Fattening steers on hay and oats

1973 ◽  
Vol 13 (64) ◽  
pp. 487 ◽  
Author(s):  
LR Corah ◽  
IE Saxton ◽  
AH Bishop ◽  
SA Jackson
Keyword(s):  
Daily Intake ◽  
Late Summer ◽  
Seasonal Distribution ◽  
Economic Implications ◽  
Market Requirements ◽  
Fat Thickness ◽  
The Mean ◽  
Ad Libitum ◽  
Dressing Percentage

Hereford steers aged 18 to 20 months were confined in feedlots and given rations of baled pasture hay and whole oat grain during late summer in two successive years. Mid-season hay ad libitum plus 1.4, 2.7, or 4.1 kg of oats a day were used in experiment 1 and early hay with 1.4, 2.7, or 4.1 kg of oats and mid-season hay with 2.7, 4.1, or 5.4 kg of oats in experiment 2. Steers were slaughtered when they had reached liveweights of approximately 370 kg in the first experiment or 41 6 kg in the second experiment. As the level of oats in the ration increased, the liveweight gain of the steers increased. Those receiving the highest oat rations gaining at 0.8 to 1.1 kg per day. The addition of grain to the diet reduced the time to slaughter, lowered the daily intake of hay, and reduced the quantity of fodder required per unit of liveweight gain. The mean conversion ratios declined by 1.8 units for each additional ten per cent of oats in the ration. The higher levels of grain tended to increase dressing percentage, fat thickness and the quantity of fat in the carcase. The results are discussed in relation to market requirements, availability and relative costs of ration components and the economic implications of fattening in late summer on the price and seasonal distribution on the production of meat. It is concluded that the system would have application in southern Australia for properties raising steers on pasture.

scholarly journals Ergovaline, an endophytic alkaloid. 2. Intake and impact on animal production, with reference to New Zealand

2016 ◽  
Vol 56 (11) ◽  
pp. 1775 ◽  
Author(s):  
A. M. Nicol ◽  
J. L. Klotz
Keyword(s):  
New Zealand ◽  
Daily Intake ◽  
Late Summer ◽  
Animal Production ◽  
Deterrent Effect ◽  
Welfare Implications ◽  
The Mean ◽  
Supplementary Feed ◽  
The Impact ◽  
The Relationship

On the basis of published reports, the daily intake of the alkaloid ergovaline from the consumption of endophyte-containing ryegrass in New Zealand ranges from 0.008 to 0.287 mg ergovaline/kg LW0.75.day. Most of the reports are based on the use of standard endophyte-containing ryegrass and, thus, it is difficult to disassociate the impact of ergovaline consumption from that of lolitrem B. However, physiological effects of ergovaline consumption, such as reduced circulating prolactin concentration, vasoconstriction and elevated core temperature, have been detected at fairly low ergovaline intake, whereas decreased feed intake, liveweight gain and milk production have not generally been observed in animals at an intake below 0.07 mg ergovaline/kg LW0.75.day. Intakes above this value represent only 17% of published values. There are insufficient data to suggest a threshold ergovaline intake associated with heat stress with animal-welfare implications. The relationship between published ergovaline intake and the corresponding ergovaline concentration in pasture is poor (R2 = 0.48), but on average an intake of 0.07 ergovaline/kg LW0.75.day is associated with an ergovaline concentration in ryegrass of 0.70 mg/kg DM. About 16–18% of published ergovaline concentrations in ryegrass pasture exceed this value. The ergovaline concentration in ryegrass is greater in the basal parts of the plant than in the leaf and during the late summer–autumn than in spring. Animals grazing in the lower sward horizons (horizontal grazing plane) are more at risk of high ergovaline intake, although the reduction in grazing intake induced by grazing at low pasture height aids in limiting ergovaline intake. As pasture growth rates decline in late summer, supplementary feed may be used to maintain stocking rate and, if such feeds have zero ergovaline concentration, they serve to dilute the mean dietary ergovaline intake. Ergovaline-containing ryegrass pastures are widely used in New Zealand. It appears that farmers consider the risks of depressed animal production on these pastures to be less than the benefits ergovaline bestows through its deterrent effect of specific insect attack and thus greater survival and pasture persistence.

