Effects of postpartum<i>Trypanosoma vivax</i>infection on feed intake, livevveight changes, milk yield and composition in West African Dwarf ewes and associated lamb growth rates

Akinbamijo, O.O.; Reynolds, L.; Sherington, J.; Nsahlai, I. V.

doi:10.1017/s0021859600070404

Cited by 5 publications

(4 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is in agreement with previous studies in sheep (Akinbamijo et al, 1994;Osaer et al, 1998 and. In contrast, Bennison (1997) found a direct negative effect of the infection of the dam on calf live weight.…”

Section: Milk Off-take and Offspring Performancesupporting

confidence: 93%

“…It also explains the fact that no difference on milk off-take was found when the supplemented and infected group was compared with the basal and infected group. A negative effect of trypanosomosis on milk yield has been reported in dwarf ewes during late lactation (Akinbamijo et al, 1994) and in N'Dama cows (Agyemang et al, 1990;Bennison, 1997).…”

Section: Milk Off-take and Offspring Performancementioning

confidence: 99%

“…In addition to anaemia, experimental Trypanosoma congolense infection affected reproductive performance of WAD goats (with abortions and stillbirth) but did not have a significant effect on growth or mortality rates (0-30 days) of kids born alive (Goossens et al, 1997). Field or experimental studies have demonstrated that trypanosome infections can affect milk yields of cattle or sheep (Agyemang et al, 1990;Kalu, 1991;Akinbamijo et al, 1994). Some biochemical changes following trypanosome infection have also been reported in castrated male goats and Djallonke ewes (Akinbamijo et al, 1992;Osaer et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of an experimental Trypanosoma congolense infection and plane of nutrition on milk production and some biochemical parameters in West African Dwarf goats

et al. 2005

View full text Add to dashboard Cite

The interactions of trypanosomosis and plane of nutrition on health and productivity of multiparous and primiparous West African Dwarf (WAD) does were studied in a multifactorial experiment including diet (supplementation or basal diet) and infection (infected or control). Experimental does were infected with Trypanosoma congolense at the beginning of the second week post-kidding and monitored for 16 weeks after infection. Trypanosome infection significantly reduced PCV (control: 30.1 ± 0.3 % vs infected: 22.2 ± 0.3 %; P < 0.0001). Regardless of infection, the drop in PCV from the pre-infection period to the end of the experiment was more severe in animals under restricted diet (interaction diet * period: P < 0.001). Trypanosome parasitaemia tended to be higher in the supplemented group than in the basal diet group (P > 0.05) and multiparous animals had a higher parasitaemia (score: 2.6 ± 0.1) than primiparous animals (score: 2.2 ± 0.1) (P < 0.05). Trypanosome infection as well as dietary supplement had a significant effect on lactation length. Milk off-take from trypanosome-infected does was significantly lower than that from the uninfected control group (17.5 ± 3.2 l vs 35.5 ± 3.2 l, P < 0.001) and there was a positive effect of plane of nutrition (supplemented: 32.8 ± 3.2 l and basal diet: 20.2 ± 3.5 l, P = 0.01). The drop in milk off-take due to trypanosome infection was more severe in the supplemented group (control: 46.7 ± 4.7 l vs infected: 18.9 ± 4.2 l) than in the group receiving a basal diet (control: 24.2 ± 5.0 l vs infected: 16.1 ± 4.7 l) (interaction infection *diet, P = 0.04) due to the number of does from the supplemented group that were withdrawn from the experiment. The effect of trypanosome infection on doe's live-weight was only noticeable during the first 8 weeks of lactation and there was no significant effect on offspring growth rate unless the mother died.Plasma total protein, albumin and cholesterol concentrations were significantly reduced by the infection but were significantly increased by supplementation. Supplemented does had a higher level of cholesterol and a tendency for a higher parasitaemia. Does of high parity also had a higher cholesterol level than primiparous does and, based on the number of animals that were withdrawn from the experiment, they showed a lower resistance to the infection.

show abstract

Section: Milk Off-take and Offspring Performancesupporting

confidence: 93%

Section: Milk Off-take and Offspring Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of an experimental Trypanosoma congolense infection and plane of nutrition on milk production and some biochemical parameters in West African Dwarf goats

et al. 2005

View full text Add to dashboard Cite

show abstract

“…Another paper (Akinbamijo et al 1994) reports the effects of postpartum trypanosomiasis on lactating West African Dwarf ewes and their lambs.…”

Section: Effects Of Trypanosoma Vivax Infection During Pregnancy On Fmentioning

confidence: 99%

Effects ofTrypanosoma vivaxinfection during pregnancy on feed intake, nitrogen retention and liveweight changes in West African Dwarf ewes

Akinbamijo¹,

Reynolds²,

Gort³

1994

J. Agric. Sci.

Self Cite

View full text Add to dashboard Cite

S U M M A R YThe effects of infection with T. vivax in mid-or late pregnancy on food intake and utilization, liveweight changes, abortion rate and lamb growth rate were investigated in West African Dwarf ewes at lbadan, Nigeria in 1990. Rate of liveweight gain by ewes infected during mid-pregnancy (IMH) was 16 g/day compared with 33 and 37 g/day for the uninfected ewes offered medium (CM) or high (CH) plane diets. Although digestibility coefficients were not affected, intake of digestible organic matter was higher in CH ewes than in IMH and CM ewes. Nitrogen retention at mid-pregnancy on a metabolic size basis was higher in CH ewes than in CM and IMH ewes.Lamb birth weight and survival rate were lower in infected ewes. Ewes infected in mid-pregnancy (IMH) and in late pregnancy (ILH) had mean birth weights of 1-4 and 10 kg compared with CM and CH ewes, which had mean birth weights of 1-9 and 20 kg respectively. Observed survival rates were 63, 15, 75 and 80% for lambs nursed by IMH, ILH, CM and CH ewes respectively. During the first 6 weeks postpartum, lamb growth rate in all groups did not differ. However, during weeks 7-12 postpartum, lambs nursed by IMH ewes had significantly lower growth rates. Weaning weight was also lower in lambs from IMH (50 kg) dams than in lambs from CM and CH dams (71 kg).Infection during late pregnancy was more severe and all infected ewes lost weight due to reduced feed intake and fever. T. vivax infection in sheep is responsible for reproductive wastage, abortion, poor lamb growth and ewe mortality.

show abstract

Effect of experimental fascioliasis on feed intake, nitrogen retention and body weight changes in open and pregnant Menz sheep

Akinbamijo¹,

Lahlou-Kassi²,

Tembely³

1996

Small Ruminant Research

View full text Add to dashboard Cite

Effects of postpartumTrypanosoma vivaxinfection on feed intake, livevveight changes, milk yield and composition in West African Dwarf ewes and associated lamb growth rates

Cited by 5 publications

References 19 publications

Influence of an experimental Trypanosoma congolense infection and plane of nutrition on milk production and some biochemical parameters in West African Dwarf goats

Influence of an experimental Trypanosoma congolense infection and plane of nutrition on milk production and some biochemical parameters in West African Dwarf goats

Effects ofTrypanosoma vivaxinfection during pregnancy on feed intake, nitrogen retention and liveweight changes in West African Dwarf ewes

Effect of experimental fascioliasis on feed intake, nitrogen retention and body weight changes in open and pregnant Menz sheep

Contact Info

Product

Resources

About