STUDY ON N.T.G. AND ESCHERICHIA COLI CONTAMINATION OF CATTLE AND PIG CARCASSES

The total number of germs (NTG), determined during the technological flow of processing of cattle in the slaughterhouse, provided values between 4.8 - 6.8 log CFU/cm2 after the skinning stage and 3.1-5.2 log CFU/cm2 after the cooling stage.The highest values were recorded after the skinning stage in the inner thigh region, and the lowest after the cooling stage in the chest region .In pigs, NTG recorded higher values, between 4.2 - 5.8 log CFU/m2 after the scalding stage and 4.2 -7.1 log CFU/cm2 after evisceration. The highest values were obtained after the evisceration stage in the external region of the thigh, and the lowest after the scalding stage in the chest region

INFLUENCE OF FEEDINGON THE WEIGHT OF BROILER CHICKENS

As compared to the results obtained, it is recommended for the practical application during 1-45 days a feed of 2900 kcal E.M./kg combined fodder having 21 % P.B. with 1,1 % lysine and 0,450 % methionine and with a protein-energy ratio of 139. At 45 days the chickens gained on average a body weight of 1178 g with a consumption of 2,2 kg combined fodder per 1 kg gain in live weight. For the finishing period 46-60 days it is recommended the feed of 3100 kcal/kg of combined fodder with 19 % P.B., having 0,920 % lysine and 0,410 % methionine and a protein-energy ratio of 163; with the help of this feed it has been obtained, in that period, an average gain of 0,582 kg, with a consumption of 2,35 kg combined fodder per kg gain

Intensive fattening in housing conditions of young sheep Merino type

The intensive fattening in housing conditions of Merino young sheep implies monthey food rations containing approximately 100/110 g RDP/ 1 NMU. Under these conditions the animals can reach almost 48 kg from the initial 28 in about 93 days, so the total growth increase is of 20 kg, accepted by the aliment costs. The second lot which was administrated a mixture of concentrated fodder with an intermediary content of digestive albumin also has the presented average indices

THE EFFECT OF INCLUDING PEAS IN THE COWS’ RATION ON THE MILK PRODUCTION

After calving, cows may lose up to 0.7 kg of their corporal weight daily. This is why the experience was made with cows after 90-100 lactation days, and the use of peas in the cows’ rations has a much better forage efficiency in this lapse of time.The average milk production for the control lot was 34.7 kg / day / cow ±1.36 kg standard deviation, and for the experimental lot 35.4 kg / day / cow ±1.04 kg standard deviation. It is found an extra quantity of 0.7 kg milk for the experimental lot in report to the control lot. The milk production standardized to 3.5% fat, was for the control lot 34.61 kg/ day / cow , ± 1.30 kg standard deviation, and for the experimental lot, 35.89 kg/ day / cow ± 1 kg standard deviation. We obtained an extra quantity of 1.280 kg milk

RESULTS ON QUANTITATIVE ANALYSIS OF NITRATES AND NITRITES IN SOME FOOD PRODUCTS OF ANIMAL ORIGIN

The toxicity of nitrates is also manifested by its ability to convert to nitrosamines; nitrosamines can form in both food products (exogenous origin) during storage and in the digestive system (endogenous origin), especially in the stomach. The nitrites diasotize the sulphanilic acid in an acidic medium and the formed diazonium salt is coupled with alpha-naphthylamine to give a pink-colored azoic compound with a maximum absorption at λ = 520nm. In the meat products analyzed the nitrate content recorded large variations, ranging from 27.54 mg/kg to the Polish sausage sample and 79.31 mg/kg in the pork pastrami sample.Nitrate concentrations were within a broad range without exceeding the maximum permissible concentration (0.74 mg/kg in the half-smoked sausage  sample, respectively 32,24 mg/kg in the chicken sausage

RESULTS REGARDING THE EFFECT OF PEAS IN THE COWS` RATION ON THE FORAGE EFFICIENCY

The forage consumption higher than the one necessary for the support functions determines an increase of the milk production corrected to 3.5% fat and of the forage efficiency from 1.29 to 1.93, corresponding to the increase with once to five times of the forage consumption. Unfortunately, the increase of the forage consumption also affects the ration digestibility. In this case, the digestibility decreases with almost 3 digestible units or 0.03 Mcal/kilogram

EFFECT OF FEEDING ON THE CONSUMPTION OF FODDER AND THE STRUCTURE OF BROILERS CARCASSES

The consumption of feed, protein and essential amino acids, as well as the metabolisable energy, to obtain one kilogram gain, registered better results, although they are not statistically ensured for the feed used in group 1 as compared to the feed used in group 2. With the feeds mentioned in the 2 periods, Cornish x Rock broilers at the age of 60 days registered, on average, a body weight of 1,700 kg with a consumption of 2,250 kg combined fodder/kg gain in live weight. There were not significant differences in the experimental variants regarding the weight of carcasses, the yield at slaughter of carcasses with and without organs, the bones-meat ratio and the weight of some organs such as: liver, gizzard and heart

Protein feeding effect of stimulation of bee families

Better results in maintaining bee population size entering in the winter period wereobtained by using the mixture FEEDBEE + pollen preserved in comparison withFEEDBEE` exclusive use, but lower than the single use of pollen.At the end of the experimental period between batch E4 which was fed with syrup+ 20% pollen, and batch E3, which received syrup + 10% FEEDBEE + 10% pollen, there was a significant difference statistically speaking of the average number of bees per family, which demonstrates the possibility of partial replacement with good results of the pollen preserved with the pollen substitute FEEDBEE

RESEARCH REGARDING THE PRESENCE OF LISTERIA SPECIES IN MILK FOOD PRODUCTS

Out of the total 232 analysed samples,12 (5,17%) were Listeriaspp positive., andout of these latter ones 7 (3,02 %) Listeria monocytogenes stems, 4 (1,72 %) Listeria innocua stems and one (0,43 %) Listeria welshimeri stem were isolated. The presence of Listeriaspp was found in the analysed products in the following percentages: in pasteurised cows` milk 6,45 %, in cows` milk obtained from unpasteurised milk 4,25 %,in cream obtained from unpasteurised milk 6,66 %, and in fresh ewe`s curd 6,25 %. Listeria monocytogenes species was prevalent in the positive samples with a percentage of 58,33 %, while the other species were considered as having no pathogenic significance. Listeria monocytogenes was not isolated in the samples coming from pasteurised cows` milk and this makes us think that this thermal proceeding is efficient for destroying the listerias

STUDY REGARDING THE SANITARY-VETERINARY CONTROL OF THE CATTLE CARCASES WITHIN S.C. SIMONA S.R.L. SLAUGHTERHOUSE OF BALȘ

After the results obtained from the five samples collected from 6 carcases, we mayconclude that, out of the total 30 samples examined according to the values obtained in a logarithm with base 10, there were 5 satisfactory samples, 21 acceptable samples and 4 positive-valued unsatisfactory samples. The carcases samples were examined by means of the horizontal method of enumerating the total number of germs (NTG) according to SR EN ISO 4833/2003 by means of the technique of counting the colonies at 300C, obtaining values in ufc/cm2, that by changing into log10/cm2, we could spotlight the contamination degree of the cattle carcases within the microbiological norm (satisfactory, acceptable and unsatisfactory) according to the microbiological criteria stipulated in the (EC) Regulations no. 1441/2007, to the amendment of the (EC) Regulations no. 2073/2005 regarding the microbiological criteria for food products