The effects of milk feeding on the pre- and post-weaning growth of calves, and on stomach development at weaning

1976 ◽  
Vol 87 (2) ◽  
pp. 357-363 ◽  
Author(s):  
A. G. Kaiser

SummaryThe pre-weaning and post-weaning gain, oaroass production and stomach development of oalves fed four levels of whole milk (8%, 10%, 12% and 14% of live weight daily) was studied in two experiments. Calves had access to pasture at all times and were weaned at 12 weeks. Pre-weaning gain, weaning live weight, and carcass weight at weaning all increased as the quantity of milk increased. At the 14% level, male calves reached heavier weaning live weights and produced heavier carcasses than females. Reticulo-rumen weight, when expressed as a percentage of total stomach weight, was significantly reduced with increased milk feeding. Calves reared on the higher quantities of milk gained more slowly after weaning, this being attributed to their poorer reticulo-rumen development at weaning.

2017 ◽  
Vol 16 (2) ◽  
pp. 29-42
Author(s):  
R. A. SOBAYO ◽  
S. B. MUHAMMAD ◽  
O. O. OSO ◽  
O. M. SOGUNLE ◽  
Y. A. ADEJOLA ◽  
...  

This study was conducted to investigate the effects of feeding diets containing Neem Leaf Meal (NLM), Garlic Meal (GM) and their combinations (NLM + GM) on growth performance and carcass yield of finishing broiler. A total of 180 day-old Cobb broiler chickens were divided into twelve groups of fifteen chicks with three replicate of five chicks each. The diet contained NLM, GM and NLM + GM at four levels of inclusion (0mg/kg, 500mg/kg, 1000mg/kg and 1500mg/kg). The experiment was arranged in a 3 × 4 factorial layout in a completely randomized design. Additives and levels of inclusion had no significant (P>0.05) influence on performance parameters except feed intake which was influenced (p<0.05) by NLM + GM and 1000mg/kg levels of inclusion. Final live weight (2516.67g/bird), weight gain (1742.00g/bird), daily weight gain (62.2g/bird/day) and feed conversion ratio (2.32) were improved (p<0.05) at 1500mg/kg levels of inclusion of NLM + GM. Thigh (11.68%), wings (8.44), neck (4.23%) and gizzard (2.13%) of birds fed GM were improved (P<0.05) than those of NLM. Carcass weight was influenced (p<0.05) by additives at various inclusion levels with wings (9.01%), head (3.39%), neck (4.52%), shanks (4.49%) and gizzard (2.42%) highest (p<0.05) in birds fed GM at 1500mg/kg levels of inclusion than those of 0mg/kg levels of inclusion. It was concluded that the use of NLM + GM as additives yielded commendable result on performance and carcass weight of finishing broiler birds   This study was conducted to investigate the effects of feeding diets containing Neem Leaf Meal (NLM), Garlic Meal (GM) and their combinations (NLM + GM) on growth performance and carcass yield of finishing broiler. A total of 180 day-old Cobb broiler chickens were divided into twelve groups of fifteen chicks with three replicate of five chicks each. The diet contained NLM, GM and NLM + GM at four levels of inclusion (0mg/kg, 500mg/kg, 1000mg/kg and 1500mg/kg). The experiment was arranged in a 3 × 4 factorial layout in a completely randomized design. Additives and levels of inclusion had no significant (P>0.05) influence on performance parameters except feed intake which was influenced (p<0.05) by NLM + GM and 1000mg/kg levels of inclusion. Final live weight (2516.67g/bird), weight gain (1742.00g/bird), daily weight gain (62.2g/bird/day) and feed conversion ratio (2.32) were improved (p<0.05) at 1500mg/kg levels of inclusion of NLM + GM. Thigh (11.68%), wings (8.44), neck (4.23%) and gizzard (2.13%) of birds fed GM were improved (P<0.05) than those of NLM. Carcass weight was influenced (p<0.05) by additives at various inclusion levels with wings (9.01%), head (3.39%), neck (4.52%), shanks (4.49%) and gizzard (2.42%) highest (p<0.05) in birds fed GM at 1500mg/kg levels of inclusion than those of 0mg/kg levels of inclusion. It was concluded that the useof NLM + GM as additives yielded commendable result on performance and carcass weight of finishing broiler birds Keywords: Neem, garlic, broilers, performance, carcass characteristics. 


2020 ◽  
Vol 41 (3) ◽  
pp. 1007
Author(s):  
Renata Nayhara de Lima ◽  
Andrezza Kyarelle Bezerra de Moura ◽  
Ana Paula Pinheiro de Assis ◽  
Hélia Maria de Souza Leite ◽  
Francisca Cedma de Sousa Oliveira ◽  
...  

