Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-16T01:16:36.611Z Has data issue: false hasContentIssue false

Sward structure and short-term herbage intake in Arachis pintoi cv. Belmonte subjected to varying intensities of grazing

Published online by Cambridge University Press:  19 December 2017

G. P. Silva*
Affiliation:
Animal Science Department, University of São Paulo, E.S.A. ‘Luiz de Queiroz’, Av. Pádua Dias, 11, CEP 13418-900, Piracicaba, SP, Brazil
C. A. Fialho
Affiliation:
Department of Animal Nutrition and Breeding, São Paulo State University (UNESP), College of Veterinary Medicine and Animal Science, Av. Prof. Doutor Valter Mauricio Correa, CEP 01049010, Botucatu, SP, Brazil
L. R. Carvalho
Affiliation:
Animal Science Department, University of São Paulo, E.S.A. ‘Luiz de Queiroz’, Av. Pádua Dias, 11, CEP 13418-900, Piracicaba, SP, Brazil
L. Fonseca
Affiliation:
Ponta Grossa State University (UEPG), Campus Uvaranas, CEP 84030900, Ponta Grossa, PR, Brasil
P. C. F. Carvalho
Affiliation:
Department of Forage Plants and Agrometeorology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
C. Bremm
Affiliation:
Agricultural and Livestock Research Foundation, R. Gonçalves Dias, 570, CEP 90130-060, Porto Alegre, RS, Brazil
S. C. Da Silva
Affiliation:
Animal Science Department, University of São Paulo, E.S.A. ‘Luiz de Queiroz’, Av. Pádua Dias, 11, CEP 13418-900, Piracicaba, SP, Brazil
*
Author for correspondence: G. P. Silva, E-mail: [email protected]

Abstract

The use of forage legumes has been proposed as a means of generating sustainable grazing environments. Their limited use, particularly in tropical pastures, is partially due to the limited knowledge regarding the efficiency of utilization by animals. The present study characterized the sward structure, nutritive value and ingestive behaviour of dairy heifers in pastures of peanut cv. Belmonte under continuous stocking management. Treatments corresponded to sward heights of 5, 10, 15 and 20 cm, according to a randomized complete block design, with four replications. The following response variables were evaluated: vertical distribution of the morphological components within the sward, forage mass, nutritive value (simulated grazing), bite rate (BR), bite mass (BM) and short-term herbage intake rate (STIR). The top half of the sward height was mainly composed of leaves and the bottom half mainly of stolon and dead material regardless of management height. Greater values of neutral detergent fibre and acid detergent fibre were recorded during autumn, while higher values of in-vitro dry matter (DM) digestibility (0·85) occurred during spring regardless of management height for the grazed stratum. In relation to treatments, greater values of crude protein were recorded on swards managed at 5 cm (0·27) and 10 cm (0·26). Bite rate, BM and STIR varied with sward height, but not with a season of the year. The STIR followed a broken line response to sward height, with increasing values up to 13·1 cm (106 g DM/kg body weight). Sward structure played an important role in determining the STIR. To maximize the STIR of dairy heifers under continuous stocking management, swards should be managed at heights of not <13·1 cm.

