scholarly journals Performance of crossbreds of Polish Merino dams with F1 rams: Finnsheep X Polish Merino. A. Semi-intensive fattening of ram-lambs up to 40—45 kg

1988 ◽  
Vol 60 (6) ◽  
pp. 540-545
Author(s):  
M. Osikowski ◽  
B. Borys ◽  
M. A. Osikowski
Keyword(s):  
Body Weight ◽  
Energy Consumption ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Fibre Diameter ◽  
Fibre Length ◽  
Carcass Quality ◽  
Wool Production ◽  
Ram Lambs ◽  
Fleece Weight

The investigations were carried out to evaluate fattening ability, carcass quality and wool production of semi-intensively fattened ram lambs the progeny of F1 rams: Finnsheep (F) x Polish Merino (PM) mated to PM ewes. Two experiments were performed, on a total of 73 crossbreds and 73 purebred PM lambs. The lambs were housed together in a shed and fed farm-produced roughages, supplemented by commercially available concentrates. The crossbred lambs under semi-intensive feeding were found to have similar fattening ability as the purebreds: daily gains F x PM x PM 196 g and PM 191 g, energy consumption per 1 kg of body weight gain 26.1 and 27.0MJ, respectively. Crossbreeding did not affect slaughter value, but the commercial evaluation of live lambs was poorer in the crossbred groups. The tested crossbreds had generally better wool performance: their clean fleece weight was 1.09 kg, while that of the purebreds was 0.98 kg, rendement respectively 59.3 and 53.0 %, fibre length 6.7 and 5.4 cm, while fibre diameter was similar in the both groups.

Wool yield and characteristics of Dorset, Leicester and Sunffolk breeds and their ‘DLS’ cross

1977 ◽  
Vol 88 (3) ◽  
pp. 651-653 ◽  
Author(s):  
M. H. Fahmy ◽  
J. A. Vasely
Keyword(s):  
First Generation ◽  
Fibre Diameter ◽  
Fibre Length ◽  
Wool Production ◽  
Average Fibre Diameter ◽  
Average Fibre ◽  
Wool Yield ◽  
Fleece Weight

SUMMARYGreasy fleece weight (12 months growth) and wool samples from hip and shoulder regions were taken on 15 Dorset, 20 Leicester, 20 Suffolk and 17 DLS ewes (a cross of ½ Dorset, ¼ Leicester, ¼ Suffolk obtained by mating DL rams to DS ewes and DS rams to DL ewes). The purpose of the study was to compare wool production and characteristics of the first generation of DLS with that of the three breeds of origin. Wool production of DLS was 3·58 kg, 8·8 and 14% higher than that of Suffolk and Dorset, but 11% lower than that of Leicester (P< 0·01). The percentage of clean wool was highest in Leicester (78·3%), followed by DLS, Dorset and Suffolk (76·1, 74·3 and 70·5%, respectively). The average fibre diameter of the DLS and Leicester was 38 /m, 4 /m thicker than that for Suffolk and Dorset (P < 0·01). Average fibre length was 15 cm in DLS and Dorset, 6 cm shorter than in Leicester, and 3 cm longer than in Suffolk (P < 0·01). The variability in fibre diameter and length was highest in Leicester, followed closely by DLS.

scholarly journals Energy utilization for body weight gain of ram-lambs fed differently processed breadfruit (Artocarpus altilis) meal in total mixed rations.

