This study evaluated body fat, protein and energy contents nutritional requirements for weight (BW) gain of lambs in tropical semiarid conditions. Thirty-two castrated Santa Inês 3-to-4-month old (initial BW: 15.8 kg ± 1.4 kg) were used. Eight initially slaughtered to serve as the reference initial composition. The remaining 24 animals placed a randomized block with three treatments eight replications. Each one experimental blocks consisted 15 which (daily supplement levels: 0.0, 1.0, 1.5%...

O objetivo deste trabalho foi comparar diferentes técnicas multivariadas na caracterização de 35 genótipos gergelim mediante 769 marcadores RAPD. As distâncias genéticas foram obtidas pelo complemento aritmético do coeficiente Jaccard e agrupadas pelos métodos hierárquicos vizinho mais próximo, distante, das médias aritméticas não ponderadas (UPGMA), método otimização Tocher análises coordenadas principais. agrupamento dos alterado em função usados. Adotando-se a mesma distância genética...

This study compared the performance and meat production of goat kids lambs that were fed semi-arid Caatinga vegetation enriched with buffel grass (Cenchrus ciliaris L.). Twelve crossbred Boer × undefined breed 12 Santa Inês had 20.7 kg body weight (BW) studied. Goat presented greater (P < 0.05) organic matter intake digestibility, total gain, average daily gain (ADG) perirrenal fat to grass. However, morphometric carcass measurements (external leg length; chest rump width; perimeter...

The objective of this work was to compare forage production and quality thorny thornless "jurema-preta" (Mimosa tenuiflora (Willd.) Poiret) in a dense planted stand, subjected annual pruning fine branches, Patos, PB, Brazil. experiment consisted two treatments (thornless "jurema-preta") complete randomized block design, with ten replicates linear plots subdivided time. Forage mass chemical composition branches the basal diameter plants were measured during five years. Pruning decreased...

A Caatinga, vegetação predominante da região semiárida do nordeste Brasil, é formada por plantas com mecanismos eficientes que garantem a sua permanência no ecossistema. Seus estratos herbáceo, arbustivo e arbóreo fornecem alimento para os animais diversos produtos o homem mantêm banco de sementes como reserva recomposição florística. O objetivo deste trabalho foi comparar densidade, composição diversidade três áreas Caatinga manejadas: área plantio craibeiras (A1), degradada (A2)...

The objectives of this study were to quantify the apparent digestibility diet components and performance lambs consuming increasing levels balanced (weight) mixture Opuntia ficus indica bran Mimosa tenuiflora leaves fine branches hay substituting 0, 33 67% Pennisetum purpureum hay, in a 60% roughage fodder 40% concentrate formulated daily live body weight gain 150 g/animal. Experiment was carried out at UFCG facilities, Patos-PB, using 18 non-emasculated with (20.4±1.16) kg (mean weight±SE)....

It was evaluated the effects of different irrigation and nitrogen (N) doses on morphogenesis structural Andropogon grass (Andropogon gayanus cv. Planaltina). The study conducted in period from August to December, 2007 experimental area EMBRAPA Meio-Norte, located city Parnaíba, Piauí, Brazil. treatments consisted two levels (equivalent replacement 50% 80% Class A pan evaporation - ECA) four 200, 400, 600 800 kg N/ha/year) a randomized block design factorial 2 x 4 with three replications....

Objetivou-se com este trabalho avaliar o efeito da dieta e do ambiente sobre as respostas fisiológicas de ovinos em confinamento no trópico semiárido. Foram utilizados 18 machos Santa Inês peso médio inicial 23,85 kg, distribuídos um delineamento blocos casualizados 3x2 tratamentos fatoriais: três dietas (I -dieta 30% concentrado + 70% capim elefante (Testemunha); II- 23,3% palma forrageira & jurema preta 46,7% elefante) III - elefante), dois turnos (manhã tarde). O ITGU registrado foi...

The density and distribution of three tree species local economic importance with, but sometimes without, thorns (Mimosa tenuiflora, Piptadenia stipulacea) or urticating hairs (Cnidoscolus quercifolius) thriving in native seasonally dry tropical forests, were assessed a 43.5-hectare cattle-grazed caatinga remnant, located Patos/Paraíba, Brazil. We recorded georeferenced all the thorny thornless regenerant plants (≥50 cm high circumference at breast height (CBH) < 6 cm). also mature trees...

A faveleira (Cnidoscolus phyllacanthus Pax et K. Hoffm.) é uma xerófita forrageira do semi-árido Nordeste Brasil. presença de espinhos causticantes dificulta a coleta suas ramas, no entatnto mutantes inermes podem ser multiplicados vegetativamente. Este trabalho teve o objetivo determinar um protocolo enxertia por garfagem da sem com enxertos dormentes ou em fase vegetativa enxertados porta-enxertos na vegetativa. As enxertias foram realizadas Viveiro Florestal UFCG, campus Patos, PB,...

Forage supply from herbs was assessed in a thinned Caatinga enriched with buffel grass (Cenchrus ciliaris L.) exposed to goat and sheep grazing. The 2.4 ha experimental area, located at the Experimental Station of Federal University Campina Grande, Santa Terezinha, Paraíba State, Brazil, divided into four 0.6 paddocks, which were further subdivided two 0.3 plots. Twelve F1 (Boer x SRD) goats 12 Inês groups six animals same species. herbaceous vegetation separated L.), dicotyledons other...

The genetic variability among 36 Cnidoscolus phyllacanthus mother trees was estimated to select higher quality genotypes for seedling production. experiment structured in a randomized complete-block design with open-pollinated families four replications. Each plot consisted of 280 cm3 plastic containers one each. Data the collar diameter (CD) and height, number thorns cm-1 main vein leaf, root (RDM), stem, aboveground total dry matter were collected after six months. generally presented...

ABSTRACT The Semiarid region in the Northeast of Brazil is characterized by Caatinga tropical forests, adapted to 8-to-9 months annual water stress. Human activities have resulted environmental degradation due tree removal and soil exposure erosion factors; however, planting native trees, such as Mimosa tenuiflora Cnidoscolus quercifolius, may accelerate recovery. Tree recovery was evaluated a degraded areas under 14-year period grazing exclusion (2005 2019) M. 2009) C. quercifolius (2007...

This study evaluated tree establishment by seeding in manure-enriched substrate or seedling planting holes two experiments carried out Patos (PB), Brazil, degraded Caatinga sites. Experiment one the effects of joint (absence and presence seeding, but no singular any species) four species (Mimosa tenuiflora, Poincianela pyramidalis, Anadenanthera macrocarpa Tabebuia aurea), at levels cattle manure presence) a site protected from grazing. The 2x2 absence addition to soil) factorial experiment...

Cnidoscolus phyllacanthus (faveleira), a caatinga xerophyte Euphorbiaceae tree, produces proteinrich forage consumed by ruminants.It should be used carefully due to urticaceous thorns in leaves, fine branches and fruits, antinutritional substances present fresh material.The narrow gene pool of the few thornless mutants widened additional individuals grown from open-pollinated seeds.This study checked potential six thorny three native trees site produce progenies, estimated proportion their...