scholarly journals Dry matter productivity and bromatological quality of ryegrass genotypes cultivated in southern Brazil

2021 ◽  
Vol 73 (1) ◽  
pp. 247-255
Author(s):  
A.R. Ramos ◽  
A. Zampar ◽  
A.W.L. Silva
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Warm Season ◽  
Neutral Detergent Fiber ◽  
Short Term ◽  
Randomized Block Design ◽  
Feeding Systems

ABSTRACT The goal of this work was to assess the biomass production and bromatological quality of ryegrass genotypes in ten municipalities of the Western and North Plateau regions of the State of Santa Catarina, Brazil. The cultivars La Estanzuela 284 (diploid), Bar HQ, Barjumbo, INIA Escorpio, Potro, and Winter Star (tetraploids) were compared, distributed in a randomized block design, in which the municipalities constituted the blocks, with three replications. The cuts were performed when the plants reached 30cm, leaving a residue of 10cm. In three cuts, the cultivars Barjumbo and Bar HQ were the most productive, exceeding 4.6 t ha-1 of dry matter. In the places in which five cuts were performed, the production of these cultivars exceeded 7.3 t ha-1, placing them again ahead of the others. The average crude protein content in three cuts was greater than 25% in all cultivars. There was no difference between the genotypes in the content of neutral detergent fiber and total digestible nutrients. There was a significant correlation between quantitative and qualitative productive variables. The assessed cultivars represented good options for composing short-term or long-term winter-feeding systems, adjusted to the integration with annual crops or warm-season pastures.

scholarly journals The Residue of Seed Harvest From Tropical Grasses as a Roughage Source in the Feedlot Lambs Diet

2019 ◽  
Vol 7 (2) ◽  
pp. 212
Author(s):  
Camila Celeste Brandão Ferreira Ítavo ◽  
Luis Carlos Vinhas Ítavo ◽  
Cacilda Borges do Valle ◽  
Alexandre Menezes Dias ◽  
Gelson Do Santos Difante ◽  
...  
Keyword(s):  
Nutrient Intake ◽  
Food Systems ◽  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Neutral Detergent Fiber ◽  
Tropical Grasses ◽  
Randomized Block Design ◽  
Seed Harvest ◽  
Feedlot Lambs

Our hypothesis was whether the residue of seed harvest from tropical grasses (Brachiaria sp. and Panicum sp.) as roughage source might result in the similar performance of lambs confined to obtain sustainability in agricultural and food systems by use of this by-product. This study was aimed to evaluate the effects of the residue of seed harvest (straw-hay) from tropical grasses as a roughage source in the feedlot lamb diet on intake, digestibility, performance, carcass characteristics and meat quality. The randomized block design used 36 lambs (six animals per treatment) distributed in six treatments arranged in individual cages on performance assay. The offered straw-hay did not influence nutrient intake and digestibility. Chewing was influenced by straw-hays. In addition, an effect was not observed on the length of the carcass, length of the leg, width and perimeter of the croup, depth of the chest or weight of the left half of the carcass. The averages of gammon, palette and neck yields were considered satisfactory, which may have been caused by the high content of neutral detergent fiber that was offered (511.4 g/Kg for Tupi and 617.6 g/Kg for Basilisk), and the weight of the palette and gammon can result in high commercial value. The meat characteristic was affected by a straw-hay. Diets containing residue of seed harvest from tropical grasses (Brachiaria sp. and Panicum sp.) as a roughage source did not have any effect on the dry matter and crude protein consumption and on the growth performance. So, we recommend the residue of seed harvest from tropical grasses as a fiber source to feedlot lamb diet.

scholarly journals Hay Tifton 85 grass under nitrogen doses in different days of regrowth

2018 ◽  
Vol 40 (1) ◽  
pp. 37692 ◽  
Author(s):  
Weudes Rodrigues Andrade ◽  
Eleuza Clarete Junqueira de Sales ◽  
Flávio Pinto Monção ◽  
Virgílio Mesquita Gomes ◽  
Leidy Darmony de Almeida Rufino ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Quadratic Function ◽  
Neutral Detergent Fiber ◽  
Dry Matter Production ◽  
Dry Matter Yield ◽  
Randomized Block Design ◽  
Matter Production