The objective of this study was to evaluate the effects of suckling with cheese and colostrum, from whole milk, on the characteristics and yields of slaughter of dairy calves at 60 days. Twenty-four uncastrated male Hosltein calves were used. The experimental treatments included: integral milk (MI); 50% integral milk + 50% in natura whey cheese (MW); and 30% colostrum + 70% whey cheese (CW). Dry matter intake of concentrate (IDMC) and hay (IDMH), mean daily gain (MDG), and total weight gain (WGT) were evaluated. In addition, weights and yields of hot and cold carcasses, loss and breaking during cooling, and length and thoracic depth of the carcass, commercial cuts, and non-carcass components were measured. Resultantly, a significant effect (P < 0.05) was observed for IDMC, live weight at slaughter, warm carcass weight, cold carcass weight, and carcass length; here, MW and CS treatment differed from LS. Thus, these substitute diets to whole milk showed no interference with physiological and biometric patterns in the animals.


2015 ◽  
Vol 98 (1) ◽  
pp. 349-356 ◽  
Author(s):  
D.J. Kiezebrink ◽  
A.M. Edwards ◽  
T.C. Wright ◽  
J.P. Cant ◽  
V.R. Osborne

1972 ◽  
Vol 15 (3) ◽  
pp. 229-237
Author(s):  
C. E. Hinks ◽  
J. H. D. Prescott

SUMMARYTwo experiments concerning the effects, on the carcass and meat characteristics of 18-months-old Friesian steers, of variation in grazing intensity and the level of barley feeding with silage are reported.Groups of 12 steers were grazed at different intensities over 5-month grazing periods, such that live-weight differences of 38 kg and 16 kg were recorded at housing. No compensatory growth was recorded during the subsequent winter feeding period.Whilst the grazing treatments had little effect on carcass or meat quality, higher levels of barley feeding with silage over the winter period (710 v. 410 kg/steer) had significant effects on live-weight gain, and increased carcass weight by 21 kg at slaughter. The higher yield of carcass weight was reflected in significant differences in carcass composition, joint proportions and retail cut-out value. Sixty per cent of the carcass weight difference was removed as trim fat. Differences in carcass fatness were not associated with any differences in eating quality.


1999 ◽  
Vol 69 (1) ◽  
pp. 81-92 ◽  
Author(s):  
A. F. Carson ◽  
B. W. Moss ◽  
R. W. J. Steen ◽  
D. J. Kilpatrick

AbstractThis study investigated the effects of the percentage of Texel or Rouge de l’Ouest (Rouge) genes in lambs (0, 50, 75 or 100%; the remainder being Greyface (Border Leicester × Scottish Blackface)) on lamb carcass characteristics and meat quality. Ewe lambs were slaughtered at 34, 40, 46 and 52 kg and ram lambs were slaughtered at 40, 46, 52 and 58 kg live weight. Dressing proportion increased (P < 0·001) by 0·53 and 0·27 g carcass weight per kg live weight for each 1% increase in Texel or Rouge genes respectively. Carcass conformation classification increased (P < 0·001) by 0·016 and 0·007 units (on a five-point scale) for each 1% increase in Texel or Rouge genes respectively. Carcass fat depth measures were reduced by Texel and Rouge genes such that at a constant fat depth end point, carcass weight could be increased by 0·029 and 0·023 kg for each 1% increase in Texel or Rouge genes. Carcass lean content increased (P < 0·001) by 0·99 and 0·27 g/kg for each 1% increase in Texel or Rouge genes. Subcutaneous fat content was reduced (P < 0·001) by 0·36 and 0·29 g/kg for each 1% increase in Texel or Rouge genes. Intermuscular fat content was reduced (P < 0·01) by 0·38 g/kg per 1% increase in Texel genes, whereas Rouge genes had no effect. Similarly, bone content was reduced (P < 0·01) by Texel genes only (0·31 g/kg per 1% increase in Texel genes). Warner-Bratzler shear force values showed a quadratic effect with increasing Texel and Rouge genes, with an initial decrease from 0 to 50% followed by an increase to 100%. Cooking loss increased (P = 0·05) as the percentage of Rouge genes in lambs increased. Increasing the percentage of Texel or Rouge genes significantly increased L* values (P < 0·01 and P < 0·05 respectively), b* values (P = 0·05 and P< 0·05 respectively) and H° values (P < 0·001).


Author(s):  
Amir Husein ◽  
Rudy Sutrisna ◽  
Dian Septinova

This research aimed to know the influence of giving a commercial ration with addition of local feed fermented with ammonium sulphate and urea and to find out the best ration on live weight, carcass weight, and giblet weight of male hybrid ducks. This research was carried out in July 2018--August 2018 in the cage of ducks, Department of Animal Husbandry, Faculty of Agriculture, Lampung University. Research material used consisted of 40 male hybrid ducks. This study used a Completely Randomized Design (CRD). Data was analysed using analysis of variance at 5% level of significance. The results showed that there was no different effect of treatments on live weight (1,552--1,717 g / duck), carcass weight (805,6--1.016 g / duck), and giblet weight (106.8--118.45 g /duck) of male hybrid ducks. Keywords: Carcass weight, Giblet weight, Live weight, Male hybrid duck.


