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Scrapie is a prionic illness with endemic character in many parts of the glob, and the control measures is difficult to apply because of the long incubation period, the lack of the preclinical manifestation and the existing tests for diagnostic in living animals. The Ppn-p locus is polymorphic with known variability at codon 136, 154, 171, which are associated with different sensibility in experimental and natural spongiform encephalopaties. General the possible combinations of the 5 amino acids encoded by the 3 different codons will determine the existence of 15 possible genotypes. To put in evidence those polymorphisms at the ovine Prn-p locus, several methods are developed but the most accurate assay is the direct sequencing of the gene and the primer extension technique. The purpose of this study was to determine the genotypes at Prp locus in 123 male of Tsurcana breed, Hateg ecotype, using primer extension technique (ABI 3130xl Genetic Analyzer) and to establish the risk groups of the susceptibility at scrapie disease.

The paper describes some associative aspects of various biochemical-genetic markers with the reproduction activity in ewes of the Botosani Karakul breed. The two most important reproduction parameters (fecundity and prolificacy) were analyzed according to the genotypes or phenotypes of polymorph systems (haemoglobin, transferrin, albumin and blood potassium) of females. The relationship between reproduction data and genetic markers in ewes was quantified both for each genotype (phenotype) and for each mating couple type made up depending on the genotype (phenotype) of the couple partners (homozygous x homozygous, homozygous x heterozygous or heterozygous x heterozygous). All these associative aspects and their results are discussed for each polymorph genetic system. The ewes which are heterozygous at different genetic marker loci are more fertile and more prolific than the ewes which are homozygous at the levels of these loci. The highest conception and lambing rates resulted from the mating couples in which both partners were heterozygous and the least lambs were obtained from the mating couples in which both partners were homozygous; the fertility and prolificacy had intermediate values in heterogeneous mating couples (heterozygotes x homozygotes) but they were nearer to the case in which both mating couple partners were heterozygous. The sheep breeding field can benefit by the contribution of biochemical-genetic markers to optimize the selection criteria with a view to increasing the reproduction capacity of this species.

In the last ten years the milk lambs were very demanded on the west European market, especially at the beginning of December and early spring. In this researches was followed the growing speed evolution on crossbreed Charollais x Merinos de Transilvania lambs, from lambing to weaning (70 days). Mother sheep were well prepared before get trough a normal nutrition, depending on the phase of gestation and adequate sheltering conditions. At lambing, sheep had a very good condition and a normal milk production. Crossbreed lambs had maternal milk on ad libitum and from the age of 10 days got in separated enclosures, quality after-grass and granulated combined feeder with 14% PDI in the first 30 days and 12% between 30- 70 days. After the evaluation of the growing speed it was determined that lambs from single lambing, both sexes (F-female, M-male), realize a growing speed, between lambing to weaning (70 days) superior (370g/day), the ones from twin lambing (F-F couple 286g/day, F-M couple 299g/day, M-M couple 302g/zi). The growing speed is significantly higher (p < 0.01) in 30-70 days period, compared with 10-30 days period, both in lambs from single and twin lambing. On the base of this study, we suggest that for obtaining milk lambs with a higher body weight and quality meat, realization of crossbreed lambs between breeds Charollais and Merinos de Transilvania, is opportune. This should be raised with maternal milk and strong feeder, at least until the age of 70 days.

The paper proposes a simplified formula to estimate the milk production in sheep. The formula is based on using the polynomial of Hermite interpolation of 0 degree. The result constitutes a control value for the milk production parameter. This value is well correlated with the correctly calculated value by a polynomial interpolation of superior degree.

The objective of our researches was to observe the nutritive and productive effect of the ratio, offered at discretion, composed of alfalfa hay and barley under the following presentation forms: whole grains, small particles ground (2.5mm) with and without addition of yeast, strain Yea-Sacc1026, to lambs submitted for fattening. The experiment lasted 37 days, the biological material was represented by Turcana lambs, grouped in three lots (n=11). Growth performances were insignificant (p> 0.05) for the final body weight, total weight gain and average daily gain, but the specific intake was decreased with 0.85 UNC in lambs that consumed ground barley prior to those that consumed whole barley grains. The addition of Saccharomyces cerevisiae, strain Yea-Sacc1026 in the ground barley at 2.5 mm has a significant effect (p