The objective of this study was to evaluate the yield, nutritional value and potential ruminal degradation of Tifton 85 hay (Cynodon spp.) harvested at four regrowth ages (28, 35, 42 and 49 days) and fertilized with two nitrogen doses (N; 100 and 300 kg N ha-1). The experimental design was a randomized block design, arranged in a 4 x 2 factorial scheme, with six replications each. Nitrogen fertilization increased (p < 0.05) dry matter yield and digestible dry matter production of hay and also lignin and crude protein contents. Nitrogen fertilization increased (p < 0.01) the dry matter yield and the digestible dry matter production of hay, as well as lignin (p = 0.01) and crude protein (p = 0.01). The neutral detergent fiber corrected for ash and protein (p = 0.01), acid detergent fiber (p = 0.01) and cellulose (p = 0.02) adjusted to the quadratic function regression model of the regrowth ages. For potential rumen degradability hay, it was observed quadratic effect (p = 0.01) with maximum value of 73.1% at 37 days of regrowth. Tifton 85 hay fertilized with 300 kg ha -1 of N and harvested up to 37 days of regrowth results in higher hay dry matter yield, higher crude protein content, and better dry matter rumen degradability. 

scholarly journals Optimization tifton-85 grass cutting for productivity and nutrient value

2021 ◽  
Vol 37 ◽  
pp. e37009
Author(s):  
Daniel Ottoni ◽  
Alex de Matos Teixeira ◽  
Lúcio Carlos Gonçalves ◽  
Naiara Taís Alves Da Silva ◽  
Diego Soares Gonçalves Cruz ◽  
...  
Keyword(s):  
Rainy Season ◽  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Nutritional Composition ◽  
Neutral Detergent Fiber ◽  
Randomized Block Design ◽  
Random Block ◽  
Random Block Design ◽  
The Impact

The objective of this work was to determine the impact of cutting Tifton-85 grass at 14, 28, 42, 46, 70, and 80 days of regrowth on its production and nutritional characteristics during the rainy season. The study area of 238 m2 was divided into four sub-area, with 6 plots of 2 × 2 m spaced 1 m between plots and 2 m between sub-area. Random block design was used. The statistical analyses were performed following a randomized block design. Results were obtained as means from evaluations conducted in two consecutive years. The neutral detergent fiber (NDF) and acid detergent fiber (ADF) increased as the cutting age increased. However, crude protein, NDF nitrogen, ADF nitrogen and leaves/stem relationship decreased as the cutting age increased. The production of digestible dry matter increased linearly as the cutting age increased. Similarly, grass height, green matter and dry matter production (DMP) increased as the cutting age increased. The different cutting age did not influence the nitrogen A, B1 + B2, and B3 fractions of the grass. However, the C fraction increased as the cutting age increased. Longer intervals between cuts increased the grass productivity per cut, but compromised its nutritional composition and leaves/stem relationship. For Tifton -85, the regrowth age of 28 days allows greater production of dry matter and greater accumulated production of crude protein and digestive dry matter in the rainy season or over time.

scholarly journals Forage yield and quality of a dense thorny and thornless "jurema-preta" stand

2007 ◽  
Vol 42 (3) ◽  
pp. 341-347 ◽  
Author(s):  
Ivonete Alves Bakke ◽  
Olaf Andreas Bakke ◽  
Alberício Pereira Andrade ◽  
Ignacio Hernan Salcedo
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Forage Yield ◽  
Crude Protein Content ◽  
Forage Production ◽  
Basal Diameter ◽  
Yield And Quality ◽  
Randomized Block Design

The objective of this work was to compare forage production and quality of thorny and thornless "jurema-preta" (Mimosa tenuiflora (Willd.) Poiret) in a dense planted stand, subjected to annual pruning of fine branches, in Patos, PB, Brazil. The experiment consisted of two treatments (thornless and thorny "jurema-preta") in a complete randomized block design, with ten replicates of two linear plots subdivided in time. Forage mass and chemical composition of fine branches and the basal diameter of plants were measured during five years. Pruning decreased (p<0.05) increments in basal diameter and forage production. Annual dry matter yields reached 4,108 and 5,833 kg ha-1, respectively, for thornless and thorny plants, and forage quality was similar (p>0.05) for both genotypes. This roughage fodder (minimum NDF and ADF averages were 56±1.1% and 43±1.0%, respectively) had low P and K concentrations. Its average crude protein content was greater than 9.9±0.5%, which exceeds the minimum necessary for animal maintenance. Both "jurema-preta" genotypes tolerated pruning of fine branches and contributed with a significant amount of roughage fodder for animal maintenance in the dry season.