2021 ◽  
Vol 43 (2) ◽  
pp. 147-154
Author(s):  
M. I Okoruwa
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Energy Intake ◽  
Feed Intake ◽  
Body Weight Gain ◽  
Energy Utilization ◽  
Daily Weight Gain ◽  
Energy Output ◽  
Initial Body Weight ◽  
Ram Lambs

The study was carried out to estimate the energy utilization for body weight gain in West African dwarf ram-lambs fed differently processed breadfruit meal in total mixed rations. Twenty non-castrated ram-lambs, about 7months of age with an average-initial body weight of 6.00 ± 0.55kg, were randomly assigned to four dietary treatments with five ram-lambs per treatment group in a completely randomized design. Ficus foliage with differently processed breadfruit meals and concentrate diet were used as treatment diets. Diet A (50% unpeeled raw breadfruit meal +20% Ficus foliage + 30% concentrate diet) B (50% peeled raw breadfruit +20% Ficus foliage + 30% concentrate diet), C (50% unpeeled soaked breadfruit meal +20% Ficus foliage + 30% concentrate diet) and D (50% unpeeled boiled breadfruit meal + 20% Ficus foliage + 30% concentrate diet). Results showed that faecal energy output (999.41MJ/g/day DM) was significantly (P< 0.05) highest in treatment diet Acompared with other treatment diets. Ram-lambs on treatment diets B and C had the significantly highest (P < 0.05) on digestible energy intake (1310.84 and 1295.62 MJ/g/day DM), metabolizable energy intake (1074.89 and 1062.41MJ/g/day DM), average total weight gain (4.18 and 4.13kg) and average daily weight gain (87.08 and 86.04g) compared with treatment diets A and D. Gross energy intake (4503.00MJ/g/day), average total feed intake (13.68kg), average daily feed intake (285.00g) and feed conversion ratio (4.44) were significantly (P < 0.05) better in ram-lambs on treatment diet D. There were no significant (P > 0.05) differences in urinary energy loss, metabolizability and initial body weight of ram-lambs. It was therefore concluded that diets B and C enhanced efficiency of energy utilization for body weight gain of ram-lambs.

scholarly journals Growth and wool production of sheep reared at highland of Nepal

2018 ◽  
Vol 46 (3) ◽  
pp. 159-163
Author(s):  
B Khanal ◽  
AKMA Kabir ◽  
BR Baral ◽  
HR Dhakal
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
High Altitude ◽  
Body Weight Gain ◽  
Winter Season ◽  
Substantial Improvement ◽  
The Body ◽  
Daily Weight Gain ◽  
Wool Production ◽  
Total Weight Gain

Sheep farmers lived in high altitude of Nepal have limited options of supplying roughages in winter season which is resulting severe feed deficit in these periods. Quality roughages like hay and other dried cereal stalks are not sufficiently available in the areas to mitigate the feed deficit in dry harsh winter. Therefore, the study was conducted to evaluate the effects of commonly practiced feeding system on growth and wool production of sheep in winter season. The research was performed at Sheep and Goat Research farm, Jumla, Nepal which is located at 2700 meters above sea level. The animals were supplied with three different rations viz (i) adlibitum oat hay with concentrate feed @ 1% of body weight;(ii) adlibitum conventional hay with concentrate feed @1% of body weight, and (iii) grazing in moderate pasture with concentrate feed @ 1% of body weight. The differences among the treatments were found significant ((p<0.05) changes in terms of average daily weight gain and total weight gain, while wool length and wool production were not significantly different (p>0.05) among the treatments. The treatment of feeding oat hay with concentrate @ 1% of body weight had yielded highest body weight gain.  The result of the study revealed that feeding oat hay was more profitable in comparison to conventional system of grazing and feeding conventional hay. Inclusion of oat hay on the sheep diet in dry harsh winter season could make substantial improvement in the body weight gain of the sheep in the high altitude of Nepal.Bang. J. Anim. Sci. 2017. 46 (3): 159-163

scholarly journals Energy utilization for body weight gain of ram-lambs fed differently processed breadfruit (Artocarpus altilis) meal in total mixed rations

2021 ◽  
Vol 43 (1) ◽  
pp. 147-154
Author(s):  
M. I. Okoruwa
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Energy Intake ◽  
Feed Intake ◽  
Body Weight Gain ◽  
Energy Utilization ◽  
Daily Weight Gain ◽  
Energy Output ◽  
Initial Body Weight ◽  
Ram Lambs

