RESEARCH REGARDING GREEN MASS CONSUMABILITY OF NATURAL GRASS LANDS AND PRODUCTIVE EFFECT IN FATTENING YOUNG CATTLE
Marinela Enculescu
Abstract
This experiment, aims to establish the relationships between chemical composition of volume forages, their consumability and the productive effect in fattening young cattle of Brown breed. The productive effect of volume forages along with concentrates administered in the food young cattle, is influenced in the most part by ingestion capacity, which varies depending of many factors. Thus, was organized three experimental groups: E1, E2 and E3 of eight heads young cattle of Brown breed. The First one experimental group received green mass which coming from a natural grass lands, consisting of a mixture of graminaceous that dominate Lolium perene and vegetable, all harvested from the third pastoral cycle, given as the only component of the ration. The second experimental group received green mass ad libitum and two kg concentrates for each head every day, keeping the rations before established. The third experimental group received green mass ad libitum and three kg concentrates for each head every day.
The results of this experiment showed that: the green mass consumability was different from quantitative point of view (ingestion capacity per head per day), it have been in close interdependence with nutritive value, the presence or absence of the other types of fodder in ration. In the same time there is a other factors related to the body specifity, such as, the age, the body weight, the capacity of the rumen etc.
Key words: fattening young cattle, green mass consumption, natural grass lands, productive effect
CERCETARI PRIVIND CONSUMABILITATEA MASEI VERZI DE PE PAJISTILE NATURALE SI EFECTUL PRODUCTIV AL ACESTEIA LA TINERETUL TAURIN LA ÎNGRASAT
Marinela Enculescu
Rezumat
Acest experiment, are ca scop stabilirea relatiei dintre compozitia chimica a furajelor de volum si consumabilitatea acestora când sunt administrate în hrana tineretului taurin de rasa Bruna ca si efectul lor productiv.
Efectul productiv al furajelor de volum alaturi de concentrate administrate în hrana taurinelor este influentat în mare parte de capacitatea de ingerare a acestora, ce variaza în functie de o multitudine de factori.
Astfel, au fost organizate trei loturi experimentale: E1, E2 si E3 a câte 8 capete tineret taurin rasa Bruna. Lotul experimental E1 a primit masa verde provenita de pe o pajiste naturala, formata din amestec de graminee în care predomina Lolium perene si leguminoase, toate recoltate la al III lea ciclu de pasunat, administrata la iesle ca unic component al ratiei. Lotul experimental E2 a primit masa verde la discretie plus 2 kg nutret concentrat/cap/zi, pastrându-se ratia indicata pe toata durata experimentului, iar lotul experimental E3 a primit pe lânga masa verde administrata la discretie, un supliment de 3 kg nutret concentrat/cap/zi.
Rezultatele acestui experiment referitoare la consumabilitatea masei verzi sub aspect cantitativ, releva faptul ca în conditiile hranirii tineretului taurin cu acest furaj, cantitatea ingerata pe cap si pe zi difera, fiind într-o strânsa interdependenta cu valoarea sa nutritiva, cu prezenta sau absenta din ratie a altor sortimente furajere, dar în acelasi timp este conditionata si de alti factori legati de specifitatea organismului, cum ar fi; vârsta, greutatea corporala, capacitatea rumenului, etc.
Cuvinte cheie: tineret taurin la îngrasat, consum masa verde, pajisti naturale, efect productiv
