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Review: Feed demand landscape and implications of food-not feed strategy for food security and climate change

  • H. P. S. Makkar (a1)


The food-feed competition is one of the complex challenges, and so are the ongoing climate change, land degradation and water shortage for realizing sustainable food production systems. By 2050 the global demand for animal products is projected to increase by 60% to 70%, and developing countries will have a lion’s share in this increase. Currently, ~800 million tonnes of cereals (one-third of total cereal production) are used in animal feed and by 2050 it is projected to be over 1.1 billion tonnes. Most of the increase in feed demand will be in developing countries, which already face many food security challenges. Additional feed required for the projected increased demand of animal products, if met through food grains, will further exacerbate the food insecurity in these countries. Furthermore, globally, the production, processing and transport of feed account for 45% of the greenhouse gas emissions from the livestock sector. This paper presents approaches for addressing these challenges in quest for making livestock sector more sustainable. The use of novel human-inedible feed resources such as insect meals, leaf meals, protein isolates, single cell protein produced using waste streams, protein hydrolysates, spineless cactus, algae, co-products of the biofuel industry, food wastes among others, has enormous prospects. Efficient use of grasslands also offers possibilities for increasing carbon sequestration, land reclamation and livestock productivity. Opportunities also exist for decreasing feed wastages by simple and well proven practices such as use of appropriate troughs, increase in efficiency of harvesting crop residues and their conversion to complete feeds especially in the form of densified feed blocks or pellets, feeding as per the nutrient requirements, among others. Available evidence have been presented to substantiate arguments that: (a) for successful and sustained adoption of a feed technology, participation of the private sector and a sound business plan are required, (b) for sustainability of the livestock production systems, it is also important to consider the consumption of animal products and a case has been presented to assess future needs of animal source foods based on their requirements for healthy living, (c) for dairy animals, calculation of Emission Intensity based on the lifetime lactation rather than one lactation may also be considered and (d) for assessment of the efficiency of livestock production systems a holistic approach is required that takes into consideration social dimensions and net human-edible protein output from the system in addition to carbon and water footprints.

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Alexandratos, N and Bruinsma, J 2012. World agriculture towards 2030/2050. The 2012 revision. ESA Working Paper No. 12–03, Agricultural Development Economics Division, FAO, Rome, Italy. Retrieved on 3 March 2017 from
Alqaisi, O, Hemme, T, Latacz-Lohman, U and Susenbeth, A 2014. Evaluation of food industry by-products as feed in semi-arid dairy farming systems: the case of Jordan. Sustainability Science 9, 366377.
Bansal, N, Tewari, R, Gupta, JK, Soni, R and Soni, SK 2011. A novel strain of Aspergillus niger producing a cocktail of hydrolytic depolymerising enzymes for the production of second generation biofuels. BioResources 6, 552569.
Bindari, YR and Makkar, HPS 2016. Towards implementation of sustainable animal diets: evidence generation, perspective building and way forward. CAB Reviews 11, 1–27.
Cao, Y and Li, D 2013. Impact of increased demand for animal protein products in Asian countries: implications on global food security. Animal Frontiers 3, 4855.
Carter, SD and Kim, H 2013. Technologies to reduce environmental impact of animal wastes associated with feeding for maximum productivity. Animal Frontiers 3, 4247.
Council for Agricultural Science and Technology (CAST) 2013. Animal feed vs. human food: challenges and opportunities in sustaining animal agriculture toward 2050. Issue Paper, No. 53, CAST, Washington, DC, USA.
de Vries, M and De Boer, IJM 2010. Comparing environmental impacts for livestock products: a review of life cycle assessments. Livestock Science 128, 111.
Dijkstra, J, France, J, Ellis, JL, Strathe, AB, Kebreab, E and Bannink, A 2013. Production efficiency of ruminants: feed, nitrogen and methane. In Sustainable animal agriculture (ed. E. Kebreab), pp. 1025. CAB International, Wallingford, UK.
Dubeux, JCB, dos Santos, MVF Jr, de Mello, ACL, da Cunha, MV, de A Ferreira, M, dos Santos, DC, de A. Lira, M and da C Silva, M 2015. Forage potential of cacti on drylands. Acta Horticulturae 1067, 181186.
Dubois, B, Tomkins, NW, Kinley, RD, Bai, M, Seymour, S, Paul, NA and de Nys, R 2013. Effect of tropical algae as additives on rumen in vitro gas production and fermentation characteristics. American Journal of Plant Sciences 4, 3443.