2016 ◽  
Vol 1 (1) ◽  
pp. 835-842
Author(s):  
Rifki Marzani ◽  
Herawati Latif ◽  
Samadi Samadi

Abtrak: Tujuan penelitian ini adalah untuk mengetahui tentang pengaruh substitusi amtabis yang difermentasi dengan Aspergillus niger (A.niger) terhadap berat dan persentase karkas broiler. Penelitian ini dilakukan di Laboratorium Lapangan Peternakan Fakultas Pertanian Universitas Syiah Kuala yang berlokasi di Desa Kopelma Darussalam Banda Aceh sejak tanggal 4 Desember 2015 sampai dengan tanggal 9 Januari 2016. Parameter yang diukur adalah berat hidup, berat karkas, persentase karkas, berat potongan karkas, persentase potongan karkas. Hasil penelitian menunjukkan bahwa substitusi Amtabis dengan ransum komersial berpengaruh sangat nyata (P0,01) terhadap berat hidup dan berat karkas, namun tidak berpengaruh nyata terhadap persentase karkas. Pada penambahan Amtabis dengan level 6% cenderung menaikkan berat hidup, berat dan persentase karkas tetapi tidak melebihi kontrol. Pengaruh substitusi Amtabis terhadap berat dan persentase bagian-bagian karkas menunjukkan pengaruh yang nyata pada berat sayap, berat paha atas dan berat paha bawah.Effect of Substitution Amtabis Fermented with Aspergillus niger on the Weight and the Percentage of Carcass Broiler Abstrack: The purpose of this study was to obtain information about the effect of substitution amtabis fermented with Aspergillus niger (A.niger) on broiler weight and the percentage of carcass. This research was conducted at the Field Laboratory of Animal Husbandry Department,  Agricultural Faculty, Syiah Kuala Universtiy Darusslam, Banda Aceh from December 4, 2015 to January 9, 2016. Parameters measured in this study were live weight, carcass weight, carcass percentage, pieces of carcass weight, carcass percentage cuts. The results showed that the substitution of Amtabis in commercial rations significant effect (P0,05) on live weight and carcass weight, but not influenced (P0,05) on carcass percentage. Substitution of Amtabis at the level of 6% on commercial feed tended to increase live weight, carcass weight and percentages but still not above control weight. Effect of substitution Amtabis on weight and cut-up pieces of broiler carcass showed significantly influenced on the weight of the wings, tights and drum sticks


1972 ◽  
Vol 14 (1) ◽  
pp. 69-75 ◽  
Author(s):  
J. A. Milne ◽  
E. F. Thomson ◽  
R. C. Campling

SUMMARYTwo experiments were conducted to compare the milk-producing value of dried forages in the form of cobs and pellets as replacements for a standard dairy concentrate. Four levels (0·33, 0·44, 0·55 and 0·66 kg/kg milk) of dried forage or standard dairy concentrate were offered in addition to a basal ration of 6 kg hay and 2 kg standard dairy concentrate. In both experiments the rate of eating by the cows of cobs was significantly slower (P<0·05) than that of pellets. No significant difference was found between the cobs and pellets in either experiment in their value for milk production. In Experiment 2 the standard dairy concentrate had a non-significantly higher (P>0·05) milk-producing value than the dried lucerne. Level of feeding had a significant positive effect on the milk yield (P< 0·001) of cows offered the dried grass and lucerne and on the milk solids- not-fat content (P<0·05) and live weight (P<0·01) of cows offered the dried grass, lucerne and standard dairy concentrate.


1969 ◽  
Vol 11 (1) ◽  
pp. 1-9 ◽  
Author(s):  
J. B. Owen ◽  
D. A. R. Davies ◽  
W. J. Ridgman

SUMMARY1. An experiment to test the effects on growth rate of lambs to 15 kg live weight of 5, 7 or 9 kg of milk replacer powder given according to four systems of daily restriction is described and the results are discussed.2. Although the average age at weaning varied from 18 to 50 days according to treatment, the quantity of milk replacer did not affect the lambs' overall growth rate. Lambs deprived of milk consumed extra concentrates at a rate of 1·75 ± 0·219 kg per kg of milk powder.3. Although severe restriction of the daily allowance markedly reduced the growth of lambs during the milk-feeding period, they subsequently grew at a faster rate and there was no resultant major depression of overall growth rate. The lambs first consumed a measurable quantity of solid food when they were on average 21 days old and this varied little according to treatment.4. It is concluded that under the conditions of this experiment it was not economic to give more than 5 kg of milk powder and that it was not advantageous to adopt distribution systems that delayed weaning much beyond 20 days.5. The applicability of these findings to practice is discussed in relation to the possibility of treatment effects from the rearing period being carried over to the period beyond 15 kg live weight, and also to the possible effects of single penning versus grouping on lamb behaviour.


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