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| Registros recuperados: 26 | |
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| Ramírez Mella, Mónica. |
| El objetivo de este estudio fue evaluar el efecto de suplementar con maíz fresco picado (MFP) a vacas lecheras en pastoreo en la respuesta productiva. Se utilizaron 24 vacas Holstein multíparas. El pastoreo fue rotacional en una pradera mixta alfalfa-pasto ovillo. Se evaluaron tres tratamientos: 0, 4 y 8 kg de MS de MFP animal-1día-1. Todos los animales recibieron 3.8 kg de MS de alimento concentrado animal-1 día-1. Se utilizó un diseño reversible simple (cross-over) (tres tratamientos, dos repeticiones con cuatro animales cada uno), de 3 períodos, con una duración de 19 días cada uno (10 d de adaptación y 9 d de muestreo). No hubo diferencias significativas en producción individual ni en composición de la leche. El consumo de forraje de la... |
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Palavras-chave: Producción de leche; Consumo de materia seca; Carga animal milk production; Dry matter intake; Stocking rate. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/838 |
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| Ramírez Mella, Mónica. |
| El objetivo de este estudio fue evaluar el efecto de suplementar con maíz fresco picado (MFP) a vacas lecheras en pastoreo en la respuesta productiva. Se utilizaron 24 vacas Holstein multíparas. El pastoreo fue rotacional en una pradera mixta alfalfa-pasto ovillo. Se evaluaron tres tratamientos: 0, 4 y 8 kg de MS de MFP animal-1día-1. Todos los animales recibieron 3.8 kg de MS de alimento concentrado animal-1 día-1. Se utilizó un diseño reversible simple (cross-over) (tres tratamientos, dos repeticiones con cuatro animales cada uno), de 3 períodos, con una duración de 19 días cada uno (10 d de adaptación y 9 d de muestreo). No hubo diferencias significativas en producción individual ni en composición de la leche. El consumo de forraje de la... |
| Tipo: Tesis |
Palavras-chave: Producción de leche; Consumo de materia seca; Carga animal; Maestría; Ganadería; Milk production; Dry matter intake; Stocking rate. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1232 |
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| Ramírez Mella, Mónica. |
| El objetivo de este estudio fue evaluar el efecto de suplementar con maíz fresco picado (MFP) a vacas lecheras en pastoreo en la respuesta productiva. Se utilizaron 24 vacas Holstein multíparas. El pastoreo fue rotacional en una pradera mixta alfalfa-pasto ovillo. Se evaluaron tres tratamientos: 0, 4 y 8 kg de MS de MFP animal-1día-1. Todos los animales recibieron 3.8 kg de MS de alimento concentrado animal-1 día-1. Se utilizó un diseño reversible simple (cross-over) (tres tratamientos, dos repeticiones con cuatro animales cada uno), de 3 períodos, con una duración de 19 días cada uno (10 d de adaptación y 9 d de muestreo). No hubo diferencias significativas en producción individual ni en composición de la leche. El consumo de forraje de la... |
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Palavras-chave: Producción de leche; Consumo de materia seca; Carga animal milk production; Dry matter intake; Stocking rate. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/918 |
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| 本江, 昭夫; HONGO, Akio. |
| In the Himalayas, domesticated yak is fed at an altitudinal range of 3,000 to 5,000m. Below this zone, the cow is more common. Hybrids are fed at an intermediate zone. In order to analyze the genetic basis of milk protein variation, milk samples were taken from the nak (female yak), cow and their hybrid. By principle component analysis, yak and a highland type of cow (kirmcome) were clearly distinguished from midland (shakzam) and lowland (palang) cows. Local Sherpa people may produce suitable animals for each zone by controlling animal reproduction systems. Generally speaking, a sustainable stocking rate is two adult animals per hectare in the central Himalayas. However, most pastures were overgrazed 3 to 10 times more than this level. The feedstuff... |
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Palavras-chave: Cow; Fodder tree; Hybrid; Stocking rate; Yak; ウシ; 飼料木; 雑種; 放牧圧; ヤク. |
| Ano: 1996 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3006 |
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| Ferreira,Camila Jorge Bernabé; Tormena,Cássio Antonio; Cecato,Ulysses; Franco,Hélio Henrique Soares; Moreira,Wagner Henrique; Galbeiro,Sandra; Ribeiro,Ossival Lolato. |