Productivity of early-weaned lambs fed high-grain diets of wheat, oats or barley with or without lupin grain

1986 ◽  
Vol 26 (3) ◽  
pp. 279 ◽  
Author(s):  
PA Kenney
Keyword(s):  
Weight Gain ◽  
Daily Intake ◽  
Abdominal Fat ◽  
Barley Grain ◽  
Gain Ratio ◽  
Whole Wheat ◽  
Wool Growth ◽  
Ad Libitum ◽  
Dressing Percentage ◽  
Slight Rise

Poll Dorset x (Border Leicester x Merino) lambs were weaned at 6 weeks and fed ad libitum diets of whole wheat, oat or barley grain with 0, 15, 30, 45,60 or 75% lupin grain, or all lupin grain, for 11 weeks. All diets included 10% hay. The lambs adapted to diets containing barley and wheat more quickly than to diets containing oats. Digestibilities of grain DM with hay alone were: wheat 83%, oats 73%, barley 75%, and lupins 83%. Inclusion of lupins in wheat-based diets had no effect on digestibility or intake of feed or weight gain of lambs. Inclusion of lupins with oats increased digestibility ( P < 0.05) and intake of feed (P< 0.05) and caused a slight rise in feed intake:liveweight gain ratio, but greatly reduced feed intake:carcass gain ratio (P< 0.05). Inclusion of lupins with barley increased digestibility and intake of feed (P< 0.05), and caused a slight fall in the feed intake:liveweight gain ratio (P<0.05) and a large fall in the feed intake:carcass gain ratio (P<0.05). Responses to lupins were generally most pronounced as lupin content increased from 0 to 30%. Liveweight, carcass weight, wool growth, abdominal fat and muscle depth at rib 12 were all linearly related to intake of digestible DM (P<0.05). Dressing percentage increased up to a maximum as daily intake of digestible DM increased to 0.55 kg/sheep and then fell (P<0.05). Liveweight was greater, but dressing percentage less, for lambs fed oats than for those fed barley or wheat (P<0.05). Carcass weights of lambs fed different grains were therefore similar at the same intakes of digestible DM.

scholarly journals Salt intake and blood pressure in Iranian children and adolescents: a population-based study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mohammad Hassan Emamian ◽  
Hossein Ebrahimi ◽  
Hassan Hashemi ◽  
Akbar Fotouhi
Keyword(s):  
Blood Pressure ◽  
Rural Areas ◽  
Urban Areas ◽  
Salt Intake ◽  
Daily Intake ◽  
Population Based ◽  
World Health ◽  
Second Phase ◽  
Salt Consumption ◽  
The Mean

Abstract Background Previous studies have reported a high prevalence of hypertension in Iranian students, especially in rural areas. The aim of this study was to investigate the daily intake of salt in students and its association with high blood pressure. Methods A random sub-sample was selected from the participants of the second phase of Shahroud schoolchildren eye cohort study and then a random urine sample was tested for sodium, potassium and creatinine. Urine electrolyte esexcretion and daily salt intake were calculated by Tanaka et al.’s formula. Results Among 1455 participants (including 230 participants from rural area and 472 girls), the mean age was 12.9 ± 1.7 year and the mean daily salt intake was 9.7 ± 2.6 g (95% CI 9.5–9.8). The mean salt consumption in rural areas [10.8 (95% CI 10.4–11.2)] was higher than urban areas [9.4 (95% CI 9.3–9.6)], in people with hypertension [10.8 (95% CI 10.3–11.3)] was more than people with normal blood pressure [9.4 (95% CI 9.3–9.6)], and in boys [9.8 (95% CI 9.7–10.0)] was more than girls [9.3 (95% CI 9.1–9.6)]. Higher age, BMI z-score, male sex and rural life, were associated with increased daily salt intake. Increased salt intake was associated with increased systolic and diastolic blood pressure. Conclusion Daily salt intake in Iranian adolescents was about 2 times the recommended amount of the World Health Organization, was higher in rural areas and was associated with blood pressure. Reducing salt intake should be considered as an important intervention, especially in rural areas.