The study was carried out to estimate the energy utilization for body weight gain in West African dwarf ram-lambs fed differently processed breadfruit meal in total mixed rations. Twenty non-castrated ram-lambs, about 7months of age with an average-initial body weight of 6.00±0.55kg, were randomly assigned to four dietary treatments with five ram-lambs per treatment group in a completely randomized design. Ficus foliage with differently processed breadfruit meals and concentrate diet were used as treatment diets. Diet A (50% unpeeled raw breadfruit meal +20% Ficus foliage + 30% concentrate diet) B (50% peeled raw breadfruit +20% Ficus foliage + 30% concentrate diet), C (50% unpeeled soaked breadfruit meal +20% Ficus foliage + 30% concentrate diet) and D (50% unpeeled boiled breadfruit meal + 20% Ficus foliage +30% concentrate diet). Results showed that faecal energy output (999.41 MJ/g/day DM) was significantly (P<0.05) highest in treatment diet A compared with other treatment diets. Ram-lambs on treatment diets B and Chad the significantly highest (P < 0.05) on digestible energy intake (1310.84 and 1295.62 MJ/g/day DM), metabolizable energy intake (1074.89 and 1062.41 MJ/g/day DM), average total weight gain (4.18 und 4.13kg) and average daily weight gain (87.08 and 86.04g) compared with treatment diets A and D. Gross energy intake (4503.00MJ/g/day), average total feed intake (13.68kg), averuge daily feed intake (285.00g) and feed conversion ratio (4.44) were significantly (P < 0.05) better in ram-lambs on treatment diet D. There were no significant (P >0.05) differences in urinary energy loss, metabolizability and initial body weight of ram-lambs. It was therefore concluded that diets B and C enhanced efficiency of energy utilization for body weight gain of ram-lambs.

The summer nutrition of weaner sheep: The relative roles of available energy and protein when fed as supplements to sheep grazing mature pasture herbage

1959 ◽  
Vol 10 (2) ◽  
pp. 219 ◽  
Author(s):  
WG Allden
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Subterranean Clover ◽  
Independent Effect ◽  
Control Group ◽  
Limiting Factor ◽  
Growth Responses ◽  
Wool Production ◽  
Available Energy

In a field experiment of factorial design, concentrate supplements of cereal origin were fed to 16 groups each of eight young Merino wethers. These sheep grazed the mature herbage of Phalaris tuberosa L.-subterranean clover (Trifolium subterraneum L.) sown pastures during summer in the Mediterranean environment of Adelaide, South Australia; and under conditions of common grazing, sheep in the different treatment groups were each day individually fed rations which varied in content of available energy and of digestible nitrogen (protein). The daily allowances of energy were 48, 113, 227, and 340 g total digestible nutrients (T.D.N.), and of digestible nitrogen either 2.5, 5.0, 7.5, or 10.0 g. In addition there was a control group which received no supplement. No interaction was observed between the energy and the nitrogen portion of the supplement, each constituent having its independent effect in terms of both body weight gain and wool growth. Responses to changing energy were linear for both wool production and body weight gain. The effect on wool production of increasing protein was also linear, but the gain in body weight with each increment of protein progressively decreased, which suggested an approach to an asymptotic value. It is concluded that for body weight gain mature herbage may be deficient in both available energy and protein, but once a small need for protein is satisfied energy becomes a limiting factor. In terms of wool production summer pastures are deficient in both protein and energy, the latter constituent making a notable contribution in influencing nitrogen retention.

