Abstract This study examined the impact of maternal protein supplementation during mid-gestation on offspring, considering potential sex-related effects. Forty-three pregnant purebred Tabapuã beef cows (20 female and 23 male fetuses) were collectively managed in a pasture until 100 d gestation. From to 200 gestation, they randomly assigned restricted group [(RES) − basal diet (75% corn silage + 25% sugar cane bagasse mineral mixture); n = 24] or control [(CON) – same based-plant supplement...

O manejo do pastejo permite que sistema com base na utilização de pastagem propicie altos rendimentos por animal e área. Para isto, devem-se utilizar critérios intuito controlar, simultaneamente a qualidade quantidade forragem manter sustentabilidade sistema. A intensidade é dinâmica, jamais permanece mesma, mudando taxa consumo pelos animais também pelo crescimento das plantas, variando hora dia dia, isso deve ser controla sistematicamente. Neste cenário, o parece fator mais explica as...

A 7 year experiment (2008–2014) evaluated cattle grazing intensity (sward height) effects on herbage mass, forage quality, and greenhouse gas emissions in continuously stocked pastures containing the tropical ‘Marandu’ palisade grass (Brachiaria brizantha (Hochst. ex A. Rich) Stapf cv. Marandu). The consisted of three sward height treatments (15, 25, 35 cm) six replicates. There were four periods each during rearing phase. Significant found for proportions leaf stem, crude protein, neutral...

Compaction, often promoted by animal trampling and loss of forage plants, is a main cause soil degradation in pastures. Our objectives were to evaluate various pasture management strategies for maintaining physical quality penetration resistance as an indicator compaction For each strategy, the goal was maintain or extend least limiting water range (LLWR) compressive behavior. Three treatments [Brachiaria (Br); Br intercropped with peanut (Arachis pintoi) (Br + L); fertilized 150 kg N ha−1...

Este experimento foi realizado com o objetivo de avaliar efeito da adubação nitrogenada sobre as características morfogênicas e estruturais Brachiaria decumbens sob pastejo. Os tratamentos consistiram aplicação quatro doses nitrogênio (75, 150, 225 300 kg/ha.ano) antes do início das avaliações experimentais, realizadas em 2002 durante estações verão, outono, inverno primavera. Utilizou-se delineamento blocos completos casualizados, duas repetições. A taxa alongamento folha, comprimento final...

Abstract This study evaluated two potassium sorbate ( PS ) and sodium benzoate SB application rates in improving the aerobic stability of maize silage. Treatments included no additive, addition at 1 2 g kg −1 fresh matter FM . Four replicates each treatment were ensiled 15‐L plastic jars. The silages analysed for their fermentative characteristics subjected to an test with pH yeast mould count measurements. Considering fermentation quality stability, both additives effective. was more active...

Maintenance of mixed grass–legume pastures for stand longevity and improved animal utilization is a challenge in warm-season climates. The goal this study was to assess grazing management on persistence, forage intake, N balance beef heifers Brachiaria brizantha Arachis pintoi. A 2-yr experiment carried out Brazil, where four were assessed: rest period interrupted at 90%, 95%, 100% light interception (LI) fixed 42 d (90LI, 95LI, 100LI, 42D, respectively). LI taken 50 points ground level 5...

Abstract Alternatives need to be addressed for reducing losses in elephant grass ( EG ; Pennisetum purpureum ) silages. Furthermore, smallholders lack information on the nutritional aspects of dairy farms. The aim this study was evaluate total mixed ration silage TMR combining fresh and concentrate ingredients, creating following treatments: (i) (control); (ii) , corn soya bean meal; (iii) corn, meal molasses; (iv) citrus pulp (v) pulp, molasses. Five replicates each treatment were ensiled...

The transformation of pastures from a degraded state to sustainable productivity is major challenge in tropical livestock production. Stoloniferous forage legumes such as Arachis pintoi (forage peanut) are one the most promising alternatives for intensifying pasture-based beef operations with reduced greenhouse gas (GHG) emissions. This 2-year study assessed cattle performance, nutrient intake and digestibility, balance GHG emissions three pasture types (PT): (1) mixed Palisade grass -...

This study aimed to assess the impact of protein supplementation and its interaction with calf sex (CS) on performance, metabolism physiology pregnant beef cows. Fifty-two multiparous Zebu cows carrying female (n = 22) male 30) fetuses were used. Cows individually housed from day 100 200 gestation randomly assigned restricted (RES, n 26) or supplemented (SUP, groups. The RES ad libitum fed a basal diet (corn silage + sugarcane bagasse mineral mixture), achieving 5.5% crude (CP), while SUP...