| Abstract: The objective of this work was to evaluate the physical properties of a soil with a 'Tanzânia' grass (Megathyrsus maximus) pasture fertilized with mineral nitrogen or intercropped with the legume 'Campo Grande' (Stylosanthes spp.), and subjected to continuous grazing and variable stocking rate, in a three-year chronosequence. The treatments were: 'Tanzânia' grass and Stylosanthes; and 'Tanzânia' grass fertilized with 75, 150, and 225 kg ha-1 N per year. The experiment was carried out in an Oxisol, in a randomized complete block design with three replicates, in split plots divided according to time (first, second, and third experimental years). The following soil properties were assessed annually: soil bulk density, porosity in the soil macropore... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Panicum maximum; Stylosanthes; Soil penetration resistance; Stocking rate. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400478 |
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| Khairo, Salahadin A.; Norton, Mark R.; Garden, P.; Graham, Phil; Langford, Colin; Armstrong, P.; Brassil, T.. |
| Soil acidification is one of the major forms of soil degradation in higher rainfall areas of the tablelands of NSW. A grazing experiment was conducted near Sutton, NSW, to assess the effect of various rates of superphosphate, lime, sewage ash and stocking rates on wool production and sustainability between 1999 and 2008. The results from the discounted cash flow analysis show that the net present value of the treatment without lime, the lower rate of superphosphate and the lowest stocking rate returned the highest net present value of $266.30/ha. Raising the application of superphosphate from 125kg/ha every two to three years to 250kg/ha every year on un-limed and limed soil reduced the net present value by $278.70/ha and $249.30/ha, respectively. The... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Economic; Acid soil; Lime; Superphosphate; Sewage ash; Stocking rate; Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/47939 |
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| Khairo, Salahadin A.; Norton, Mark R.. |
| Soil acidity is one of the major farm management problems on the Southern Tablelands of NSW. Soil acidity occurs naturally and yet some agricultural practices exacerbate the process through nitrification, leaching, removal of produce and accumulation of organic matter in the soil. A grazing experiment was conducted between 1999 and 2008 near Sutton, NSW, to assess the impact of various combinations of lime and superphosphate application, and stocking rates, on the profitability and sustainability of wool production on the Southern Tablelands. The profitability of 15 alternative experimental treatments was assessed using the discounted cash flow analysis method for a Merino wether enterprise. The results revealed that the highest net present value was... |
| Tipo: Article |
Palavras-chave: Lime; Superphosphate; Profitability; Stocking rate; Farm Management. |
| Ano: 2010 |
URL: http://purl.umn.edu/120866 |
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| Silva,Cláudio José Araújo da; Fernandes,Sergio Rodrigo; Silva,Marina Gabriela Berchiol da; Monteiro,Alda Lúcia Gomes; Poli,César Henrique Espírito Candal; Prado,Odilei Rogerio; McMannus,Concepta; Gilaverte,Susana. |
| The influence of early weaning and concentrate supplementation strategies on sward characteristics, forage chemical composition and lamb productivity were evaluated in four production systems on Tifton-85 pasture: suckling lambs not supplemented until slaughter; suckling lambs supplemented with concentrate in creep feeding until slaughter; early-weaned lambs not supplemented until slaughter; and early-weaned lambs supplemented with concentrate until slaughter. Structural, morphological and productive characteristics of pasture were measured. The forage was chemically analyzed to estimate its composition. Lambs average daily gain and productivity were calculated. Sward height, forage and morphological components mass were lower in systems without weaning.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Creep feeding; Leaf:stem ratio; Productivity; Stocking rate. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800428 |
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| Adami,Paulo Fernando; Soares,André Brugnara; Assmann,Tangriani Simione; Assmann,Alceu Luiz; Sartor,Laércio Ricardo; Pitta,Christiano Santos Rocha; Franchin,Marcia Fernanda; Migliorini,Francisco. |
| This work aimed to evaluate the effects of grazing intensities and nitrogen fertilization levels on the dynamics of a Brachiaria plantaginea pasture. The experiment was laid out as a random block design, in a 3 × 2 factorial scheme, composed of three nitrogen levels (0, 200 and 400 kg/ha nitrogen in urea form) and two grazing intensities termed low mass (LM; forage mass of 1500 kg of DM/ha) and high mass (HM; forage mass of 3000 kg of DM/ha) in a continuously stocked swards with two replications. Animals used were half-blood Boer goats averaging five months old and 21 kg body weight (BW) for adjustment of the target forage mass. Real forage mass, average height of the plants and animal stocking rates were of 2,567 and 3,862 kg DM/ha; 23.6 and 31.2 cm and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria plantaginea; Forage production; Forage nutritive value; Forage sward; Reseeding; Stocking rate. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001200003 |