A note on the performance and management of calves reared on cold acidified milk replacer fed ad libitum

1983 ◽  
Vol 36 (1) ◽  
pp. 147-150 ◽  
Author(s):  
W. S. Thickett ◽  
N. H. Cuthbert ◽  
T. D. A. Brigstocke ◽  
M. A. Lindeman ◽  
P. N. Wilson
Keyword(s):  
Milk Powder ◽  
Skim Milk ◽  
Live Weight ◽  
Skim Milk Powder ◽  
Barley Straw ◽  
Milk Replacer ◽  
Bull Calves ◽  
The Mean ◽  
Ad Libitum ◽  
Dry Food

ABSTRACTResults are presented from six trials dealing with aspects of management on the cold ad libitum system of calf rearing using an acidified milk replacer containing over 600 g skim milk powder per kg.Thirty-six calves were housed in pens of six for each trial and were fed through a teat and pipeline from a storage barrel. Acidified milk replacer, pH 5·6, was mixed cold at 125 g/1 and made available ad libitum to 3 weeks. A rationed allowance was given daily, on a reducing scale, over the following 2 weeks with weaning completed at 35 days. A pelleted dry food containing 180 g crude protein per kg, together with water in buckets and barley straw in racks, was available ad libitum throughout. Each trial lasted 8 weeks. Results for the mean of the six cold ad libitum trials involving 216 calves were compared with the mean results of 10 conventional bucket-fed trials carried out separately at the same unit, involving 912 calves. All calves were purchased British Friesian male (bull) calves.Calves on the ad libitum system showed improved live-weight gains of 9·4 kg at 3 weeks, 8·8 kg at 5 weeks and 7·5 kg at 8 weeks, compared with the conventional system. The consumption of milk replacer powder was higher in ad libitum trials at 29·4 kg cf. 12·5 kg by bucket but intake of pelleted dry feed was lower on the ad libitum system at 50·7 kg cf. 71·3 kg to 8 weeks. Calf appearance scores were significantly improved on the ad libitum system which gave the main improvement in performance in the first 3 weeks.

Abdominal Laser Lipolysis Using a Microprocessor-Controlled Robotic Arm with Non-Contact Heating and Cooling

2021 ◽  
Author(s):  
Thomas Fiala
Keyword(s):  
Cooling System ◽  
Subcutaneous Fat ◽  
Treatment Protocol ◽  
Abdominal Fat ◽  
Abdominal Circumference ◽  
Ordinal Scale ◽  
Robotic Arm ◽  
Ultrasound Measurement ◽  
Fat Thickness ◽  
The Mean

Abstract Background A novel FDA-cleared device uses a 1064 nm laser to non-invasively induce apoptosis for lipolysis of subcutaneous abdominal fat while maintaining comfortable skin temperatures with a proprietary jet cooling system (eon ®, Dominion Aesthetic Technologies, Inc.; San Antonio, TX). A programmable articulated robotic arm moves the treatment head without any subject contact, maintaining an appropriate three-dimensional treatment path, compensating for patient movement. Objectives The goal of this prospective, single center, open-label study was to demonstrate the safety and effectiveness of this device for reducing subcutaneous abdominal fat using an updated power delivery curve. Methods Male and female subjects with Fitzpatrick skin types I-VI (N=26) were treated. Four abdominal zones up to 150 cm 2 each, customized in size and location for body habitus were treated. Each zone underwent a single 20-minute treatment session. Follow-up visits occurred after 6 and 12 weeks. Using a standardized protocol, ultrasound measurement of subcutaneous abdominal fat thickness, abdominal circumference, reported patient satisfaction and digital images were obtained. Results The mean treatment area was 378.5 cm 2. At Week 12, there was a 21.6% mean reduction in abdominal subcutaneous fat thickness and a 4.1-cm (1.6-inch) mean reduction in abdominal circumference. Most subjects (84.6%) were satisfied or very satisfied with their results. The mean pain score was 2.5 on an 11-point ordinal scale. There were no non-responders. Only two adverse events were noted: mild transient erythema (n=1, 3.8%) and localized subcutaneous firmness (n=1, 3.8%) which resolved without intervention within 12 weeks. Conclusions This contact-free device is safe and effective for reducing subcutaneous abdominal fat and represents an improvement on the prior treatment protocol.