scholarly journals Effect of zinc sources and experimental conditions on zinc balance in growing wethers

2022 ◽  
Author(s):  
C Lee ◽  
J E Copelin ◽  
M T Socha
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Latin Square ◽  
Basal Diet ◽  
Neutral Detergent Fiber ◽  
Dry Matter Intake ◽  
Experimental Conditions ◽  
Randomized Block Design ◽  
Zinc Balance

Abstract Three experiments were conducted with growing wethers to evaluate apparent excretion and retention of Zn from various sources. In Exp. 1 and 2, Zn-ethylene diamine (ZE), Zn hydroxychloride (ZHYD), Zn-lysine/glutamate (ZAA), and Zn-glycinate (ZG) were used and ZnSO4 (ZS), Zn hydroxychloride (ZHYD), Zn-lysine/glutamate (ZAA), and Zn-glycinate (ZG) were used in Exp. 3. In Exp. 1, 8 wethers were used in a replicated 4 × 4 Latin Square design. In Exp. 2 and 3, 40 wethers were used in a randomized block design. In Exp. 1, each period (total 4 periods) consisted of 14-day diet adaptation and 4 days of total collection of feces and urine. In Exp. 2 and 3, wethers received a basal diet for 14 days and received experimental diets for 9 days (diet adaptation), followed by 4 days of total collection of feces and urine. Total collection was conducted in wooden metabolic cages. All data were analyzed using the MIXED procedure of SAS as a Latin square design for Exp. 1 and a completed randomized block design for Exp. 2 and 3. In all experiments, dry matter intake did not differ among treatments except that it tended to be different in Exp. 2. In Exp. 1, no difference in Zn excretion (88%) and retention (11%) as proportion of Zn intake was observed among Zn sources. In Exp. 2, total tract digestibility of crude protein was greater (P &lt; 0.01) for ZAA than ZE and ZG (82.0 vs. 79.1 and 77.8%, respectively) and greater (P &lt; 0.01) for ZHYD than ZG (80.2 vs. 77.8%). However, total tract digestibility of neutral detergent fiber was low (on average 16%) for all treatments with no difference among treatments in Exp. 2. Apparent excretion and retention of Zn as proportion of Zn intake did not differ among treatments, and Zn retention (~1.4% of Zn intake) was very low for all treatments. In Exp. 3, ZHYD and ZAA had greater retention of Zn (17.8 vs. 1.5%; P = 0.01) than ZG. Fecal Zn excretion was greater (97.3 vs. 81.2%; P = 0.01) for ZG vs. ZHYD and ZAA, and Zn retention for ZG was only 1.5% of Zn intake. In conclusion, potential increases in Zn absorption and retention were observed for ZHYD and ZAA compared with ZS and ZG in Exp. 3 and these differences were not found in Exp. 1 and 2. Experiment 1 used a Latin square design and Exp. 2 used a diet containing largely undigestible fiber. These experimental conditions may have affected Zn metabolism in wethers. Inconsistent results on Zn balance for ZG among the experiments warrant further studies regarding its bioavailability.

scholarly journals Predicting the metabolizable energy of first and second corn harvests for piglets

2017 ◽  
Vol 41 (6) ◽  
pp. 683-691 ◽  
Author(s):  
Lucas Antonio Costa Esteves ◽  
Newton Tavares Escocard de Oliveira ◽  
Laura Marcela Diaz Huepa ◽  
Silvia Letícia Ferreira ◽  
Leandro Dalcin Castilha ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Metabolizable Energy ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Randomized Block Design ◽  
Gross Energy ◽  
Swine Diets ◽  
Best Fit

ABSTRACT Corn is one of the primary ingredients in swine diets, but there is a variation in its chemical composition and metabolizable energy (ME) content. Therefore, faster methods are required that can determine more accurate ME values to improve piglet diets. This study determined and predicted the ME of corn from first and second harvests for piglets. Two experiments were conducted to determine the ME values for 18 corn batches, evaluating corn from first and second harvests. The corn batches were analysed to determine the concentration of dry matter (DM), starch (ST), neutral detergent fiber (NDF), acid detergent fiber (ADF), crude protein (CP), ether extract (EE), ash, calcium (Ca), phosphorus (P) and gross energy (GE). To determine the ME values, 40 piglets were used in each experiment, grouped into a randomized block design with four replicates. The ME of the corn from the first and second crops ranged from 3281 to 3509 and from 3143 to 3652 kcal/kg on an as-fed basis, respectively, and the fitted equations to predict the ME presented a low R2. The best fit equation for predicting the ME of corn for piglets was determined to be ME= - 6306.15 + 400.652ADF + 117.286ST + 24924.7Ca + 2489.66P - 148.41CP (R2=0.44) for the first harvest; ME= -7560.08 + 2.66895GE - 120.69ADF (R2=0.48) for the second harvest; and ME= 2848.95 + 68.5714NDF + 161.938EE - 5563.5Ca - 1454.2P (R2=0.41) for the joint harvest.

