Performance of Assaf Lambs Fed Two Upgraded Agricultural Wastes

Jamal ABO OMAR; Jihad ABDALLAH

doi:10.48048/wjst.2019.2711

Authors

Jamal ABO OMAR Department of Animal Production, Faculty of Agriculture and Veterinary Medicine, An Najah National University, Nablus
Jihad ABDALLAH Department of Animal Production, Faculty of Agriculture and Veterinary Medicine, An Najah National University, Nablus

DOI:

https://doi.org/10.48048/wjst.2019.2711

Keywords:

Assaf lambs, greenhouse wastes, almond hulls, nutritive value, performance

Abstract

Effects of ensiled greenhouse wastes (GHW), alkali-treated GHW and almond hulls (AH) on growth performance were studied on 24 Assaf lambs. All lambs were males with an average weight of 36.2 kg (S.D. = 2.1 kg) at the beginning of the experiment. Animals were randomly divided into 4 groups of 6 lambs each. Lambs in each group received individually corn-soybean meal (SBM) total mixed rations (TMR). Rations were incorporated with a fixed amount (200 g/kg) of the treated raw ingredients: ensiled greenhouse wastes, alkali-treated GHW and ensiled AH. All rations were isonitrogenous and isocaloric. The growth experiment lasted 80 d. Both chemical and biological treatments had significant effects on improving crude protein (CP) and fiber fractions. At termination of the experiment, lambs fed treated ingredients (i.e., ensiled GHW, alkali-treated GHW, ensiled AH) had better (P < 0.05) feed conversion ratios and consumed less (P < 0.05) feed. Treated GHW and AH had no effect on average daily gain (P = 0.14) and total gain (P = 0.21). Cost of gain was significantly lower in lambs fed the treated ingredients.

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Author Biography

Jamal ABO OMAR, Department of Animal Production, Faculty of Agriculture and Veterinary Medicine, An Najah National University, Nablus

RESEARCH ACTIVITIES:
1. Editor, 2003, the Sheep Manual, a joint activity with several middle east countries.
2. A study on sheep and goats raising in the West Bank, 1984. Rural Research Center, An Najah National University (in Arabic).
3. A study on poultry raising in West Bank, 1985, Rural Research Center, An Najah National University (in Arabic).
4. A study on feed industry in the West Bank, 1985, Rural Research Center, An Najah National University (in Arabic).
5. A feasibility study on several livestock branches in West Bank, 1986, Rural Research Center, An Najah National University (in Arabic).
6. A study on the feasibility of establishing a tannery in West Bank. 1989, Rural Research Center, An Najah National University (in Arabic).
7. A study on the sheep and goats projects in West Bank, 1992, Rural Research Center, An Najah National University (in Arabic).
8. A study on using urea in ruminant rations, 1992, Rural Research Center, An Najah National University (in Arabic).
9. A study on using growth promoters in fattening animals, 1992, Rural Research Center, An Najah National University (in Arabic).
10. A proposal on the utilization of animal wastes, 1996.
11. A proposal on the potential of upgrading and use of olive cake in livestock rations, 2001.
12. A proposal on establishing a feed factory in West Bank, 1999.
13. A proposal on establishing a factory of eggs trays, 2000.
14. A study on feed industry in West Bank, 1998, Palestinian Research Center, Nablus, Palestine.

OTHER ACTIVITIES:
1. Active in the research area of utilization of by-products by animals. Founder of the An Najah National University biomass fermenter, 2001. Conduct research in the areas of animal nutrition, management, and production.
2. Founder of the feed analysis unit, Department of Animal Production, Faculty of Agriculture, An Najah National University.
3. Treasurer of the Agricultural Engineers Association, West Bank. 1996-1999.

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