A comparison of Charolais × Jersey and Friesian animals for vealer and steer beef production

1978 ◽  
Vol 18 (93) ◽  
pp. 505
Author(s):  
FJ Mickan ◽  
SA Spiker ◽  
RH Hallett
Keyword(s):  
Milk Intake ◽  
Local Market ◽  
Beef Production ◽  
Eye Muscle ◽  
Breed Difference ◽  
Significant Difference ◽  
Fat Thickness ◽  
Dressing Percentage

Charolais sires were mated to Jersey dams and the progeny compared with Friesians for vealer (33 weeks) and steer (90 weeks) beef production. Nurse cows double-suckled one vealer of each breed. No significant difference in growth to slaughter between the Charolais x Jersey (C x J) and Friesian (0.79, 0.70 kg day-1 respectively) was recorded. The C x J vealers produced a significantly heavier carcase. Neither breed had sufficient fat cover (< 0.3 mm) for vealer production. No breed difference existed in the edible meat and fat proportions but the Friesian carcase had a larger percentage of bone. C x J had a significantly greater proportion of hindquarter in the carcase than the Friesian but no breed difference was recorded for either high or low priced cuts. Plunketting showed no difference in milk intake between breeds, but 24-hourly observations revealed that the C x J animals were usually the first to arrive at and last to leave the suckled cow. Steers double-suckled to weaning (1 2 weeks) and then run together until slaughtering gained 0.56 kg animal-1 day-1. There was no breed difference in carcase weights but the C x J had a significantly higher dressing percentage (53.1 vs. 50.5) and 25.3 per cent greater area of eye muscle. Again, fat thickness of the C x J (2.1 mm) and Friesian (1.8 mm) was far below the optimum (7-10 mm) required for the local market.

Growth and N status of Populus in mixture with red alder on recent volcanic mudflow from Mount Saint Helens

1990 ◽  
Vol 20 (1) ◽  
pp. 84-90 ◽  
Author(s):  
Paul E. Heilman
Keyword(s):  
Late Summer ◽  
Height Growth ◽  
Phosphorus Fertilization ◽  
Cross Sectional ◽  
Red Alder ◽  
Total N ◽  
Foliar N ◽  
N Concentration ◽  
The Mean ◽  
Foliar N Concentration

Eleven months after the May 1980 eruption of Mount Saint Helens in southeastern Washington, United States, three Populus clones were planted in an experiment on the Toutle River mudflow deposit. The trees grew at an abnormally slow rate and by 3 years were overtopped by a dense stand (14 600 ± 3600 trees/ha) of red alder seeded naturally onto the site. Over the 6-year period of the study, the total N content of the soil increased an average of 56 kg•ha−1•year−1•. Foliar N concentration in Populus increased significantly from a mean late summer – early autumn value in the 2nd year (1982) of 0.69% N to a value of 2.06% N at the end of the seventh growing season. The mean annual height growth of the largest Populus averaged <0.5 m/year in the first 3 years, increasing to an average of over 1.0 m/year in the 5th and 6th years. Fertilizer treatments with N (as urea) and N + P (as urea plus treble superphosphate) placed in the soil near the individual Populus at a maximum rate of 5.3 g N/tree increased height growth in the year of fertilization (1982) and the following year (the response in height growth for the 2 years totaled 64%). After 1984, no significant effects of fertilizer on height growth, total height, or diameter were evident. Nitrogen fertilization significantly increased foliar N concentration (1.54% N with the highest N treatment vs. 0.69% N in the control) in the year of treatment only. Phosphorus fertilization had no significant effect on growth or foliar P concentration. At 6 years, only 2% of the Populustrichocarpa Torr. & Gray clone and 13% of the tallest Populus hybrid were equal to or above the mean height of alder dominants and codominants (6.2 m). Additionally, the diameter growth of Populus was severely limited: the trees had only 8% of the cross-sectional area of "normal" trees for their height. Results indicated that on sites of low N such as the mudflow, Populus may not compete satisfactorily in mixture with alder. Such behavior is in sharp contrast to sites of high N, where red alder cannot compete with Populus.

The effect of antibiotic dietary supplements on the carcass measurements and dressing percentage of bacon pigs

1955 ◽  
Vol 46 (2) ◽  
pp. 173-179 ◽  
Author(s):  
G. Harrington ◽  
J. H. Taylor
Keyword(s):  
Growth Rate ◽  
Vitamin B12 ◽  
Dietary Supplements ◽  
Vegetable Protein ◽  
Animal Protein ◽  
Feeding Trials ◽  
The Mean ◽  
Dressing Percentage ◽  
And Control

1. Certain carcass measurements (length, shoulder and mid-back fats, belly thickness and dressing percentage) made on a total of 402 bacon pigs from four antibiotic feeding trials have been analysed.2. The length of the carcasses showed more variation between pens treated with various doses of penicillin than between control pens or pens treated with aureomycin. This greater variation in length was related to the greater variation in growth rate between the penicillin treatments. No differences in the mean lengths of control, penicillin and aureomycin treatments were found.3. Back fat measurements and belly thickness showed no differences between aureomycin, penicillin and control treatments in overall tests.4. Aureomycin consistently gave higher dressing percentages than penicillin. Animal protein also gave higher dressing percentages than vegetable protein, but no effect of vitamin B12 on this quantity was found.

