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| Yang, Rong-li. |
| The quantity and quality of farmland is the key factor determining grain production capacity, so protecting farmland has become the key to guaranteeing food security. I take Anshan City in Liaoning Province as the study area which has its own particularity in terms of protecting farmland. Based on the prediction of population, coupled with the relevant data concerning farmland area, the per unit area yield of grain, the prediction and analysis of the balance of supply and demand of farmland in Anshan City are conducted. The results show that in the year 2010, the maximum supply amount of farmland that the city can offer is 239000 hm2, and in the year 2020 the maximum supply amount of farmland that the city can offer will be 238000hm2; in the year 2010, the... |
| Tipo: Journal Article |
Palavras-chave: Food security; Farmland protection; Production capacity; Anshan City; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/108420 |
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| Nogueira,WCL; Velásquez,PAT; Furlan,RL; Macari,M. |
| The objective of the present study was to evaluate the effects of different dietary energy levels and stocking densities on the thermoregulating parameters, live performance, and carcass traits of broilers reared under tropical winter conditions at different times of the day. In total, 1,312 one-d-old male broilers were used. Birds were allotted to three different stocking densities (10, 14 or 18 birds/m²) and two dietary energy levels (2900 or 3200 kcal ME/kg). The following parameters were evaluated:radiant heat load (RHL), rectal temperature (RT), feed intake (FI), weight gain (WG), feed conversion ratio (FCR), livability (L), production of live weight per area (WA), and carcass yield. Stocking density did not affect sensible heat loss (SRL) or rectal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Housing environment; Production capacity; Sensible heat; Broiler; Radiation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100009 |
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