Effects of feeding various pasture silage supplements to grazing ewes

Rattray, P. V.

doi:10.1080/03015521.1977.10425994

Cited by 8 publications

(8 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Barry et al (1978) found that the response of intake with increasing fineness of chop was reduced if silages received effective additive treatment. When offered ad libitum at pasture, Rattray (1977) found ewes ate daily 39% more finechopped wilted (0.99 kg) than wilted flail-harvested silage (0.71 kg); this supports the overseas indoor feeding results that intake of silage by sheep responds well to increasing fineness of chop (Table 2).…”

Section: Lossessupporting

confidence: 54%

“…This was subsequently verified in a comparative trial (Greenhalgh & Reid 1974). A similar effect might exist with silage comparisons which could further help explain the apparent dissimilarity in Rattray's sheep production work and Dulphy's intake studies in addition to any substitution effect between pasture and silage that occurs in the grazing situation (Rattray 1977;Marsh 1978;Rattray et al 1978).…”

Section: Conclusion and Recommendationsmentioning

confidence: 83%

“…20 g DOM/kg LW 0.75). However, when wilted finechopped silage was compared with wilted flailharvested material as supplements at pasture, Rattray (1977) found no significant difference in fasted daily gain (83 v. 60 g/day respectively) by sheep. In a further experiment Rattray et al (1978) found even smaller differences in fasted live-weight gain of ewes offered flail or coarse-chopped (40-80 mm) silage (100 v. 102 g/day respectively) and no significant difference in ovulation rate (1.27 v. 1.22 ova/sheep).…”

Section: Pasture Silagementioning

confidence: 99%

“…The introduction and subsequent development of forage harvesters over the past 30 years has made the task of silage making easier, and has probably been a major factor responsible for the increasing popularity of this method of forage conservation in recent years (Department of Statistics 1974, 1977. Types of forage harvester most commonly available to New Zealand farmers can be classified into the following categories: 1.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A review of the effects of mechanical treatment of forages on fermentation in the silo and on the feeding value of the silages

Marsh

1978

New Zealand Journal of Experimental Agriculture

View full text Add to dashboard Cite

The effect of mechanical damage (Iaceratiori, chopping, etc.) on fermentation and losses of herbage in the silo and the effect of the resultant silages on digestibility, intake, and subsequent animal production are reviewed. Physical damage was found to increase rate of fermentation and also tended to reduce losses from the silo compared with long-cut material. The effect of physical damage on digestibility was small and variable; many determinations were confounded with intake and consequently no firm conclusions could be drawn. Intake of silages by sheep increased markedly with increasing fineness of chop, but no optimum chop length for maximum intake was determined. Growing and adult cattle also increased silage intake as fineness of chop increased, but the response was smaller than with sheep and showed little justification for fine chopping « 25 mm); however, most cattle comparisons were made in association with concentrate supplementation which limits extrapolation of results to sole ration or supplement to pasture feeding systems. Despite responses in intake to increasing fineness of chop, production responses from sheep and growing and lactating cattle were small and often not significant. It was concluded that little justification could be found for fine chopping in terms of improved animal production, but further studies were required under New Zealand pastoral conditions if this conclusion is to be confirmed and the reasons why determined.

show abstract

Section: Lossessupporting

confidence: 54%

Section: Conclusion and Recommendationsmentioning

confidence: 83%

Section: Pasture Silagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A review of the effects of mechanical treatment of forages on fermentation in the silo and on the feeding value of the silages

Marsh

1978

New Zealand Journal of Experimental Agriculture

View full text Add to dashboard Cite

show abstract

“…Egg counts were made according to the modified McMaster method and estimates of pasture larval populations were made using the technique described by Vlassoff (1973). Pasture OM estimations were made using the method of Rattray (1977). Larval differentiations were carried out on bulk faecal cultures for each group on each sampling date in autumn and winter.…”

Section: Experimental Methodsmentioning

confidence: 99%

Long-term parasitological consequences and production responses in ewes and lambs after a single post-parturient anthelmintic treatment of ewes

Brunsdon¹,

Vlassoff²

1985

New Zealand Journal of Experimental Agriculture

View full text Add to dashboard Cite

A study was made of the long-term parasitological and production consequences of a post-parturient (docking) anthelmintic treatment for spring-lambing ewes given about 3 weeks after the mean lambing date. During summer, treated and untreated ewes continued to graze their respective pastures which were subsequently grazed by lambs during the autumn and winter. Faecal egg counts of the treated ewes were significantly lower than those of untreated controls throughout spring and summer. In the lambs, there was no significant difference in the mean egg counts at weaning. On all sampling occasions in autumn and winter, mean faecal egg counts of lambs on pasture previously grazed by treated ewes in summer were lower than those oflambs on pasture grazed by untreated ewes. The difference was significant on 50% of the sampling dates. Maximum larval availability on pasture grazed by the treated ewes was respectively 78, 58 and 35% lower in summer, autumn, and winter than on pasture grazed by the untreated controls. Treated ewes and their lambs were 3.3 and 0.8 kg heavier respectively at weaning than the controls. During summer, treated ewes produced 0.18 kg more wool. During the autumn-winter period, the lambs grazing pasture previously grazed by the treated ewes showed mean liveweight gain and greasy fleece production advantages of 1.5 and 0.15 kg respectively. Although possible paddock. interaction was not measured, the trend of parasitological parameters suggests that the production responses recorded can be largely attributed to the treatment. Both the parasitological and production consequences of the post-parturient parasite burdens in ewes may therefore be more extensive than has been demonstrated previously. The data also illustrate an important, practical correlation between the decrease in the levels of residual dry matter on pasture over winter and an increase in the availability of infective larvae to the grazing animal.

show abstract

Factors influencing the yield and feeding value of pasture grown for conservation

Browse¹,

Haslemore²,

Thaine³

1984

New Zealand Journal of Experimental Agriculture

View full text Add to dashboard Cite

Effects of feeding various pasture silage supplements to grazing ewes

Cited by 8 publications

References 6 publications

A review of the effects of mechanical treatment of forages on fermentation in the silo and on the feeding value of the silages

A review of the effects of mechanical treatment of forages on fermentation in the silo and on the feeding value of the silages

Long-term parasitological consequences and production responses in ewes and lambs after a single post-parturient anthelmintic treatment of ewes

Factors influencing the yield and feeding value of pasture grown for conservation

Contact Info

Product

Resources

About