位；β-葡聚糖酶107单位）。对照组（CG）中的奶牛（n = 22）饲喂不含饲料添加剂的日粮。测量从产犊前6天开始，持续到产犊后21天。记录了以下指标：使用RumiWatch系统：反刍时间；采食时间；饮水时间；反刍咀嚼次数；采食咀嚼次数；饮水吞咽次数；食团；每分钟咀嚼次数；每个食团的咀嚼次数。使用SmaXtec系统：奶牛网瘤胃内容物的温度、pH值以及奶牛的行走活动。根据我们的结果，TG组中添加α-淀粉酶和β-葡聚糖酶（Optipartum C + 200）的饲料补充剂导致以下参数增加：反刍时间和采食时间增加9%，饮水时间增加19%，反刍咀嚼次数增加11%，采食咀嚼次数增加16%，每次反刍的食团数量增加13%，每分钟咀嚼次数增加5%，每个食团的咀嚼次数增加16%。在两组（TG和CG）中，反刍时间与反刍咀嚼次数和食团指标均呈强正相关（p⟨0.001）；而两组奶牛的反刍时间方向相反，且与采食时间和采食咀嚼次数呈负相关（p⟨0.05）。我们发现，与对照组奶牛相比，饲喂补充剂的奶牛网瘤胃pH值低1.28%，网瘤胃温度低0.64%。TG组的奶牛比CG组的奶牛活跃8.80%。为改善与采食相关的行为，我们建议添加含有α-淀粉酶和β-葡聚糖酶的饲料补充剂（Optipartum C + 200）。