THE EFFECT OF INGESTED CHLORTETRACYCLINE ON SOME HYDROLASES AND ORGANS ASSOCIATED WITH THE DIGESTIVE PROCESS IN GROWING PIGS: II. PROTEASE, AMYLASE, AND GELLULASE ACTIVITY OF THE CONTENTS OF THE SMALL INTESTINE AND OF THE CECUM; WEIGHTS OF SMALL INTESTINE AND MUCOSA

1957 ◽  
Vol 35 (3) ◽  
pp. 195-202 ◽  
Author(s):  
M. A. A. Vonk ◽  
L. W. McElroy ◽  
R. T. Berg
Keyword(s):  
Small Intestine ◽  
Dry Matter ◽  
Cellulase Activity ◽  
Dry Weight ◽  
Growing Pigs ◽  
Weanling Pigs ◽  
Intestinal Contents ◽  
Wet Weight ◽  
The Mean ◽  
Ad Libitum

Four treatments, involving differences in method of feeding and interval between last feed and slaughter, were employed in a study of the effect of dietary chlortetracycline on protease, amylase, and cellulase activity in the intestinal and cecal contents of 16 pairs of weanling pigs. Most consistent results were obtained with six pairs which were limited pair-fed except for the final feeding during which feed was available ad libitum for a 4-hour period ending 18 hours before slaughter. The mean total activities of all three hydrolases in the contents of the small intestines and of the ceca of the antibiotic-fed animals of these six pairs were significantly greater than in those of the control animals. Expressed as activity per gram dry matter of intestinal contents, significantly higher values for protease and amylase, but not for cellulase, were observed in the pigs that had received chlortetracycline. When the combined results obtained from all 16 pairs of the experimental animals were analyzed, the results showed that on a basis of activity per gram dry matter of intestinal contents, ingested chlortetracycline was associated with significant increases in amylase and cellulase but not in protease activity. Protease, amylase, and cellulase activities per gram dry matter of cecal contents were higher for pigs fed the antibiotic than for their controls. The mean wet weight of the empty small intestine and the mean dry weight of the mucosa scraped from the anterior 3-meter section of the small intestine were lower for the chlortetracycline-fed animals, but the differences were not statistically significant.

scholarly journals The effect of slaughter age and sex class to carcass characteristic of Red Brahman Crossbred Cattle

2021 ◽  
Vol 888 (1) ◽  
pp. 012028
Author(s):  
S S C Maulid ◽  
A Susilo ◽  
D Purwanto ◽  
Kuswati
Keyword(s):  
Carcass Weight ◽  
Duncan Multiple Range Test ◽  
Crossbred Cattle ◽  
Slaughter Weight ◽  
Carcass Characteristic ◽  
Slaughter Age ◽  
Fat Thickness ◽  
Dressing Percentage ◽  
Range Test ◽  
Age And Sex

Abstract This research was conducted to examine the effect of slaughter age and sex class to carcass characteristic from Red Brahman Crossbred Cattle. The research materials were 126 heads (grouped by slaughter age (<1,5 years, 2-2,5 years, and 3 years) and sex class (bull and steer)) with taken from KASA Company, rested for 12-24 hours, and slaughtered in AM FARM abattoir with halal MUI slaughter methods. The research method was used field experiment. The data of research were analysis by using Complete Randomized Factorial Design (2X3) and Duncan Multiple Range Test if there were differences. Parameters of carcass characteristic were slaughter weight, hot carcass weight, dressing percentage, carcass components percentage (meat, bone, fat), MBR, MFR, rib eyes area, and 12th fat thickness of ribs. The results of this research showed that slaughter age and sex class has significantly (P<0,05) affect to slaughter weight and hot carcass weight. Interactions of slaughter age and sex class has significantly (P<0,05) affect dressing percentage, bone and meat percentage, MBR and MFR, and has not significant (P>0,05) rib eyes area and fat thickness. From these results, it can be concluded that slaughter age and sex class affect carcass characteristics of Red Brahman Crossbred Cattle.

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