Effect of different alternative roughages on the profitability of milk production systems with F1 Holstein x Zebu cows

Abstract

It was analyzed, by means of simulation, the effect of using four different rougahge alternatives during the dry period on the yield of milk production system using F1 Holstein x Gir cows. The rougahge alternatives were, as follows: 1) use of fresh sugar cane (Saccharum officinarum L.) for three months and corn silage (Zea mays L.) for three months, 2) use of corn silage for six months, 3) use of sorghum silage for six months, and 4) use of fresh sugar cane enriched with urea and ammonium sulfate for six months. The F1 Holstein x Gir herd of the Experimental Farm Felixlândia (FEFX) of the Agricultural Research Corporation of Minas Gerais (EPAMIG), located in the municipality of Felixlândia, state of Minas Gerais, central region of the state was used as reference. The inventory expenses, revenue and other data were registered in CUSTO BOVINO LEITE 1.0 software, aiming to generate the results for the profitability analysis. Fresh sugar cane was the rougahge alternative with the best profitability in milk production system with F1 Holstein x Gir cows, even with a smaller volume of milk produced.

Profitability analysis of compost barn and free stall milk-production systems: a comparison

“…Table 2 shows the average values for the components of production cost in compost barn and free stall production systems in total value and in reals per litre of milk, together with their respective proportions in relation to the EOC and the TOC. The feeding cost, which is the main cost of dairy farms (CORRÊA et al, 2017;FERRAZZA et al, 2017;LOPES et al, 2015;TEIXEIRA JÚNIOR et al, 2016;VILLELA et al, 2017), was similar in the two production systems (Table 2). This occurred because in both facilities the same type of feed can be used, and feed is supplied to the animals in the same way as a total diet using a forage wagon.…”

Produção e composição do leite em função da alimentação de vacas mestiças Holandês x Zebu confinadas em condições experimentais no Brasil - Metanálise

“…Porém, apresenta baixos teores de proteína e baixa degradação ruminal da fração fibrosa. Geralmente é utilizada na forma in natura, apresentando em torno de 30% de MS, 53,60% de FDN, 33,33% de FDA, com digestibilidade de 61,60 e 41,97% para a MS e a FDN, respectivamente (Teixeira Júnior et al, 2016;Valadares Filho et al, 2017), valores esses que comprovam as limitações da cana-de-açúcar com relação à degradabilidade da FDN, a qual é composta pela celulose e pelas hemiceluloses, que são potencialmente degradadas no rúmen pela ação das bactérias.…”