Abstract A well‐established canopy is crucial for a stable mixed grass–legume forage pasture. The aim of this study was to assess defoliation intensity that can ensure the establishment pasture brachiaria grass ( Brachiaria brizantha ) intercropped with peanut Arachis pintoi ). treatments comprised four heights: 10, 20, 30 and 40 cm, maintained throughout first 3 years establishment. Canopy structure, morphogenetic structural characteristics were measured. block design used replicates,...

Abstract Mixed grass/legume pastures are an alternative to grass monocultures for increased beef cattle production in tropical climates. The objective of this study was evaluate the productivity grazing either a mixed pasture Brachiaria brizantha cv. Marandu and Arachis pintoi (forage peanut) Belomonte or monoculture, under rotational stocking. Five trials were conducted over period nine years north‐eastern Brazil where sward structure (forage, legume mass) animal performance compared...

O manejo do pastejo e a suplementação estratégica permitem maximizar produção de carne bovina em pastagens forma sustentável. A intensidade influencia diretamente o crescimento individual, taxas aparecimento mortalidade perfilhos, determinar acúmulo forragem estrutura dossel. Dessa forma, nas águas, é função adequar frequência desfolhação para que animal possa colher com idade fisiológica valor nutritivo adequados. tamanho dos perfilhos determinam proporção tecidos suporte lignificados...

The objective of this research was to characterize the nutritive value corn silage made on intensive dairy farms and demonstrate nutritional variations between silages located at top center a bunker silo. Thirty-two were visited in four Brazilian states. One silo each farm chosen samples collected from parts. value, fermentation end-products, microbial counts assessed. predicted milk determined by Milk2006 spreadsheet. mean, standard deviation, maximum, minimum, 95% confidence interval all...

This study aimed to assess the effects of maternal protein supplementation and offspring sex (OS) on intake parameters offspring. Forty-three Tabapuã cows were randomly allocated in following treatments: (PS) during days 100-200 gestation (RES, 5.5% total crude (CP), n = 2, or CON, 10% CP, 19) OS (females, 20; males, 23). The evaluated cow-calf (0-210 days), backgrounding (255-320 growing 1 (321-381 2 (382-445 days) phases. CON tended present higher dry matter (DMI) at weaning (p 0.06)....

Abstract The use of forage legumes to contribute biologically fixed nitrogen (N) pastures is an alternative increase beef cattle production in tropical regions. objective was compare the impact introduction a legume with that N fertilizer application on and animal Brachiaria pastures. This two‐year study assessed three pasture treatments: (1) mixed Marandu palisadegrass ( brizantha [syn. Urochloa ] cv. Marandu) “ovalifolium” Desmodium ovalifolium ) Itabela (Mixed), (2) 150 kg ha −1...

The objective of this study was to evaluate the performance beef heifers on Stapf. cv. Marandu grass pastures that were managed at three herbage allowances under continuous grazing with a variable stocking rate and provided mineral mix supplement or supplements energy protein. Seventy-two test 48 put-and-take used in randomised design 3 × 2 factorial arrangement [three (1.5, 2.0, 2.5 kg green dry matter/kg bodyweight, two supplementation levels (mineral 0.3% bodyweight mineral–protein–energy...

Abstract This study determined the effectiveness of two L actobacillus buchneri strains (commercial and indigenous) sodium benzoate ( SB ) in improving aerobic stability corn silage under laboratory field conditions. Two experiments were carried out to test following treatments: untreated forage, commercial . CLB ), indigenous ILB at a 2 g kg −1 concentration. Both inoculants applied rate 1 × 10 6 colony forming units bacteria per gram forage. In experiment 1, five replicates each treatment...

Abstract Nitrogen (N) inputs to pasture systems coupled with grazing management strategies based on monitoring and control of canopy structure may provide conditions for greater productivity enhanced forage nutritive value. This 2‐year study assessed value responses three treatments, namely, (1) mixed Marandu palisadegrass ( Brachiaria brizantha [Hochst. ex A. Rich.] R.D. Webster [syn. Urochloa Stapf]) cv. peanut Arachis pintoi Krapov. & W.C. Greg.) BRS Mandobi pastures without N...

Abstract The lack of nitrogen (N) input on pastures is the main limiting factor to increase animal performance in tropical regions. This 2.5‐year study assessed performance, forage intake and digestion, N metabolism responses three pasture treatments: (1) mixed Marandu palisadegrass— Brachiaria brizantha (Hochst. ex A. Rich.) R.D. Webster (syn. Urochloa Stapf cv. Marandu)—and peanut ( Arachis pintoi Krapov. & W.C. Greg. BRS Mandobi) (GRASS + LEGUME), (2) monoculture palisadegrass with...