The study was carried on 1425 ewes Transilvanian Merinos sheep in the farm belonging to SC Sinnagro SA, Timis country, regarding the reproduction during breeding season and in extra- season. The investigation revealed that these sheep held in good condition do express estrus (88%) during spring-summer (May-June) and are lambing during autumn (82%) with a lower prolificacy (109%). During fall, almost all sheep (98%) displayed estrus, lambing in a proportion of 94,8%, with a prolificacy of 127,1%. The statistical analysis emphasized that all reproductive indexes are higher (p

This paper aimed the monitoring of the average daily gain, from birth until the age of 8 months, of White Turcana x Lacaune hybrid lambs in comparison with White Turcana lambs. The investigations were performed in S.C.D.C.O.C. Caransebes. This study emphasized that in the first day of life, at weaning and at the age of 2 months the White Turcana x Lacaune hybrid lambs have not a significant (p>0.05) higher average daily gain in comparison with Turcana lambs. At the age from 2 to 8 months the hybrid lambs reached (113 g/day) a significant average daily gain (p

Pasture associations, consisted of graminaceous and perennial legume species, represent a balanced forage for young sheep, because they generate a high-quality meat and an optimal level of the serological indices. In this viewpoint, legume species contribute to the achievement of superior quality indices of the animal-based products.

The temporary pastures’ floristic structure influences directly the growth and development of young sheep during grazing. The associations, beside the graminaceous and perennial legume species (white clover and birdsfoot trefoil), contribute mostly to the increase of carcass dimension and organ weight. The quality of the forage from such a pasture, better balanced in terms of energy and protein, influences all growth and development parameters in young sheep.

The objective of our researches was to observe the nutritive and productive effect of the ratio, offered at discretion, composed of alfalfa hay and barley under the following presentation forms: whole grains, roughly ground (4mm) with and without addition of yeast, strain Yea-Sacc1026, to lambs submitted for fattening. The experiment lasted 54 days, the biological material was represented by Turcana lambs, grouped in three lots (n=12). Growth performances were significant bigger (p< 0.04) for the final body weight, total weight gain and average daily gain, but the specific intake was decreased with 0.49 UNC in lambs that consumed ground barley prior to those that consumed whole barley grains. The addition of Saccharomyces cerevisiae, strain Yea-Sacc1026 in the ground barley at 4 mm has a more productive and evident effect (p

Chicory is a herbaceous, perennial, edible plant from the Genus Chicorium of the Family Asteraceae. In Romania, chicory is known mainly for its medicinal uses due to its high content of diuretic and laxative, hypoglycaemic, anti-thyroid and depurative substances. Its particular resistance to climate conditions, particularly prolonged droughts, and its high nutritive value have determined the introduction into cultivation of chicory in different fodder crop structures, particularly in moisture-deficit areas, where it is cultivated both in pure culture and in different temporary grassland mixtures. Chicory is a herbaceous, perennial, edible plant from the Genus Chicorium of the Family Asteraceae. It has been known ever since Ancient times: in Ancient Egypt, it was cultivated as a medicinal plant and was used to treat liver and bile, and kidney diseases. Nowadays, chicory root is a very popular coffee surrogate and its aerial parts are used in medicine and gastronomy (basal leaves, slightly bitter, are used in salads). Chicory is native from North Africa, Europe and Asia; it can be seen in different ecological areas, but it is spread mainly in grasslands and in haymaking fields, in uncultivated areas, from the plain area to the hill and mountain areas. In Romania, chicory is known mainly for its medicinal uses due to its high content of diuretic and laxative, hypoglycaemic, anti-thyroid and depurative substances. Though very frequent in the spontaneous flora, chicory is still very little known in Romania as a forage crop. Its particular resistance to climate conditions, particularly prolonged drought, and its high nutritive value (superior to other well-known fodder species such as alfalfa, cock's foot, and clover) determined its introduction in different fodder crop structures, particularly in moist-deficit areas, where it is cultivated both in monoculture and in different temporary grassland mixtures. The last decades, the cultivation of forage chicory has spread to all Mediterranean countries as well as to New Zealand and Australia, U.S.A. and Canada, France, Italy, India, and China (SANDERSON et al., 2001). [ABSTRACT FROM AUTHOR]