The effect of previous and current nutrition on wool production in southern Victoria

1962 ◽  
Vol 2 (6) ◽  
pp. 160 ◽  
Author(s):  
MJ Sharkey ◽  
IF Davis ◽  
PA Kenney
Keyword(s):  
Fibre Diameter ◽  
Fibre Length ◽  
Initial Increase ◽  
Nutritional Treatment ◽  
Wool Production ◽  
Wool Growth ◽  
Short Period ◽  
The Mean ◽  
Fleece Weight ◽  
Autumn And Winter

The effect of different planes of nutrition on the wool production of Corriedale wethers at pasture was studied between August 1959 and December 1960. The plane of nutrition was controlled by rate of stocking. The effect of previous nutritional treatment on wool production was slight. It affected wool weight and fibre length for 160 one month and fibre diameter for two months. The differences in current nutritional treatment were accompanied by large differences in wool production except during the spring months. On the highest plane of nutrition the wool production showed little seasonal variation, apart from an initial increase in production during the autumn. On the medium and low planes of nutrition wool growth declined substantially in autumn and winter and increased again in spring. The mean fibre diameter of the wool that was clipped frequently was greater than that of fleece wool obtained from the opposite midside at shearing. Further, in the groups on medium and low planes of nutrition estimates of fleece weight based on the combined weight of periodical clippings were greater than actual fleece weights. It is concluded that, in the dry Victorian summer, wool production is influenced by the plane of nutrition in the previous spring for a short period only, and that in autumn and winter it is dependant almost entirely on the feed immediately available.

scholarly journals Influence of the level of dietary phosphorus on the voluntary intake of energy and metabolic utilization of nutrients in the growing rat

1979 ◽  
Vol 42 (1) ◽  
pp. 127-137 ◽  
Author(s):  
Y. Henry ◽  
L. Gueguen ◽  
A. Rérat
Keyword(s):  
Body Weight ◽  
Energy Consumption ◽  
Weight Gain ◽  
G Protein ◽  
Energy Intake ◽  
Normal Level ◽  
Body Weight Gain ◽  
Male Rats ◽  
Protein Deposition ◽  
Growing Rat

1. An experiment was carried out on growing male rats to study the effects of a phosphorus deficiency on voluntary energy intake, estimated by the separate-feeding technique, as well as the consequences on growth and metabolic utilization of energy, protein and minerals. After a preliminary period of P deprivation, three groups of twelve animals were fed separately and simultaneously two dietary rations. A protein ration provided 1.2 g protein/d to which was added one of three levels of P in the form of monosodium phosphate: a normal level of 35.4 mg/d (treatment A), half the normal level (19.1 mg/d, treatment B) or one-quarter the normal level (9.6 mg/d, treatment C). Another protein-free ration was fed ad lib.2. It was only when the level of P represented one quarter the normal level that a significant decrease in growth rate was noticed, accompanied by a definite decrease in daily energy consumption. The food conversion ratio (g dry matter intake/g body-weight gain) increased whereas the protein efficiency ratio (g body-weight gain/g protein intake) was lower. The nitrogen and energy retentions changed in the same way: both dectreased with treatment C compared to treatment A and B. Independently of the protein supply, the voluntary energy intake was closely related to the intensity of protein retention, which depended on the dietary level of P. The daily retention of P only slightly decreased at the lowest ingestion level (9.6 mg/d in treatment C), compared to that of the higher levels. On the other hand, the amount of calcium retained regularly decreased with the decreasing supply of P. The result of this was a progressive reduction in retained Ca:P as the level of P decreased.3. From these results it appeared that the primary effect of a P deficiency in the growing rat was a decrease in bone mineralization. At a more advanced stage, the tissue P levels were affected and the resulting metabolic alterations reduced protein deposition and consequently the voluntary energy intake. The level of energy consumption, in separate-feeding, is more generally dependent on the level of protein deposition allowed by the limiting factor for growth, either protein, minerals or vitamins.

