Cziszter Ludovic-Toma, Ilie Daniela-Elena, Neamt Radu-Ionel, Neciu Florin-Cristian, Saplacan Silviu-Ilie, Gavojdian Dinu
Research and Development Station for Bovine Arad, Academy for Agricultural and Forestry Sciences, Arad 310059, Romania.
Banat's University of Agricultural Sciences and Veterinary Medicine 'King Michael I' from Timişoara, Timisoara 300645, Romania.
Asian-Australas J Anim Sci. 2017 May;30(5):666-671. doi: 10.5713/ajas.16.0588. Epub 2016 Nov 17.
Aim of the current comparative study was to evaluate production outputs, reproduction efficiency and functional traits in dual-purpose Fleckvieh and Braunvieh cows, reared under temperate European conditions.
A data-set from 414 Fleckvieh and 42 Braunvieh cows and 799 lactations was analysed. ID tag number, milk yield per milking session, number of steps/interval and milk conductivity were recorded and collected daily using AfiMilk 3.076 A-DU software (Afimilk Ltd., Kibbutz, Israel). Production and milk quality data were taken from the results of the official performance recordings and the reproductive outputs of cows were recorded by the research stations veterinarians. Comparisons between the two genotypes were carried out using the one way analysis of variance protocol, with categorical factor being considered the breed of cows. All the statistical inferences were carried out using Statistica software (StatSoft Inc., Tulsa, OK, USA).
Fleckvieh cows significantly outperformed (p≤0.05) the Braunvieh herd, with average milk yields of 5,252.1±35.79 kg and 4,897.6±128.94 kg, respectively. Age at first calving was significantly (p≤0.01) influenced by the breed, with Fleckvieh heifers being more precocious (32.8±0.29 mo) compared to those of Braunvieh breed (35.7±0.84 mo). Reproduction efficiency as defined by the number of inseminations per gestation, calving interval, dystocia, days dry and days open, was not influenced by genotype (p>0.05). Incidences of sub-clinical mastitis, clinical mastitis, lameness and abortions were not influenced by the breed factor (p>0.05). Stayability of cows was significantly (p≤0.001) influenced by genotype, with Braunvieh cows having an average age at culling of 117.88±11.78 months compared to 90.88±2.89 months in Fleckvieh.
Overall, results have shown that genotype significantly influenced milk yield, age at first calving and longevity.
本比较研究的目的是评估在欧洲温带条件下饲养的兼用型弗莱维赫牛和西门塔尔牛的生产产量、繁殖效率和功能性状。
分析了来自414头弗莱维赫牛和42头西门塔尔牛以及799次泌乳的数据集。使用AfiMilk 3.076 A-DU软件(以色列基布兹Afimilk有限公司)每天记录并收集个体识别标签号、每次挤奶的产奶量、步数/间隔数和牛奶电导率。生产和牛奶质量数据取自官方性能记录结果,奶牛的繁殖产出由研究站兽医记录。使用单因素方差分析方法对两种基因型进行比较,分类因素为奶牛品种。所有统计推断均使用Statistica软件(美国俄克拉荷马州塔尔萨市StatSoft公司)进行。
弗莱维赫牛显著优于(p≤0.05)西门塔尔牛群,平均产奶量分别为5252.1±35.79千克和4897.6±128.94千克。首次产犊年龄受品种显著影响(p≤0.01),弗莱维赫小母牛比西门塔尔牛品种更早熟(32.8±0.29月龄)(35.7±0.84月龄)。以每次妊娠的输精次数、产犊间隔、难产、干奶天数和空怀天数定义的繁殖效率不受基因型影响(p>0.05)。亚临床乳腺炎、临床乳腺炎、跛行和流产的发生率不受品种因素影响(p>0.05)。奶牛的留种率受基因型显著影响(p≤0.001),西门塔尔牛的平均淘汰年龄为117.88±11.78个月,而弗莱维赫牛为90.88±2.89个月。
总体而言,结果表明基因型对产奶量、首次产犊年龄和寿命有显著影响。