A note on the growth and carcass quality of Makui and Moghani lambs on different diets

1977 ◽  
Vol 25 (3) ◽  
pp. 393-396 ◽  
Author(s):  
A. Nik-Khah ◽  
R. Assadi-Moghaddam
Keyword(s):  
Carcass Characteristics ◽  
Live Weight ◽  
Corn Silage ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Beet Pulp ◽  
Alfalfa Meal ◽  
The Mean ◽  
Different Levels

SUMMARYThe effects of three diets on the performance and carcass quality of lambs of the Makui and Moghani breeds of sheep were studied. Thirty-two Makui and 33 Moghani lambs, 6 to 7 mo of age, were kept on feedlots and given three diets for 77 days. The diets each contained a barley, alfalfa meal and corn silage base plus different levels of urea, molasses and dried beet pulp.The average daily live-weight gains (ADG) of lambs fed on diets I (no urea), II (0·8% urea) and III (1·4% urea) were 218, 208 and 204 g respectively, while feed conversion ratios (FCR) were 6·3, 6·6 and 6·8 respectively. The overall ADG for Makui and Moghani lambs were 213·6 and 206·6 g respectively and the FCR were 6·4 and 6·9 respectively. None of these differences was statistically significant. The mean dressing percentages of lambs fed on diets I, II and III were 52·5, 52·7 and 53·9 respectively, and those of Makui (53·1) and Moghani lambs (53·3) were similar. There were only minor differences between the carcass characteristics of the two breeds and these were not influenced by the different diets.

THE EFFECTS OF SEX AND AGE OF MALE AT CASTRATION ON GROWTH AND CARCASS QUALITY OF YORKSHIRE SWINE

1961 ◽  
Vol 41 (1) ◽  
pp. 30-39 ◽  
Author(s):  
L. A. Charette
Keyword(s):  
Growth Rate ◽  
Iodine Number ◽  
Feed Efficiency ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Carcass Quality ◽  
Selection Of ◽  
Effect On Growth

The effects of sex and age of castration of males on growth rate, feed efficiency and carcass characteristics in bacon type swine were measured using 16 pigs each as gilts, entire boars, and boars castrated at birth, 6, 12, 16, and 20 weeks of age. Castration at 20 weeks was too late since some pigs reached 200 pounds live weight before that age. Boars consumed less feed daily than barrows and gilts, were thinner in loin fat, and yielded a higher percentage of shoulder than gilts. The carcasses of boars and gilts were longer, had less fat covering over the shoulder and back, a larger area of loin, and a higher iodine number than those castrated late. Acceptability tests showed that sex or age of castration did not affect the flavour, odour, or tenderness of the meat.Purebred breeders can delay castration for better selection of boars without any serious effect on growth, physical carcass characteristics, and feed requirements. Although the market discriminates against boars, it appears questionable whether castration is necessary when boars are slaughtered at 200 pounds before they reach the age of 150 days.

scholarly journals Growth performance and safety of meat from cattle feedlot finished with monensin in the ration

2018 ◽  
Vol 39 (2) ◽  
pp. 697 ◽  
Author(s):  
Mikael Neumann ◽  
Robson Kyoshi Ueno ◽  
Julio Cezar Heker Junior ◽  
Eloize Jaqueline Askel ◽  
André Martins de Souza ◽  
...  
Keyword(s):  
Dry Matter ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Corn Silage ◽  
Dry Matter Intake ◽  
Control Group ◽  
Productive Performance ◽  
Feed Conversion ◽  
Edible Tissues ◽  
Fat Thickness