The influence of the poll gene and of castration on production characters of male Merino sheep

1963 ◽  
Vol 3 (11) ◽  
pp. 262 ◽  
Author(s):  
RB Dun
Keyword(s):  
Body Weight ◽  
Merino Sheep ◽  
Wool Production ◽  
Body Weights ◽  
Ram Lambs ◽  
Fleece Weight ◽  
Marking Time ◽  
Staple Length

Two drops of lambs were produced in spring 1959 and 1961 by mating poll rams (Pp) to knobbed ewes (pp). At marking time (1-4 wk), a random half of ram lambs of the Pp group and of the pp group were castrated. The rams and wethers were grown together and the following measurements were made-greasy fleece weight, clean scoured yield, clean fleece weight, staple length, crimps per inch, fold score, body weights at weaning and 17 months, and mortality to 17 months. The analyses showed no evidence of significant poll-genotype x sex interactions caused by superiority of Pp rams and pp wethers. It was concluded that segregation of the poll gene had no influence on any of the production characters studied. Rams cut six per cent more clean wool than wethers, but due to the large difference in size, clean wool production per lb body weight favoured wethers by 19 per cent. The ram's wool showed six per cent finer crimping than the wethers' fleece.

scholarly journals Body Weight Gain and Carcass Quality of the Hybrid Chicken Derived from the Crossing between Female F1 Kampung Super and Male F1 Kampung-Broiler

2021 ◽  
Vol 6 (2) ◽  
pp. 60934
Author(s):  
Utin Elsya Puspita ◽  
Hendry T.S.S.G. Saragih ◽  
Tety Hartatik ◽  
Budi Setiadi Daryono
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
The Body ◽  
Chicken Breast ◽  
Carcass Quality ◽  
Potential Alternative ◽  
Quality Measurements ◽  
Meat Type

This research was conducted to observe the body weight gain and carcass quality of the hybrid chicken derived from the crossing between female F1 Kampung Super and male F1 Kampung-Broiler. The weekly weight gain for seven weeks and carcass quality, including breast yield, protein content, lipid content, moisture, and pH were measured with each group consists of six individuals. The chickens were slaughtered for meat quality measurements on the 7th week. The results showed that the hybrid chickens’ weight at the 7th week (888.22±139.63) was higher than layer (467.06±85.7) and pelung (436.39±42.33). The hybrid chicken’s breast yield (3.20%) was significantly higher than pelung’s (1.66%). These characteristics of hybrid chicken breast muscle lead to the conclusion that hybrid chicken is a potential alternative meat-type chicken with local chicken meat characteristics and has relatively fast growth.

Follicle curvature score and its relationships with wool production

1983 ◽  
Vol 37 (3) ◽  
pp. 449-454
Author(s):  
R. Gonzàlez ◽  
A. Lombardini ◽  
W. Ibañez
Keyword(s):  
Body Weight ◽  
Correlation Coefficient ◽  
Fibre Diameter ◽  
Wool Production ◽  
Fleece Weight ◽  
Australian Merino ◽  
Staple Length

ABSTRACTMedium-wool Australian Merino rams were sampled in 1978 and 1979 to estimate the relationships between the follicle curvature score, fleece and body characteristics.As a high correlation coefficient between two independent observers was found in both years, only one observer was used to correlate follicle curvature score with wool production.Repeatability of the follicle score between lambs at weaning and 14- to 15-month-old rams was 0·61*** and 0·65***.Clean fleece weight was significantly correlated with greasy fleece weight (0·8***, 0·9***), clean scoured yield (0·6***, 0·7***), staple length (0·4*, 0·5**) and crimps per cm (-0·3, -0·4*), but the correlation was very low with fibre diameter (0·01, 0·06).The correlation of clean fleece weight with body weight at 14 to 15 months varied between 0·2 and 0·5 (P < 0·001).Follicle curvature score was significantly correlated with clean fleece weight (-0·5**), clean scoured yield (0·6***, 0·7***), staple length (-0·4*, -0·7***), fibre diameter (0·3, 0·6***) and crimps per cm (0·4*. 0·6***). Non-significant correlations of follicle curvature score with greasy fleece weight (–0·2) and body weight at 14 to 15 months (–0·04, –0·1) were found.Depending on whether the proportion of superior 14- to 15-month-old rams which are to be retained for breeding is 0·10 or 0·05, then, according to our data, the proportion of lambs that can be culled at weaning (with an accuracy of P < 0·05) is 0·31 or 0·42, respectively.

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