@conference {40367,
	title = {Blood metabolites near calving in twin-pregnant and single- pregnant cows},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {52},
	year = {1992},
	month = {Jan},
	pages = {21-24},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {This trial was designed to test the hypothesis that increased  faecal egg counts (FEC) of fleeceweight-selected (FW) lambs over  control (C) lambs represented a decreased resistance to internal  parasitism in FW lambs. Measurements were recorded over a 42 day period  from late February 1991 using August-born lambs from the Massey  University FW and C flocks. All lambs were drenched with ivermectin on  day 0. Lambs of each sex and flock were randomly allocated within sire  (4 per flock) to receive an albendazole controlled release capsule  (+ALB). Ewes and rams were run separately. Midside wool growth,  liveweight, and FEC were recorded, and estimates of dry matter intake  were inferred from chromate analyses.   The FW lambs had consistently higher FEC{\textquoteright}s than C lambs. Significant  differences were observed by flock and ALB treatment in both wool  production and liveweight gain, but no significant flock-by-ALB  interaction were detected. Trends in production traits indicated that  the superiority of FW lambs may have increased in situations where the  development of adult worm burdens was continually suppressed. However,  no clear evidence was found to show that FEC is a reliable indicator of  a sheep{\textquoteright}s resistance to production losses arising out of internal  parasitism.  },
	issn = {1176-5283},
	author = {Morris CA and Day AM and Jones KR}
}