scholarly journals Nutritional value of sorghum silages

2017 ◽  
Vol 39 (2) ◽  
pp. 137
Author(s):  
Marielly Maria Almeida Moura ◽  
Daniel Ananias de Assis Pires ◽  
Renê Ferreira Costa ◽  
Daniella Cangussú Tolentino ◽  
João Paulo Sampaio Rigueira ◽  
...  
Keyword(s):  
Crude Protein ◽  
Block Design ◽  
Significance Level ◽  
Dry Matter Digestibility ◽  
Randomized Block Design ◽  
Nutritional Characteristics ◽  
High Participation ◽  
Sorghum Genotypes

 This study aimed to evaluate the nutritional characteristics and quality of silages of five sorghum genotypes, namely: Volumax, AG2005E, Qualimax, BRS610 and AG2501. The study was conducted at the Experimental Farm Unimontes, in the municipality of Janaúba, state of Minas Gerais. The treatments were distributed in a randomized block design with four replicates. Data were tested by analysis of variance andmeans were compared by Scott-Knott test at a significance level of 5%. The pH values ranged from 3.93 and 4.10. Genotypes differed in all studied nutritional characteristics (p < 0.05). For the acid detergent fiber, differences were detected between the genotypes, AG2501 (35.66%), Volumax (34.89%), AG2005E (34.53%), Qualimax (32.39%) and BRS610 (33.60%). The high participation of lignin was verifiedin all genotypes except for Volumax (4.14%). All silages were within the recommended range 50-65% for in vitro dry matter digestibility and classified as having good quality, however only the AG2005E genotype met nitrogen requirements for microbial fermentation, with 7.06% crude protein. 

scholarly journals COCONUT MEAL INCLUSION IN HIGH CONCENTRATE SHEEP DIETS AFFECTS FEED DIGESTIBILITY AND INTAKE1

2021 ◽  
Vol 34 (3) ◽  
pp. 692-701
Author(s):  
PAULA FABRINY MAUÉS DA SILVA ◽  
SARAH OLIVEIRA SOUSA PANTOJA ◽  
FELIPE NOGUEIRA DOMINGUES ◽  
ANIBAL COUTINHO DO RÊGO ◽  
CRISTIAN FATURI
Keyword(s):  
Soybean Meal ◽  
Crude Protein ◽  
Low Cost ◽  
Block Design ◽  
Control Diet ◽  
Neutral Detergent Fiber ◽  
Feed Digestibility ◽  
Randomized Block Design ◽  
Body Weights ◽  
Coconut Meal

ABSTRACT Coconut meal can be an affordable low-cost alternative to noble ingredients such as corn and soybean meal in sheep diets. The objective of this study was to evaluate the effects of coconut meal inclusions, when used as a corn and soybean meal replacement, on the intake, digestibility, and nitrogen balance of sheep diets. Twenty-four male Santa Inês lambs with body weights (BW) of 26.6 ± 3.2 kg were used in the study. The animals were housed in metabolic cages and distributed in a completely randomized block design, with three treatments and eight replications. The animals received a total mixed ratio of 30% roughage (elephant grass) and 70% concentrate. The animals were fed on two experimental diets with 11% and 22% coconut meal inclusion and a control diet (without coconut meal). Dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), and non-fibrous carbohydrate (NFC) intake as a percentage of BW were negatively influenced by the inclusion of coconut meal. The ether extract (EE) intake increased but did not differ between the 11% and 22% coconut meal diets. Furthermore, the digestibility of DM, CP, EE, and ADF did not differ between the two evaluated diets. The inclusion of coconut meal reduced NDF digestibility and increased that of NFC. The level of inclusion of coconut meal in the diet must be based on the EE content in the meal; keeping the EE intake below 0.16% of the BW helped to avoid limited intake of feed.