Type
Animal Research Paper
Copyright
Copyright © Cambridge University Press 2017 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Allden, WG and Whittaker, IAM (1970) The determinants of herbage intake by grazing sheep: the interrelationship o factors influencing herbage intake and availability. Australian Journal of Agricultural Research 21, 755766.Google Scholar
Barre, P, Emile, JC, Betin, M, Surault, F, Ghesquière, M and Hazard, L (2006) Morphological characteristics of perennial ryegrass leaves that influence short-term intake in dairy cows. Agronomy Journal 98, 978985.Google Scholar
Barrett, PD, Laidlaw, AS, Mayne, CS and Christie, H (2001) Pattern of herbage intake rate and bite dimensions of rotationally grazed dairy cows as sward height declines. Grass and Forage Science 56, 362373.Google Scholar
Barthram, GT (1985) Experimental techniques: the HFRO sward stick. In Barthram, GT (ed.). The Hill Farming Research Organization Biennial Report 1984/1985. Penicuik, UK: HFRO, pp. 2930.Google Scholar
Boval, M, Coppry, O and Sauvant, D (2014) Mechanistic model of intake of tropical pasture, depending on the growth and morphology of forage at a vegetative stage. Animal Production Science 54, 20972104.Google Scholar
Brink, GE and Soder, KJ (2011) Relationship between herbage intake and sward structure of grazed temperate grasses. Crop Science 51, 22892298.Google Scholar
Burlison, AJ, Hodgson, J and Illius, AW (1991) Sward canopy structure and the bite dimensions and bite weight of grazing sheep. Grass and Forage Science 46, 2938.CrossRefGoogle Scholar
Cangiano, CA, Galli, JR, Pece, MA, Dichio, L and Rozsypalek, SH (2002) Effect of liveweight and pasture height on cattle bite dimensions during progressive defoliation. Australian Journal of Agricultural Research 53, 541549.Google Scholar
Carnevalli, RA, Da Silva, SC, Fagundes, JL, Sbrissia, AF, de Carvalho, CAB, Pinto, LFM and Pedreira, CGS (2001) Desempenho de ovinos e respostas de pastagens de tifton 85 (Cynodon spp.) sob lotação contínua. Scientia Agricola 58, 715.Google Scholar
Carvalho, PCF (2005) O manejo da pastagem como gerador de ambientes pastoris adequados à produção animal. In Pedreira, CGS, Moura, JC, Silva, SC and Faria, VP (eds). Teoria e Prática da Produção Animal em Pastagens. Piracicaba, SP, Brasil: FEALQ, pp. 732.Google Scholar
CEPLAC (2012) Leguminosas – Amendoim Forrageiro. Itabuna, Bahia, Brazil: Comissão Executiva do Plano da Lavoura Cacaueira. Available at http://www.ceplac.gov.br/radar/amendoim%20forrageiro.htm (Accessed 9 November 2017).Google Scholar
Combes, D, Decau, ML, Rakocevic, M, Jacquet, A, Simon, JC, Sinoquet, H, Sonohat, G and Varlet-Grancher, C (2011) Simulating the grazing of a white clover 3-D virtual sward canopy and the balance between bite mass and light capture by the residual sward. Annals of Botany 108, 12031212.Google Scholar
Da Silva, SC and Carvalho, PCF (2005) Foraging behaviour and herbage intake in the favourable tropics/sub-tropics. In McGilloway, DA (ed.). Grassland: A Global Resource. Wageningen, The Netherlands: Wageningen Academic Publ, pp. 8195.Google Scholar
Demment, MW, Peyraud, JL and Laca, EA (1995) Herbage intake at grazing: a modelling approach. In Journet, M, Grenet, E, Farce, MH, Thèriez, M and Demarquilly, C (eds). Recent Devlopment Nutrition of Herbivory. Paris, France: INRA Editions, pp. 121141.Google Scholar
de Vries, MFW (1995) Estimating forage intake and quality in grazing cattle: a reconsideration of the hand-plucking method. Journal of Range Management 48, 370375.Google Scholar
Flores, ER, Laca, EA, Griggs, TC and Demment, MW (1993) Sward height and vertical morphological differentiation determine cattle bite dimensions. Agronomy Journal 85, 527532.Google Scholar
Fonseca, L, Mezzalira, JC, Bremm, C, Filho, RSA, Gonda, HL and Carvalho, PCF (2012) Management targets for maximising the short-term herbage intake rate of cattle grazing in Sorghum bicolor . Livestock Science 145, 205211.Google Scholar
Fonseca, L, Carvalho, PCF, Mezzalira, JC, Bremm, C, Galli, JR and Gregorini, P (2013) Effect of sward surface height and level of herbage depletion on bite features of cattle grazing Sorghum bicolor swards. Journal of Animal Science 91, 43574365.Google Scholar
Forbes, TDA and Hodgson, J (1985) Comparative studies of the influence of sward conditions on the ingestive behaviour of cows and sheep. Grass and Forage Science 40, 6977.Google Scholar
Gibb, MJ, Huckle, CA, Nuthall, R and Rook, AJ (1999) The effect of physiological state (lactating or dry and sward surface height on grazing behaviour and intake by dairy cows. Applied Animal Behaviour Science 63, 269287.Google Scholar
Gonçalves, EN, Carvalho, PCF, Kunrath, TR, Carassai, IJ, Bremm, C and Fischer, V (2009) Relações planta-animal em ambiente pastoril heterogêneo: processo de ingestão de forragem. Revista Brasileira de Zootecnia 38, 16551662.Google Scholar
