Sunflower crop is a good option of income generation because of its grains commercialization and oil extration. The lack of knowledge about performance of genotypes at local conditions is one of the problems to the installation of this crop in the Maranhão State The objective of this work was to evaluate sunflower genotypes and to verify its productive potential in the Maranhão State. The aquenio yield, oil content, oil yield, initial flowering, physiological maturation and height of plants had been evaluated. It was observed that genotypes showed a low average aquenio yield (348 kg/ha), but their average oil content was sactisfatory. ACA 884, Helio 358 and Agrobel 962 had the best results for all of agronomical characteristics evaluated.

The objective of this work was to evaluate substrates compost by organic residues for production of papaya tree seedlings. This research was led greenhouse in the campus of the Federal University of Acre in the period of September to December of 2006. The experiment was installed in design completely randomized with eight treatments and four repetitions, and each experimental unit was constituted of 3 plants. The substrates evaluated were: T1 = plantimax (treatment controls), T2 = compost organic + coconut peel, T3 = compost organic + bed-of-chicken + peel-of-rice carbonized, T4 = compost organic + I manure bovine + peel-of-rice carbonized, T5 = compost organic + earthworm casting + peel-of-rice carbonized, T6 = compost organic + earthworm casting + pit of triturated açaí, T7 = compost organic + earthworm casting + peel of triturated coconut, T8 = compost organic + I manure bovine + peel of triturated coconut. In all the substrates, the representatives were used in same proportions, being still added, 10% of triturated vegetable coal, 1,0 kg.m-3 limestone and 1,5 kg.m-3 of termphosphate, except in the treatment T1 (commercial substratum). The evaluations were accomplished to the 70 days after the planting, being evaluated height of plants, mass of the fresh matter of the aerial part, mass of the dry matter of the aerial part, of the root e total. It was observed that the substrata 4 and 5 presented better acting in relation to the characteristics of the mass of the fresh and dry matter of the aerial part, dry matter of the root and dry matter total, but it didn't differ of the substrate 1 (treatment control), 2 and 8, when the seedling's height was analyzed.

The experiment was carried for 12 months in the Rabbit Unit of Departamento de Zootecnia at the Universidade Federal do Ceará. The aim of this work was to evaluate the rabbit reproductive parameters and ponderable performance of the races New Zealand (NZ) and Califórnia(CA) , in Ceará, Northeast Brazil. Animals were fed with a commercial feed of 2500 kcal DE/kg for rabbit in reproduction. Thirty does (50% of each race) were distributed at random in experimental cages, such that each ¿treatment¿ (race) had 15 replications. Data were analyzed in a complete randomized design. Does were selected by weight and age, being included in the expeiment with 3,0 kg and 4,5 months of age, approximately. The male/female ratio was 1:10. Pregnancy check was done by palpation 15 days after mating. Reproductive management adopted was mating 10 days after delivery and weaning at 30 days of age (semi-intensive). Productivity in maternity was similar between races. Numeric productivity for both races was 31.3 rabbits weaned/cage/year. Does CA showed greatest maternal ability as compared with NZ does, with heavier offspring at birth, at 21 days, and at weaning. Finally, it is suggested that to produce a rabbit for slaughtering, it should use females CA with males NZ, in single or industrial mating.

Aluminium contents in soils from the sugar cane plantation áreas of Pernambuco estate Brazil, are often phytotoxic, specially em subsurfeces. Mineral gypsum has gained growing interest for supplying Ca and demosshing Al saturation, therefore enchancing the root system development. The work was carried out to evaluate the efectts of mineral gypsum applied to on oxisol. The treatments compused five doses of gypsum of two granulometice fraction. For both fractions, gypsum reduced the Al saturation in all the soil. On the other hand, the coarse gypsum was more effective than the fine gypsum one the Al saturation.

The objective of this experiment was evaluate the effect of nitrogen nonproteic (NNP), that is urea and ammonia sulphate, replace to soybean meal in the supplementation of milk cows fed with differed buffel grass and cactus forage. The work was carried out at IPA - Experimental Station in Serra Talhada - PE. Eight cows were fed in a 7.5 ha area, four from the Guzera race and four from the 5/8 Holstein/Zebu. They were supplied with 38 kg of cactus forage (P) and soybean meal (FS), being replaced by urea + ammonia sulphate (U+SA). The experimental design was the Latin Square, and the treatments were P + FS (1.69 kg FS); P + 2/3FS + 1/3U (1.13 kg FS + 97 g U+SA); P + 1/3FS + 2/3U (0.56 kg FS + 195 g U+SA) e P+U (292 g U+SA). The 5/8 Holstein/Zebu cows were more productive than the Guzera, with the production of 7.08 and 7.31 against 4.67 and 5.34 kg/day, respectively, for milk and corrected milk for 4% of fat. There was no difference among the treatments or interaction race x treatment, so that the NNP could substitute soybean meal in the conditions of developed experiment.