Ertl, P, Klocker, H, Hoertenhuber, S, Knaus, W and Zollitsch, W 2015a. The net contribution of dairy production to human food supply: the case of Austrian dairy farms. Agricultural Systems 137, 119125.
Ertl, P, Zebel, Q, Zollitsch, W and Knaus, W 2015b. Feeding of by-products completely replaced cereals and pulses in dairy cows, and enhanced edible feed conversion ratio. Journal of Dairy Science 98, 12251233.
Ertl, P, Knaus, W and Zollitsch, W 2016. An approach to including protein quality when assessing the net contribution of livestock to human food supply. Animal 10, 18831889.
Food and Agricultural Organization 2009. The state of food and agriculture: livestock in the balance. FAO, Rome, Italy. Retrieved on 7 August 2017 from
Food and Agricultural Organization (FAO) 2011a. Successes and failures with animal nutrition practices and technologies in developing countries. Proceedings of the FAO Electronic Conference, 1–30 September 2010, Rome, Italy. Retrieved on 3 March 2017 from
Food and Agricultural Organization 2011b. World livestock-2011: livestock in food security, Rome, Italy Retrieved on 7 August 2017 from
Food and Agricultural Organization (FAO) 2012a. Balanced feeding for improving livestock productivity – increase in milk production and nutrient use efficiency and decrease in methane emission. FAO Animal production and Health, paper No. 173, Rome, Italy. Retrieved on 7 August 2017 from
Food and Agricultural Organization (FAO) 2012b. Technical Summary. Biofuel co-products as livestock feed-opportunities and challenges (ed. HPS Makkar). Food and Agricultural Organization of the United Nations, Rome, Italy, pp 1–5. Retrieved on 7 August 2017 from
Food and Agricultural Organization (FAO) 2012c. Crop residue based densified total mixed ration – a user-friendly approach to utilise food crop by-products for ruminant production; by Walli TK, Garg MR, Makkar HPS. FAO Animal Production and Health, paper No. 172, Rome, Italy. Retrieved on 7 August 2017 from
Food and Agricultural Organization (FAO) 2017. National Feed Assessment – India by Makkar, H.P.S., Otte, J., Anandan, S, Vaid, T, Garg, MR, Bhosale, DT, Ahamad Ali, S, Sahoo, A, Angadi, UB, and Prasad, CS. FAO, Rome, Italy.
The Food and Agriculture Organization Corporate Statistical Database (FAOSTAT) 2014. Food and agriculture data. Retrieved on 7 August 2017 from
Foidl, N, Makkar, HPS and Becker, K 2001. The potential of Moringa oleifera for agricultural and industrial uses. In The miracle tree: the multiple attributes of moringa (ed. LJ Fuglie), pp 4576. CTA, Wageningen, the Netherlands.
Gallego, AG, Moreira, I, de Oliveira Carvalho, PL, Perondi, D, Pasquetti, TJ and Gonçalves, LMP 2016. Neutral semi-purified glycerin in growing and finishing pigs feeding. Italian Journal of Animal Science 15, 8793.
Garg, MR, Phondba, BT, Sherasia, PL and Makkar, HPS 2016. Carbon footprint of milk production under smallholder dairying in Anand district of Western India: a cradle-to-farm gate life cycle assessment. Animal Production Science 56, 423436.
Garg, MR, Sherasia, PL, Phondba, BT and Makkar, HPS 2016. Greenhouse gas emission intensity based on lifetime milk production of dairy animals, as affected by ration-balancing program. Animal Production Science, 1–27,
Gerber, PJ, Steinfeld, H, Henderson, B, Mottet, A, Opio, C, Dijkman, J, Falcucci, A and Tempio, G 2013. Tackling climate change through livestock – a global assessment of emissions and mitigation opportunities. FAO, Rome, Italy. Retrieved on 7 August 2017 from
Henriksson, M, Flysjö, A, Cederberg, C and Swensson, C 2011. Variation in carbon footprint of milk due to management differences between Swedish dairy farms. Animal 5, 14741484.
Herrero, M, Havlík, P, Valin, H, Notenbaert, A, Rufino, MC, Thornton, PK, Blümmel, M, Weiss, F, Grace, D and Obersteiner, M 2013. Biomass use, production, feed efficiencies, and greenhouse gas emissions from global livestock systems. Proceedings of the National Academy of Sciences USA 110, 2088820893.
Jackson, AA 2007. Protein. In Essentials of human nutrition, 3rd ed. eds. J Mann and S. Truswell), pp 5372, Oxford University Press, Oxford, UK.