Monensin is an ionophore antibiotic, the inclusion of which in the feed of beef cattle favors the best use of feed nutrients, via ruminal modulation. However, there are concerns regarding the residence of residues in the carcass from metabolism of monensin. The objective of this study was to evaluate the productive performance, carcass characteristics, serum parameters, tissue residual depletion and economic benefit of finishing of young bulls in confinement with monensin in the ration. Thirty-six animals were confined, and given 50% corn silage feed and 50% more concentrated feed. The experimental design was completely randomized, with two treatments (with or without monensin) and 10 replicates for the control group and eight for the monensin group. The use of monensin reduced the dry matter intake in relation to live weight (2.36% vs 2.55%), and improved feed conversion (8.61 vs 10.06 kg kg?1); the animals presented higher live weight (511 vs 494 kg), higher warm carcass weight (285 vs 272 kg) and an increase in fat thickness (4.97 vs 4.25 mm) compared to control animals. These increases in performance gave higher economic results, with a profit margin of R$ 122.84 per animal. A waiting period of 16 h before slaughter resulted in monensin concentrations below 0.25 µg kg?1 in edible organs and tissues, values well below those permitted by legislation. The use of monensin for young bulls in confinement promoted improvements in productive and economic performance, without leaving residues in edible tissues.

A note on the carcass quality of Dairy Shorthorn, Red Friesian, Red Holstein, Danish Red, Meuse-Rhine-Yssel, Simmental and North Devon progeny of Dairy Shorthorn dams

1983 ◽  
Vol 36 (2) ◽  
pp. 295-297
Author(s):  
P. M. Hocking
Keyword(s):  
Standard Error ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Carcass Quality ◽  
Improvement Programme ◽  
Breed Improvement ◽  
Average Standard Error ◽  
Feeding Systems

ABSTRACTCarcass characteristics of 246 bulls and steers by Dairy Shorthorn (DS), Red Friesian (RF), Red Holstein (RH), Danish Red (DR), Meuse-Rhine-Yssel (MR), Simmental (SM) and North Devon (BB) bulls were recorded as part of a breed improvement programme. Carcasses of animals on grass-feeding systems were older, had lower fat and conformation scores and higher estimated lean yield than on intensive cereal systems, BB were fatter, and MR and SM leaner, than the remaining breed groups which were similar to DS and SM progeny had high conformation scores. Estimated lean in the live weight (g/kg) relative to DS was RF +5, RH −3, DR +5, MR +16, SM +16 and BB +6 with an average standard error of 3.

Single cereal diets for bacon pigs 1. The effects of diets based on barley, wheat, maize meal, flaked maize or sorghum on performance and carcass characteristics

1969 ◽  
Vol 11 (3) ◽  
pp. 325-335 ◽  
Author(s):  
D. J. A. Cole ◽  
E. G. Clent ◽  
J. R. Luscombe
Keyword(s):  
Energy Content ◽  
Carcass Characteristics ◽  
Live Weight ◽  
The Other ◽  
Carcass Quality ◽  
Digestible Energy ◽  
Maize Meal ◽  
Low Levels ◽  
Amino Acid Balance

SUMMARYTwo experiments were carried out to compare the performance and carcass quality of pigs given diets based on barley, wheat or maize meal, and another two experiments comparing these cereals, flaked maize and sorghum. In general, differences in the utilization of feed for live-weight gain could be related to differences in the digestible energy content of the cereals used in the diet, although in some experiments pigs behaved atypically on individual diets. Flaked maize was consistently inferior to the other cereals in the efficiency of conversion of its digestible energy, possibly because of its poorer amino acid balance and its low levels of lysine and tryptophan in relation to energy. Differences between experiments in the performance of pigs fed on the various diets are also discussed. Differences between treatments in killing-out percentage and predicted lean percentage were small, and carcasses of pigs from all treatments were acceptable for bacon curing.

scholarly journals The effect of supplementation of liquid and crystalline lysine to barley-distillers solids diet on the performance and carcass quality of pigs

1992 ◽  
Vol 1 (6) ◽  
pp. 559-567
Author(s):  
Jarmo Valaja
Keyword(s):  
Growth Rate ◽  
Conversion Efficiency ◽  
Live Weight ◽  
Growing Pigs ◽  
Crystalline Form ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
High Level

