ABSTRACT Carcass evaluation data from two breed-comparison trials were used to examine the value of conformation as an indicator carcass composition when in addition weight and different measures fatness. One trial involved 1478 crossbred lambs out three ewe types by Border Leicester, Dorset Down, Ile-de-France, North Country Cheviot, Oxford Southdown, Suffolk, Texel Wensleydale sires. The other 920 dam Oldenburg, Suffolk Each extended over 3 years. Conformation contributed little prediction...

ABSTRACT An evaluation was carried out over a 5-year period in 10 commercial flocks of Scottish Blackface, Half-bred and Mule ewes to examine the carcass characteristics sire breeds: Border Leicester, Dorset Down, Hampshire He de France, North Country Cheviot, Oxford Southdown, Suffolk, Texel Wensleydale. average 43 sires used per breed. The analyses involved tissue separation data for total 1402 lambs. Analyses were separately early late determined by time year which lambs slaughtered. Sire...

ABSTRACT The Hennessy Grading Probe (GP) and the SFK Fat-O-Meater (FOM) are instruments capable of automatically measuring fat muscle thicknesses from differential light reflectance tissues. They may offer advantages in precision cost measurement over simpler optical probe (OP). GP FOM were used on slaughterline at nine abattoirs to measure thickness m . longissimus dorsi (MLD) MLD depth last rib (LR) third fourth (3/4 LR) positions. probes alternatively runs 100 carcasses which also...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImmunoglobulins of sheep colostrumRalph Heimer, David W. Jones, and Paul H. MaurerCite this: Biochemistry 1969, 8, 10, 3937–3944Publication Date (Print):October 1, 1969Publication History Published online1 May 2002Published inissue 1 October 1969https://pubs.acs.org/doi/10.1021/bi00838a009https://doi.org/10.1021/bi00838a009research-articleACS PublicationsRequest reuse permissionsArticle Views131Altmetric-Citations21LEARN ABOUT THESE METRICSArticle...

SUMMARY Results are reported from four separate trials carried out to determine the precision of Sonatest (simple A-mode ultrasonic machine) and Scanogram (modified linear scanner) for predicting body composition live cattle. Cattle in differed breed, sex origin, data provided an opportunity consistency results different circumstances. A total 210 cattle were involved. Fat thickness measurements (Sonatest Scanogram) fat M. longissimus areas (Scanogram only) taken at 10th 13th ribs position...

ABSTRACT The Hennessy and Chong Fat Depth Indicator the Ulster Probe automatic recording instruments developed for measuring fat thickness were tested against optical probe use in pig carcass classification grading. measurements taken using each 60 mm from dorsal mid-line over m. longissimus at positions of 3rd/4th lumbar vertebrae, last ribs rib on a total 110 hot carcasses covering range market weights Great Britain. standard deviation lean proportion equal weight was 35·4 g/kg. differed...

SUMMARY Dissection data for 753 steer carcasses from 17 breed-type x feeding system groups were used to examine the prediction of lean content in side (half carcass) standardized wholesale joints. Different equations examined and joints compared both terms predictive precision stability their between groups. The relative predicting weight depended on whether or not equation included joint weight. With as independent variates, there was little difference most precision, smaller joints, shin...

Summary Dissection data for 753 steer carcasses from 17 breed-type × feeding system groups were used to examine the distribution of bone weight between 11 standardized commercial joints, and prediction content in side (half carcass) individual joints. Breed types included Ayrshire, Friesian, Friesian Ayrshire crosses out Friesians by Angus, Charolais, Hereford, Limousin, Simmental South Devon sires. Group means ranged 14·9 21·0 kg with a pooled within-group S.D. 1·97 kg. The increase each...

ABSTRACT A simple criterion is described for selecting which of a number sample joints estimates most precisely given cost (T) the mean lean percentage population carcasses, using double sampling. It shown that best joint one giving largest value of: where ρ correlation between content and carcass side ( y ), k dissection as proportion dissection. The optimum carcasses to dissect is: standard error estimated then: σ deviation C measuring .

ABSTRACT Sixty-four Friesian/Holstein cows culled from dairy herds were selected for uniformity and general health. They allocated to five groups of 12 on the basis body condition live weight excluding two at each extreme. These four indicated range in sample slaughtered beginning trial with one group cows. Of remaining groups, implanted 300 mg trenbolone acetate (Finaplix, Hoechst) used as unimplanted controls; control after 60 days 100 days. All individually fed appetite a pelleted diet...

The effect of supplementing neonatal heifer calves with varying levels ECAB on pre-weaning growth performance was investigated. Post-weaning also measured, to determine any carry-over supplementation ECAB. Forty-eight (7 ± 0.4 days old, average liveweight 39.3 5.3 kg) were utilized in a complete randomised experimental design, comprising 16 per pen, randomly allocated one the following three treatments: (1) Basal commercial calf starter mix without (Control); (2) control plus 4 kg/ton (Low);...

ABSTRACT Thirteen pairs of Suffolk rams were selected on high and low 18-month adjusted live weight from six farms over 2 years, to establish the relationship between early lamb growth. Progeny first produced in recorded crossbred flocks (618 lambs) then an experimental flock ewes (1083 lambs). Different results obtained flocks. The regressions 12- 13-week ram (within farm deviation) 0·053 ± 0·022 kg –0·004 0·020 kg, respectively. These for indirect selection correspond ‘effective’...

Dairy cows in early lactation grazed irrigated perennial pastures spring and were offered 7-8 kg maize silage DM/day, either the morning or throughout entire day night. Another group of with rumen fistulae pen-fed annual pasture similar quality silage, again, only Rumen retention time, diet digestibility, excretion grains measured during pen-feeding trial, as well rate disappearance feed samples from nylon bags placed each cow. Diurnal variations pH, total volatile fatty acids, ammonia...

In 1976, ten members of the Welsh Mountain Breed Society, established Camda Cynwyd Ltd as a co-operative society. The stated aim is to breed slightly bigger ewes that lamb easily and rear heavier lambs whilst retaining hardiness other beneficial traits breed. A nucleus flock 150 was created in 1976 with more productive out each member's MLC recorded flock. hired facilities for keeping recording at ABRO hill farm, Rhydglafes, North Wales six years. Anticipating disposal farm by AFRC 1984,...