Jankowski, J, Juskiewicz, J, Gulewicz, K, Lecewicz, A, Slominski, BA and Zdunczyk, Z 2009. The effect of diets containing soybean meal, soybean protein concentrate, and soybean protein isolate of different oligosaccharide content on growth performance and gut function of young turkeys. Poultry Science 88, 21322140.
Khan, SH, Das, KS, Amanullah, NG, Dharmapuri, SM and Makkar, HPS 2017. Quantification, chemical composition and nutritional values of food wastes. Journal of Environment Management (Submitted).
Latif, S, Kumar, V, Stadtlander, T, Makkar, HPS and Becker, K 2015. Nutritional and biochemical studies on feeding of hydrolysed and unhydrolysed detoxified Jatropha curcas protein isolate in common carp fingerlings. Aquaculture Research 46, 115.
Leiber, F, Dorn, K, Probst, JK, Lsensee, A, Ackermann, N, Kuhn, A and Neff, AS 2015. Concentrate reduction and sequential roughage offer to dairy cows: effects on milk protein yield, protein efficiency and milk quality. Journal of Dairy Research 82, 272278.
Li, X, Norman, HC, Kinley, RD, Laurence, M, Wilmot, M, Bender, H, de Nys, R and Tomkins, N 2016. Asparagopsis taxiformis decreases enteric methane production from sheep. Animal Production Science,
Liu, H, Jiang, GM, Zhuang, HY and Wang, KJ 2008. Distribution, utilization structure and potential of biomass resources in rural China: with special references of crop residues. Renewable and Sustainable Energy Reviews 12, 14021418.
Makkar, HPS 2014. Biofuel co-products as livestock feed – opportunities and challenges, technical summary. FAO, Rome, Italy. Retrieved on 7 August 2017 from
Makkar, HPS 2016. Smart livestock feeding strategies for harvesting triple gain – the desired outcomes in planet, people and profit dimensions: a developing country perspective. Animal Production Science 56, 519534.
Makkar, HPS and Ankers, P 2014. Towards sustainable animal diets: a survey-based study. Animal Feed Science and Technology 198, 309322.
Makkar, HPS. and Becker, K 1997. Nutrients and antiquality factors in different morphological parts of the Moringa oleifera tree. Journal of Agriculture Science 128, 311322.
Makkar, HPS, Tran, G, Heuzé, V and Ankers, P 2014. State-of-the-art on use of insects as animal feed. Animal Feed Science and Technology 197, 133.
Makkar, HPS, Tran, G, Heuzé, V, Giger-Reverdin, S, Lessire, M, Lebas, F and Ankers, P 2016. Seaweeds for livestock diets: a review. Animal Feed Science and Technology 212, 117.
Marini, JC 2015. Protein requirements: are we ready for new recommendations? Journal of Nutrition 145, 56.
McDonnell, P, Figat, S and O’Doherty, JV 2010. The effect of dietary laminarin and fucoidan in the diet of the weanling piglet on performance, selected faecal microbial populations and volatile fatty acid concentrations. Animal 4, 579585.
Medhi, D 2011. Effects of enzyme supplemented diet on finishing crossbred pigs at different levels of silk worm pupae meal in diet. Indian Journal of Field Veterinarians 7, 2426.
Mottet, A. de Hann, C, Falcucci, A, Tempio, G, Opio, C and Gerber, P 2017. Livestock: on our plates or eating at our table? A new analysis of the feed/food debate. Global Food Security 14, 1104.
O’Brien, D, Brennan, P, Humphreys, J, Ruane, E and Shalloo, L 2014. An appraisal of carbon footprint of milk from commercial grass-based dairy farms in Ireland according to a certified life cycle assessment methodology. International Journal of Life Cycle Assessment 19, 14691481.
Oliveira, L, Madrid, J, Ramis, G, Martínez, S, Orengo, J, Villodre, C, Valera, L, López, MJ, Pallarés, FJ, Quereda, JJ, Mendonça, L and Hernández, F 2014. Adding crude glycerin to nursery pig diet: Effect on nutrient digestibility, metabolic status, intestinal morphology and intestinal cytokine expression. Livestock Science 167, 227235.
Opheim, M, Strube, ML, Sterten, H, Øverland, M and Kjos, NP 2016. Atlantic salmon (Salmo salar) protein hydrolysate in diets for weaning piglets – effect on growth performance, intestinal morphometry and microbiota composition. Archives Animal Nutrition 70, 4456.