The response to dietary lysine of liquid or crystalline form was examined in pigs fed on cereal protein dietsover the range of live weight from 25.0 to 95.0 kg. Forty individually fed growing pigs (20 gilts and 20castrated males) were allocated to four isonitrogenous diets consisting of barley, undehydrated distillers solids and a mixture of minerals and vitamins with lysine supplementation of 0.9 or 3.2 g pure lysine per kg DM in liquid or crystalline form to provide 7.1 or 9.1 g/FU total lysine, respectively. The pigs were given feed on a restricted scale twice daily. A high level of lysine supplementation significantly increased the growth rate and improved the feed conversion efficiency (p

A note on the effect of Probioticum feed additive on the live-weight gain, feed conversion and carcass quality of bacon pigs

1977 ◽  
Vol 25 (1) ◽  
pp. 95-98 ◽  
Author(s):  
G. S. Burnett ◽  
E. L. Neil
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Live Weight ◽  
Feed Additive ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Significant Difference ◽  
Ad Libitum ◽  
Zinc Bacitracin

SUMMARY1. Two experiments were conducted, one with pigs fed individually on a restricted scale of feeding, and one with pigs fed ad libitum in groups, to test Probioticum as a feed additive with and without nitrovin and zinc bacitracin.2. Growth rate, feed conversion, killing-out percentage and carcass quality were measured.3. No significant difference was shown in any of the characteristics measured between diets containing any of the additives, singly or in combination.

scholarly journals Growth performance, carcass characteristics and organoleptic properties of broiler finisher fed graded levels of ginger root meal (grm) basal diets.

2018 ◽  
Vol 6 (4) ◽  
Author(s):  
E. T.E Ehebha, ◽  
S. E Okosun ◽  
E. E. Adomeh ◽  
Abiodun Stanley Eguaoje
Keyword(s):  
Growth Performance ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Feed Conversion ◽  
Organoleptic Quality ◽  
Positive Effects ◽  
Randomized Design ◽  
Edo State ◽  
Dietary Treatments

An experiment to compare the effect of varying inclusion levels of ginger root meal (zingiber officianale)on growth performance, carcass and organoleptic qualities of finishing broiler chicken was conducted in the Poultry Unit of the Teaching and Research Farm of Department of Animal Science Ambrose Alli University, Ekpoma, Edo State. 150 ANAK 2000 day old chicks were randomly assigned to five dietary treatments with diet 1 being the control (0%) and diets 2, 3, 4 and 5 contain the inclusion levels of ginger root meal at 0.5, 1.0, 1.5 and 2.0% respectively. In a complete randomized design (CRD),50 birds were assigned to each treatments with 10 birds per replicate. Performance parameters, carcass characteristics and organoleptic qualities were assessed. Result on the performance characteristics revealed that average final weight, feed intake, weight gain and feed conversion ratio were significantly (P<0.05) higher in control similar to those on 1.5%GRM. Carcass characteristic study revealed that live weight, slaughtered, defeathered, eviscerated weights and dressing percentages were significantly (P<0.05) higher in birds fed the control similar to those on 1.5%GRM. Weight of shanks, breast muscles, neck and back were significantly influenced (P<0.05) with highest values recorded among birds fed 1.5%GRM. For organoleptic quality, appearance, flavour, juiciness, overall acceptance and calculated overall acceptance were all significantly (P<0.05) affected. It is therefore concluded that the dietary inclusion of ginger root meal in broiler diets at 1.5% inclusion levels had positive effects on the growth performance, carcass characteristics of the birds and organoleptic quality of the chicken meat.

