Marinela Enculescu


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 ĪNGRASAT

Marinela Enculescu

Rezumat
Acest experiment, are ca scop stabilirea relatiei dintre compozitia chimica a furajelor de volum si consumabilitatea acestora cānd sunt administrate īn hrana tineretului taurin de rasa Bruna ca si efectul lor productiv.
Efectul productiv al furajelor de volum alaturi de concentrate administrate īn hrana taurinelor este influentat īn mare parte de capacitatea de ingerare a acestora, ce variaza īn functie de o multitudine de factori.
Astfel, au fost organizate trei loturi experimentale: E1, E2 si E3 a cāte 8 capete tineret taurin rasa Bruna. Lotul experimental E1 a primit masa verde provenita de pe o pajiste naturala, formata din amestec de graminee īn 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, pastrāndu-se ratia indicata pe toata durata experimentului, iar lotul experimental E3 a primit pe lānga 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 īn conditiile hranirii tineretului taurin cu acest furaj, cantitatea ingerata pe cap si pe zi difera, fiind īntr-o strānsa interdependenta cu valoarea sa nutritiva, cu prezenta sau absenta din ratie a altor sortimente furajere, dar īn acelasi timp este conditionata si de alti factori legati de specifitatea organismului, cum ar fi; vārsta, greutatea corporala, capacitatea rumenului, etc.

Cuvinte cheie: tineret taurin la īngrasat, consum masa verde, pajisti naturale, efect productiv