Osorto, WA, Lara, PE and Magana, M 2007. A Mulberry (Morus alba), fresh or in the form of meal, in growing and fattening pigs. Cuban Journal of Agricultural Science 41, 5963.
Rahman, KHA, Yusof, SJHM and Zakaria, Z 2016. Bioproteins production from palm oil agro-industrial wastes by Aspergillus terreus UniMAP AA-1. Pertanika Journal of Tropical Agriculture Science 39, 2939.
Rand, WM, Pellett, PL and Young, VR 2003. Meta-analysis of nitrogen balance studies for estimating protein requirements in healthy adults. American Journal of Clinical Nutrition 77, 109127.
Robinson, T and Makkar, HPS 2012. Demand growth for animal-source foods: implications for livestock feed production. In Conducting national feed assessments. FAO animal production and health manual No. 15. (eds MB Coughenour and HPS Makkar) pp 5965, FAO, Rome, Italy. Retrieved on 7 August 2017 from
Salemdeeb, R, zu Ermgassen, EKHJ, Kim, MH, Balmford, A and Al-Tabbaa, A 2016. Environmental and health impacts of using food waste as animal feed: a comparative analysis of food waste management options. Journal of Cleaner Production 140, 871880.
Schader, C, Müller, A, El-Hage Scialabba, N, Hecht, J, Isensee, A, Erb, K-H, Smith, P, Makkar, HPS, Klocke, P, Leiber, F, Schwegler, P, Stolze, M and Niggli, U 2015. Impacts of feeding less food-competing feedstuffs to livestock on global food system sustainability. Journal of the Royal Society Interface 12, pp 112.
Shreck, AL, Nuttelman, BL, Griffin, WA, Erickson, GE, Klopfenstein, TJ and Cecava, MJ 2012. Chemical treatment of low-quality forages to replace corn in cattle finishing diets. Nebraska Beef Cattle Report, Lincoln, Canada, pp. 106–107.
Streit, E, Naehrer, K, Rodrigues, I and Schatzmayra, G 2013. Mycotoxin occurrence in feed and feed raw materials worldwide: long-term analysis with special focus on Europe and Asia. Journal of the Science of Food and Agriculture 93, 28922899.
Swiatkiewicz, S, Swiatkiewicz, M, Arczewska-Wlosek, A and Jozefiak, D 2016. Efficacy of feed enzymes in pig and poultry diets containing distillers dried grains with solubles: a review. Journal of Animal Physiology Animal Nutrition 100, 1526.
Thieme, O and Makkar, HPS 2017. Utilization of loss and waste during the food production cycle as livestock feed. Animal Production Science 57, 601607.
Tran, G, Heuzé, V and Makkar, HPS 2015. Insects in fish diets. Animal Frontiers 5, 3744.
Vancov, T and McIntosh, S 2011. Alkali pretreatment of cereal crop residues for second-generation biofuels. Energy Fuels 25, 27542763.
Van Zanten, HHE, Meerburg, BG, Bikker, P, Herrero, M and de Boer, IJM 2016. Opinion paper: the role of livestock in a sustainable diet: a land use perspective. Animal 10, 547549.
Wadhwa, M, Bakshi, MPS and Makkar, HPS 2015. Waste to worth: fruit wastes and by-products as animal feed. CAB Reviews 10, pp 126.
World Health Organization/Food and Agricultural Organization/United Nations University 2007. Protein and amino acid requirements in human nutrition. Report of a joint FAO/WHO/UNU expert consultation. WHO Technical Report Series No. 935, World Health Organization United Nations University, Geneva, Switzerland, p. 265.
Wilkinson, JM 2011. Redefining efficiency of feed use by livestock. Animal 5, 10141022.
Zehetmeier, M, Hoffmann, H, Sauer, J, Hofmann, G, Dorfner, G and O’Brien, D 2014. A dominance analysis of greenhouse gas emissions, beef output and land use of German dairy farms. Agricultural Systems 129, 5567.
Zhang, HY, Piao, XS, Li, P, Yi, JQ, Zhang, Q, Li, QY, Liu, JD and Wang, GQ 2013. Effects of single cell protein replacing fish meal in diet on growth performance, nutrient digestibility and intestinal morphology in weaned pigs. Asian-Australasian Journal of Animal Science 26, 13201328.
zu Ermgassen, EKHJ, Phalan, B, Green, RE and Balmford, A 2016. Reducing the land use of EU pork production: where there’s swill, there’s a way. Food Policy 58, 3548.


Review: Feed demand landscape and implications of food-not feed strategy for food security and climate change

  • H. P. S. Makkar (a1)


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