The effect of hormones on growth rate and carcass quality of fattening lambs and hoggets

1960 ◽  
Vol 2 (01) ◽  
pp. 83-92 ◽  
Author(s):  
T. D. Burgess ◽  
G. E. Lamming
Keyword(s):  
Growth Rate ◽  
Rectal Prolapse ◽  
Oral Administration ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Carcass Quality ◽  
Increase Rate ◽  
Daily Gain

The effects on average daily gain of a 12 mg. implant of diethylstilboestrol has been tested in male suckling lambs and in male hoggets. In both types stilboestrol produced some mammary stimulation. One case of rectal prolapse was encountered in the hoggets. In suckling lambs, treatment did not significantly increase rate of gain nor significantly affect any of several carcass characteristics studied. In hoggets, treatment produced a highly significant increase in rate of gain (33%), a highly significant increase in pelt weight and a highly significant decrease in the percentage of fat in the last rib section. It produced a non-significant increase in muscle and bone in the last rib section. Carcass score and dressing percentage were not significantly affected by treatment.The oral administration of L-thyroxine to suckling female lambs from 30–70 lb. live-weight did not significantly affect the rate of gain or the carcass characteristics studied.

scholarly journals Evaluation of American and British rations for growing pigs

1966 ◽  
Vol 20 (2) ◽  
pp. 273-282 ◽  
Author(s):  
R. S. Barber ◽  
R. Braude ◽  
Zena D. Hosking ◽  
K. G. Mitchell ◽  
W. H. Bruner ◽  
...  
Keyword(s):  
Energy Content ◽  
Live Weight ◽  
Growing Pigs ◽  
The Other ◽  
Carcass Quality ◽  
Restricted Feeding ◽  
Feed Conversion ◽  
High Fat ◽  
Feeding Methods

1. A test was carried out simultaneously in Shinfield, Reading, England, and Columbus, Ohio, USA, using typical British and American rations for growing pigs. The rations were compounded in their country of origin; half of each consignment was used at the home station and the other half shipped to the overseas station. 2. Both restricted feeding and ad lib. feeding methods were used at each station. 3. A similar pattern of results was obtained at Shinfield and Columbus. Pigs receiving the American ration, which was higher in energy content, grew faster and required less feed per kg live-weight gain than pigs receiving the British ration. The higher energy content of the ration was probably responsible also for the poorer carcass quality of the pigs receiving the American ration, particularly the high fat content. The comparison between restricted feeding and ad lib. feeding was not affected by the type of ration. Restricted feeding resulted in slower growth rate, slightly better efficiency of feed conversion and considerably better carcass quality.

Efficacy of Live Vaccines and Specific Prevention in Chicken Infectious Bronchitis

2020 ◽  
Keyword(s):  
Egg Production ◽  
Live Weight ◽  
Economic Damage ◽  
Feed Conversion ◽  
Local Immunity ◽  
Effective Prevention ◽  
Live Vaccines ◽  
Infectious Bronchitis ◽  
Variant Strain

Infectious bronchitis of chickens (IBC) is a highly contagious disease characterized by damage to the respiratory tract. Adult chickens exhibit respiratory symptoms, a 10-50% decrease in egg production, discoloration of the eggshell, deformation of the shell, and a deterioration in the marketability and breeding quality of eggs. The circulation of variant strains in poultry farms of the Russian Federation causes a significant decrease in egg production and the quality of the eggs obtained, causing significant economic damage to industrial poultry farming. The study aimed to presents materials and methods for the industrial and efficient use of live-vaccines against infectious bronchitis of hens from a variant strain. After the use of a live vaccine against infectious bronchitis of chickens from a variant strain, the development, live weight of chickens, and feed conversion during the rearing period were within the standard parameters. in present study, the safety for the growing period with a planned 97.6% was 98.8-98.9%. The uniformity of the herds when transferred to hen - hen was 94-95%. When carrying out immunoprophylaxis of IBS, local immunity is important, which can be ensured using a live spray vaccine - a method starting from the day old. When establishing circulation in the economy of variant strains of IBC virus, it is necessary to introduce vaccination against the variant strain into the scheme of treatment and preventive measures. The research results allow us to conclude that, for the effective prevention of chicken infectious bronchitis, immunization against IBS from variant strains should be introduced into the vaccine prevention scheme.

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