scholarly journals Kecernaan Nutrien pada Babi Lokal Periode Pertumbuhan yang Diberi Ransum Mengandung Biji Asam Biokonversi Spontan (NUTRIENTS DIGESTIBILITY IN GROWING LOCAL PIG FED WITH DIET COMPOSED OF SPONTENOUS BIOCONVERTED-TAMARIND SEED)

2018 ◽  
Vol 18 (4) ◽  
pp. 610
Author(s):  
Redempta Wea ◽  
I Gusti Komang Oka Wirawan ◽  
Bernadete Barek Koten
Keyword(s):  
Body Weight ◽  
Crude Protein ◽  
Dry Matter ◽  
Animal Feed ◽  
Block Design ◽  
Nutrient Digestibility ◽  
Tamarind Seed ◽  
Randomized Block Design ◽  
Range Test ◽  
Nutrients Digestibility

A research aimed to evaluate nutrients digestibility in growing local male pig fed spontaneous bioconverted-tamarind seed has been done in animal feed technology laboratory of Kupang State Agricultural Polytechnic.The research used 25 local male grower pigs with body weight around 3-6 kg. The study used a randomized block design with five treatments, i.e. R0 = ration using tamarind seeds without bioconversion, R1 = ration using spontaneous bioconversion tamarinds for 24 hours, R2 = rations using spontaneous bioconversion tamarinds for 48 hours, R3 = rations using bioconversion tamarinds spontaneous for 72 hours, and R4 = rations using spontaneous bioconversion tamarinds for 96 hours. Each treatment was repeated five times in which each of them used five pigs. Parameters observed were nutrient digestibility (dry matter, crude protein, crude fat, crude fiber, and ash). The data were analyzed by using variance and continued by Duncan’s multiple range test to determine the differences between treatments. The results showed that the time of spontaneous bioconversion of tamarind seeds increased the digestibility of tamarind seed nutrients and it was concluded that the best time of spontaneous bioconversion was for 72 hours.

scholarly journals Nutritional quality of massai grass fertilized with phosphorus and nitrogen and its influence on intake and weight gain of sheep under rotational grazing on quartzipsamment soil

2017 ◽  
Vol 38 (3) ◽  
pp. 1427
Author(s):  
Thais Valéria Souza Silva ◽  
Luciano Fernandes Sousa ◽  
Antônio Clementino dos Santos ◽  
Ana Cristina Holanda Ferreira ◽  
Rebeca Rocha Cardoso ◽  
...  
Keyword(s):  
Weight Gain ◽  
Nutritional Quality ◽  
Dry Matter ◽  
Management Practice ◽  
Block Design ◽  
Neutral Detergent Fiber ◽  
Dry Matter Intake ◽  
Panicum Maximum ◽  
Significant Difference

The effects of phosphate and nitrogen fertilization on aspects of forage composition and ruminal fermentation were separately evaluated pre- and post-grazing, in addition to the dry matter intake and weight gain of sheep grazing Panicum maximum cv. Massai under a rotational system on Quartzipsamment soil. The aim was to evaluate the effect of fertilization with different levels of phosphorous (50 and 200 kg P2O5/ha) and nitrogen (100 and 400 kg N/ha) compared to unfertilized control soil. The experiment was conducted at the School of Veterinary Medicine and Animal Science at Universidade Federal do Tocantins – UFT, in a randomized complete block design with four replicates in a factorial 2 × 2 design. The study area consisted of 32 paddocks (301 m²), each of which had previously been sown with Panicum maximum cv. Massai. The experimental area was managed under intermittent stocking with a variable stocking rate. Twenty-eight crossbreed sheep were used for grazing management. Evaluations were made before and after grazing, including forage evaluation and measurement of ruminal degradability and intake (using titanium dioxide as the external marker). Regarding the forage composition, a significant difference (P < 0.05) was observed between the control and fertilizer treatments for neutral detergent fiber (NDF), acid detergent fiber, crude protein, lignin and phosphorous content. Fertilization was found to alter the nutritional quality of Panicum maximum cv. Massai grass. Among the nutritional aspects evaluated, fertilization influenced NDF, grass digestibility and dry matter intake. The forage composition of Massai grass is improved by fertilization with nitrogen at 100 kg N/ha and phosphate up to 50 kg P2O5/ha, which represents a relevant management practice for increasing quantity and quality.

Sign in / Sign up

Export Citation Format

Share Document