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Tethering of grazing goats in tanzania: effect of tethering for 4 or 8 hours daily on intake and milk yield of norwegian cross local goats grazing brachiaria in the wet season

  • D S C Sendalo (a1), E Owen (a1), L A Mtenga (a2), D L Romney (a3), P D Penning (a4) and R W Mayes (a5)...

Extract

The experiment formed part of a development programme to improve tethering practice and increase liquid milk production from grazed goats on smallholder farms. A local survey in upland (Mgeta) and lowland (Mlali) districts near Morogoro (Sendalo, Mtenga, Ngapongora, Minde, Owen, Romney and Gill, 1994) indicated that goats were tethered at sites of grazing for 4 to 8 hours (h) daily (d), with the animals being housed, generally without additional feeding, at other times. The survey also indicated that tethering was a particularly common method of controlling grazing during the wet, crop-planting/crop growing period.

The experiment therefore compared the milk production of lactating goats tethered to graze during the wet season for 4 or 8 h per day. An attempt was made to measure intake during grazing. The experiment tested the hypothesis that goats tethered to graze for 4 h/d would be unable to consume as much grass as those grazed for 8 h/d and consequently, would produce less milk.

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References

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Mayes, R.W., Lamb, C.S. and Colgrove, P.M. 1986. The use of dosed and herbage n-alkanes as markers for the determination of herbage intake. Journal of Agricultural Science, Cambridge, 107: 1616–170.
Penning, P.D. and Hooper, G.E. 1985. An evaluation of the use of short-term weight changes in grazing sheep for estimating herbage intake. Grass and Forage Science 40: 7984.
Sendalo, D.S.C., Mtenga, L.A., Ngapongora, J.M.N., Minde, I., Owen, E., Romney, D.A. and Gill, M. 1994. Tethering of small ruminants in tanzania. the case of morogoro district. Tanzania Society of Animal Production Conference Series, 20 (1993), 154161.

Tethering of grazing goats in tanzania: effect of tethering for 4 or 8 hours daily on intake and milk yield of norwegian cross local goats grazing brachiaria in the wet season

  • D S C Sendalo (a1), E Owen (a1), L A Mtenga (a2), D L Romney (a3), P D Penning (a4) and R W Mayes (a5)...

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