Gordon, LI and Illius, AW (1992) Foraging strategy: from monoculture to mosaics. In Speedy, AW (ed.). Progress in Sheep and Goat Research. Wallingford, UK: CAB International, pp. 153178.Google Scholar
Gordon, IJ and Lascano, C (1993) Foraging strategies of ruminant livestock on intensively managed grasslands: potentials and constraints. In Baker, MJ, Crush, JR and Humphrey, LR (eds). Proceedings of the 17th International Grassland Congress. Hamilton, New Zealand: International Grassland Congress, pp. 681–389.Google Scholar
Greenwood, GB and Demment, MW (1988) The effect of fasting on short-term cattle grazing behaviour. Grass and Forage Science 43, 377386.Google Scholar
Gregorini, P, Gunter, SA, Beck, PA, Caldwell, J, Bowman, MT and Coblentz, WK (2009) Short-term foraging dynamics of cattle grazing swards with different canopy structures. Journal of Animal Science 87, 38173824.Google Scholar
Griffiths, WM, Hodgson, J and Arnold, GC (2003) The influence of sward canopy structure on foraging decisions by grazing cattle. I. Patch selection. Grass and Forage Science 58, 112124.Google Scholar
Hodgson, J, Clark, DA and Mitchell, RJ (1994) Foraging behaviour in grazing animals and its impact on plant communities. In Fahey, GC (ed.). Forage Quality, Evaluation and Utilization. Madison, WI, USA: ASA, CSSA, SSSA, pp. 796827.Google Scholar
Hodgson, JG (1990) Grazing Management: Science into Practice. New York, NY, USA: John Wiley Longman Scientific and Technical.Google Scholar
Laca, EA and Lemaire, G (2000) Measuring sward structure. In ‘t Mannetje, L and Jones, RM (eds). Field and Laboratory Methods for Grassland and Animal Production Research. New York, USA: Cabi, pp. 103122.Google Scholar
Laca, EA, Ungar, ED, Seligman, N and Demment, MW (1992) Effects of sward height and bulk density on bite dimensions of cattle grazing homogeneous swards. Grass and Forage Science 47, 91102.Google Scholar
Lascano, CE (1994) Nutritive value and animal production of forage Arachis. In Kerridge, PC and Hardy, B (eds). Biology and Agronomy of Forage Arachis. Colombia, Cali: CIAT, pp. 109121.Google Scholar
Lemos, NLS, Ruggieri, AC, Silva, CV, Campos, AF, Malheiros, EB and Teixeira, IAMA (2014) Tanzania grass structure grazed by goats managed with different residual leaf area index under intermittent stocking. Bioscience Journal 30, 18111818.Google Scholar
Mezzalira, JC, Carvalho, PCF, Fonseca, L, Bremm, C, Cangiano, C, Gonda, HL and Laca, EA (2014) Behavioural mechanisms of intake rate by heifers grazing swards of contrasting structures. Applied Animal Behaviour Science 153, 19.Google Scholar
Newman, JA, Penning, PD, Parsons, AJ, Harvey, A and Orr, RJ (1994) Fasting affects intake behaviour and diet preference by grazing sheep. Animal Behaviour 47, 185193.Google Scholar
Noller, CH (1997) Nutritional requirements of grazing animals. In Gomide, JA (ed.). Simpósio Internacional sobre produção Animal em Pastejo (International Symposium on Animal Production under Grazing). Viçosa, MG, Brazil: Federal University of Viçosa, pp. 145172.Google Scholar
Penning, P and Hooper, GE (1985) An evaluation of the use of short term weight changes in grazing sheep for estimating herbage intake. Grass and Forage Science 40, 7984.Google Scholar
Reid, RL (1994) Milestones in forage research (1969–1994). In Fahey, GC, Collins, MJR, Mertens, DR and Moser, LE (eds). Forage Quality, Evaluation ad Utilization. Madison, WI, USA: ASA, CSSA and SSSA, pp. 158.Google Scholar
Soder, KJ, Sanderson, MA, Gregorini, P, Orr, RJ, Rubano, MD and Rook, AJ (2009) Relationship of bite mass of cattle to sward structure of four temperate grasses in short-term grazing sessions. Grass and Forage Science 64, 421431.CrossRefGoogle Scholar
Sollenberger, LE and Burns, JC (2001) Canopy characteristics, ingestive behaviour and herbage intake in cultivated tropical grasslands. In Gomide, JA (ed.). Proceedings of the 19th International Grassland Congress. Sao Paulo, Brazil: Fundacao de Estudos Agrarios Luiz de Queiroz, pp. 321327.Google Scholar
Sollenberger, LE and Vanzant, ES (2011) Interrelationships among forage nutritive value and quantity and individual animal performance. Crop Science 51, 420432.Google Scholar
Stobbs, TH (1973) The effect of plant structure on the intake of tropical pastures. I. Variation in the bite size of grazing cattle. Australian Journal of Agricultural Research 24, 809819.Google Scholar
Tilley, JMA and Terry, RA (1963) A two-stage technique for the in vitro digestion of forage crops. Grass and Forage Science 18, 104111.Google Scholar
Van Soest, PJ, Robertson, JB and Lewis, BA (1991) Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science 74, 35833597.CrossRefGoogle ScholarPubMed
Wilson, JW (1959) Analysis of the spatial distribution of foliage by two-dimensional point quadrats. New Phytologist 58, 9299.Google Scholar
Wolfinger, R (1993) Covariance structure selection in general mixed models. Communications in Statistics – Simulation and Computation 22, 10791106.Google Scholar