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| Euclides,Valéria Pacheco Batista; Montagner,Denise Baptaglin; Barbosa,Rodrigo Amorim; Valle,Cacilda Borges do; Nantes,Nayana Nazareth. |
| ABSTRACT The objective of the present study was to evaluate live weight gain per animal and per area and its relationship with the characteristics of pastures of Brachiaria brizantha cv. Paiaguás and Piatã. A randomized blocks experimental design was used, with two treatments and six replicates. The experimental area was 8.0 ha, divided into twelve paddocks of 0.67 ha. The grazing method used was continuous stocking, with variable stocking rate. Three tester steers were used per paddock. Sward heights were measured once a week, and the stocking rate (SR) was adjusted using regulator steers to maintain the sward height at 30 cm. Pasture samples were collected once a month, and herbage accumulation rate (HAR), percentage of leaves (PL), leaf:stem ratio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Canopy structure; Herbage accumulation; Nutritive value; Stocking rate. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000300085 |
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| Euclides,Valéria Pacheco Batista; Nantes,Nayana Nazareth; Montagner,Denise Baptaglin; Araújo,Alexandre Romeiro de; Barbosa,Rodrigo Amorim; Zimmer,Ademir Hugo; Valle,Cacilda Borges do. |
| ABSTRACT The objective of this two-year study was to evaluate live weight gain per animal and per area and their relationships with the characteristics of BRS Ipyporã (Brachiaria ruziziensis × Brachiaria brizantha) and Marandu (Brachiaria brizantha) pastures. A completely randomized block design was used with two treatments and four replicates. The grazing method was rotational stocking, with variable stocking rate. Stocking rate was adjusted twice a week during the grazing period (six or seven days) and post-grazing canopy height target of 15 cm. Animals were weighed every 28 days. Pastures were evaluated pre-grazing to estimate forage accumulation rate, forage mass (FM), leaf (LP) and stem (SP) percentages, and nutritive value. In the post-grazing, FM,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canopy structure; Forage accumulation; Nutritive value; Stocking rate. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100304 |
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| Brambilla,Daniel Martins; Nabinger,Carlos; Kunrath,Taise Robinson; Carvalho,Paulo César de Faccio; Carassai,Igor Justin; Cadenazzi,Mónica. |
| The overseeding of ryegrass (Lolium multiflorum Lam) on sub-tropical native pastures increases the availability and quality of forage in the cold season. However, soil chemical amendment and nitrogen use can affect the floristic composition, with consequences to the primary and secondary production. In a randomized complete block design with three replications, the effect of nitrogen fertilization (40, 90 and 140 kg/ha of nitrogen) on native pasture overseeded with ryegrass in two consecutive years was assessed regarding production and composition of pasture and performance of beef calves. In both years, the forage accumulation rate and forage production responded linearly to the increase in nitrogen rates as a result of increased participation of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Forage accumulation rate; Lolium multiflorum; Stocking rate. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300008 |
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| Lampert,Vinícius do Nascimento; Canozzi,Maria Eugênia Andrighetto; McManus,Concepta Margaret; Dill,Matheus Dhein; Oliveira,Tamara Esteves de; Mercio,Thomaz Zara; Teixeira,Odilene de Souza; Barcellos,Júlio Otávio Jardim. |
| ABSTRACT Traditional livestock productivity is hard to estimate, since it depends on a gamut of animal production indicators that are difficult to measure for many farms. Thus, we propose an analytical method for estimating productivity and understanding the importance of animal production indicators under different full-cycle cattle production systems in Brazil. To evaluate the impact of these indicators, equations were derived from a comutational model of herd evolution for estimating the output parameters of the system as follows: productivity per hectare (PH) and offtake rate (COR), as a function of the indicators; calving rate (CR), mating age (AM), age of slaughter (AS) and stocking rate (SR). For this analysis, twenty-seven scenarios (simulation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adoption of technology; Animal production; Management; Stocking rate. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000400502 |
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| Registros recuperados: 26 | |
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