Due the necessity to look for alternatives to produce larger amount of quality foods, as well as to develop research that seeks viable solutions for use of waters of the low quality, this work was addressed. The objective was to know the behavior of red earthworm of California when watered with waters of different from salinity for 45 days. The experiment was installed in the earthworm house of UFERSA. The design used was randomized blocks with four treatments and six repetitions. The used treatments were watering waters with four levels of electric conductivities (T1 = 0.5 dS m-1 T2 = 5.0 dS m-1 T3 = 10.0 dS m-1 T4 = 15.0 dS m-1, being T1 originating from local well and the others obtained by the increment of chloride of sodium (NaCl) to the water used in T1. The 24 portions were composed by concrete pitchers containing 1.5 liters of tanned manure and 6 young earthworms of uniform size. The Mass of Head offices Final Average and the Relative Mass of Head offices they didn't suffer significant decrease when the salinity of the watering water increased from 0.5 to 5.0 dS m-1. The watering of earthworms with waters of electric conductivity of up to 5.0 dS m-1 didn't cause any mortality of head offices. The reduction of the Mass of the Final Population went of 1.69 g to each dS m-1 increased in the electric conductivity of the watering water. The Relative Population Growth of earthworms decreased 6,6 times when the electric conductivity of the water increased from 0,5 to 5,0 dS m-1.

This work objectived to evaluate the influence of the calcium levels reduction (0.75 and 0.60%), using two suplemental sources in the diet, limestones of two distinct deposits of calcareous rock (A and B), for female and male broiler chickens in the period between 1 to 28 days of age, and thus, its effect on the performance and the bone development. For such purpose, had been used 288 female and 288 male cobb line broilers, by entirely randomized design in factorial arrangement (2x2x2). The food intake and live weight gain had presented significant differences for the calcium sources, while the calcium level and the sex of the chickens had influenced the feed conversion, the mineralization and the length of the tibia bone. The reduction in the calcium level to 0.75% with the tested limestones, in males and females, provided to satisfactory performance, bone mineralization and calcium retention.

The objective of this work was to evaluate sowing depth and seed dormancy breaking method in the formation of seedlings of the soursup rootstock cv RBR. The experiment was conducted under greenhouse conditions at the orchard of the Lavras Federal University - UFLA. The experimental design was in randomized blocks in a two factors arrangement (4x3), with four replicates and five plants per plot. The dormancy breaking treatments were: witness (control); immersion in water (25 °C for 12 hours); immersion in water (25 °C per 24 hours) and side cut on the seed. The seeds were sowed at 1, 2 and 3 cm of profundity. The characteristics evaluated were germination velocity; germination percentage and after 120 days of sowing the seedlings height (cm); rootsand aerial part fresh matter (g) and roots and aerial part dry matter (g) were also evaluated. There was notinteraction of dormancy brake treatments with the seeds profundity. Seed germination was not influenciated by theprofundity that the seeds were sowed. The side cut on the seed did not provide different results of germination percentage and germination velocity compared to the other treatments, but presented higher of seedlings height.

the research was installed in an experimental area (latitude 6º54'59,88"S, longitude 35º09'17,86"O and altitude of 121,00 m) of Capim II Farm, located in the Municipal of Capim/PB, with objective of evaluating the behavior of the culture of the sugarcane (Saccharum spp.), variety SP 79 1011, as for Leaf Area Index submitted to two factors: sheets of irrigation water and manuring levels with zinc. The experimental design consisted of randomizered blocks (DRB), with three repetitions in factorial outline 5 x 5 analyzed jointly. The irrigation sheets were: without irrigation, 25, 50, 75 and 100% of the Etc considering the respective effective precipitations. The levels of zinc were 0, 1, 2, 3 and 4 kg ha-1. The irrigation equipment used in the research was of the type central pivot fasten. The irrigation sheets influenced the area index significantly to foliate along the cultivation period. The maximum leaf area index of sugarcane it happens to the five months of age; at the end of the year of cultivation the variety SP 79 1011 of sugarcane answered, in a significant way, to the sheets of irrigation water. The differences in relation to the cane irrigated with 100% of the ETc they are respectively: 41,12; 23,37; 22,07 and 24,67%.

This work was carried out to measure the adaptability on the heart rate (HR), respiratory frequency (RF) and rectal temperature (RT) in Boer and Anglo-nubiana goats at Meio-Norte, Brazil. Fourteen male goats were used (7 = Boer and 7 = Anglo-nubiana) in the same conditions. In the same days and times were too collected the temperature and (TA) and relative humidity of the air (UR). The SNK test was used to compare the means. The results obtained to Bôer and Anglo-nubiana was, in dry period, HR (beats/minutes) = 79.3±16.1 and 97.0±18.3; RF (mov.min-1.) = 25.5±5.9 and 34.4±13.3; TR (oC) = 39.2±0.4 and 39.4±0.4. In rain period, in the same breed order HR = 75.1±6.9 and 82.5±6.0; RF (mov./min.-1) = 27.7±4.47 e 26.7±5.5; TR (oC) = 39.3±0,4 and 39.4±0,4. The TA, in oC, and UR, in %, were in the dry period 33.0±1.5 and 55.0±7.43; and in the rain period, 30.0±2.02 and 81.2±6,99. The Anglo-nubiana goats showed the highest HR, RF and RT relative to the Boer goats in the dry and in the rain periods that indicate the Boer goats are better adaptable in the hot stress conditions.