The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
01/May/2010
Paulo Henrique Mazza Rodrigues, Rodrigo da Costa Gomes, Renata Farinelli de Siqueira, Paula Marques Meyer, Renato Ranzini Rodrigues
DOI: 10.1590/S1516-35982010000500024
This study aimed at evaluating the accuracy, precision and robustness of in vivo dry matter apparent digestibility estimates (DMAD), using as markers indigestible acid detergent fiber, indigestible neutral detergent fiber, acid detergent lignin, indigestible acid detergent lignin and chromic oxide in comparison to the fecal total collection. Eighteen wethers (56.5 ± 4.6 kg BW) were randomly assigned to diets containing 25, 50 or 75% of concentrate and Coast cross hay for 25 days. Feces were collected during the five days […]
Keywords: bias; fecal recovery; fiber; lignin
01/Sep/2009
Gilberto Vilmar Kozloski, Francisco Rondon Mesquita, Tiago Pansard Alves, Douglas de Souza Castagnino, Cristiano Miguel Stefanello, Luis Maria Bonnecarrère Sanchez
DOI: 10.1590/S1516-35982009000900026
The use of indigestible dry matter (iDM) and indigestible neutral detergent fiber (iNDF) as internal markers to estimate digestibility in lambs was evaluated. Data and samples were obtained from six independent digestion trials with lambs housed in metabolism cages given ad libitum different forage and concentrate feedstuffs. Indigestible residues were determined after 144 hours of in situ incubation of feed and faeces samples. Recovery rate varied from 64.8 to 108.5% for iDM, and from 49.5 to 67.9% for iNDF. As […]
Keywords: digestibility; fecal recovery; indigestible dry matter; indigestible neutral detergent fiber; intake
01/Apr/2007
Nelson Massaru Fukumoto, Julio Cesar Damasceno, Cristiano Côrtes, Rafael Cesário Paine, Maria Fernanda Soares Queiroz, Geraldo Tadeu dos Santos, [...]
DOI: 10.1590/S1516-35982007000200026
The objective of this trial was to use n-alkanes to estimate dry matter intake (DMI) and DM digestibility in sheep. It was also of particular interest to compare two methodologies of fecal collection (total collection vs. grab samples) as well as to identify which n-alkanes best estimate DMI and DM digestibility. Twenty animals were assigned to a completely randomized design and were fed diets containing different proportions of forage peanut (Arachis pintoi Koprov & Gregory cv. Amarillo) and signalgrass hays […]
Keywords: cuticular wax; dotriacontane; fecal recovery; gas chromatography; markers; ruminant