Comparative assessment of feed preparation technologies for Ukrainian breeds of dairy cows

Palavras-chave: cattle breeding, breed, feeding technology, feed preparation, milk yield, prediction model

Resumo

The analysis of variance of the breed's influence on the milk yield in the farms has established that there is no difference between the milk yields of Ukrainian black-and-white dairy breed and Ukrainian red-and-white dairy breed. Influence of breed on milk yields was not significant (P>0.05). Therefore, an assessment of feeding technologies and development of a model for prediction of milk yield were carried out without taking into account the breeds. Average duration of working action, called "feed unloading from the shovel", amounts 6.82±0.43 s without weighing and 14.94±3.61 s with weighing during loading. The measure of influence of the feed unloading type on the duration of that working action η2=0.217 (P<0.001). Coefficient of correlation between number of forage in feed mixture and: total number of working actions of feeder in cycle of feed preparation amounted 0.58 (P<0.01); specific number of working actions of feeder for service 1 cow in cycles of preparing of feeds was 0.41 (P<0.05); expenses of forage loader for servicing 1 cow in cycles of forages loading equaled 0.60 (P<0.05). The mechanisms of influence of ergonomic components' characteristics of preparation, delivery and distribution of feeds on behavior, milk productivity, labor productivity and efficiency of different technological processes were found and formalized. The model of evaluation of expected milk yields at the farm on base of feeding technology characteristics was developed. The model includes the variables: method of feeding of different forms of forages (total mixed / mixed + separately / separately), number of forage types in ration and method of dosage. The model describes 83% of variation of milk yields significantly (P<0.01). Ceteris paribus, the farms, which apply feeding a total mixed rations ad libitum, are capable to get milk yields on 1581-2585 kg higher than farms, which realize feeding technology less rationally.

Referências

DILLON, P.; SNIJDERS, S.; BUCKLEY, F.; HARRIS, B.; O’CONNOR, P.; MEE, J.F. A comparison of different dairy cow breeds on a seasonal grass-based system of milk production: 2. Reproduction and survival. Livestock production science. v.83, p. 35-42, 2003. https://doi.org/10.1016/s0301-6226(03)00042-3

DOUPHRATEA, D.I.; NONNENMANNB, M.W.; ROSECRANCEA, J.C. Ergonomics in industrialized dairy operations. Journal of agromedicine. v. 14, p. 406-412, 2009. https://doi.org/10.1080/10599240903260444

KARSZES J.; HOWLETT A. Cost of loading, mixing, and delivering feed: feed center activity analysis. New York: Cornell University Ithaca, 2016. 19 p.

LAGE, B.; VILLELA, S.; CYRILLO, J.; BRANCO, R.; MERCADANTE, M.; ALBUQUERQUE, L. Relationships between feeding behavior and average daily gain in cattle. Boletim de Indústria Animal, v.70 (supl.), 2013.

LUNDGVISTA, P.; STLA, M.; PINZKEA, S. Ergonomics of cow milking in sweden. Journal of agromedicine. v. 14, p. 169-176, 1997. https://doi.org/10.1300/j096v04n01_21

MANTYSAARI, P.; KHALILI, H.; SARIOLA, J. Effect of feeding frequency of a total mixed ration on the performanceof high-yielding dairy cows. Journal Dairy Science. v.89, p.4312–4320, 2006. https://doi.org/10.3168/jds.s0022-0302(06)72478-x

MCNULTY P.B.; GRACE P.M. Agricultural mechanization and automation. v. 1. Paris:EOLSS publishers, 2009. 524p. https://doi.org/10.13140/2.1.4421.9683

MONDAL, R.K.; SEN, S.; RAYHAN, S.J. A comparative economic analysis of local breed and cross breed milk cow in a selected area of Bangladesh. Journal of Science Foundation, v. 8, p. 23-29, 2010. https://doi.org/10.3329/jsf.v8i1-2.14616

PEZZUOLO, A.; CHIUMENTI, A.; SARTORI, L; BORSO, F. Automatic feeding system: evaluation of energy consumption and labour requirement in north-east italy dairy farm. Engineering for rural development, v.25, p. 882-887, 2016.

SHABLIA, V.P. Erhonomichni ta etolohichni metody otsinky tekhnolohiy pryhotuvannya ta rozdachi kormiv. Naukovo-tekhnichnyy byuleten’ Instytutu tvarynnytstva NAAN Ukrayiny. No109. p.170-181, 2013.

SHORTALL, J.; FOLEY, C.; SLEATOR, R.D.; O’BRIEN, B. The effect of dairy cow breed on milk production, cow traffic and milking characteristics in a pasture-based automatic milking system. Livestock Science. v.209, p.1-7, 2018. https://doi.org/10.1016/j.livsci.2018.01.002

RUBAN, S.Y.; PEREKRESTOVA, A.V.; SHABLIA, V.P.; BOCHKOV, V.M. Feed conversion efficiency in different groups of dairy cows. Ukrainian Journal of Ecology, v.8, p.124–129, 2018. doi: 10.15421/2018_196

Publicado
27-12-2018
Como Citar
Shablia, V. (2018). Comparative assessment of feed preparation technologies for Ukrainian breeds of dairy cows. Boletim De Indústria Animal, 75. https://doi.org/10.17523/bia.2018.v75.e1424
Seção
SISTEMA DE PRODUÇÃO E AGRONEGÓCIOS