TaqI Polymorphism in MYF5 Gene and its Association with Body Weight in Friesian Bull Calves

2016 ◽  
Vol 11 (7) ◽  
pp. 429-433
Author(s):  
S.M. Nasr ◽  
A.I. Ateya ◽  
K.M. Sadek ◽  
H.A. Radwan
Keyword(s):  
Body Weight ◽  
Taqi Polymorphism ◽  
Bull Calves

Development of penis and sheath in young dairy bulls, and its relationship to age and body weight

1962 ◽  
Vol 58 (1) ◽  
pp. 65-69 ◽  
Author(s):  
B. R. Ashdown
Keyword(s):  
Body Weight ◽  
Linear Regression ◽  
Sexual Development ◽  
First Year ◽  
Bull Calves ◽  
Breed Differences ◽  
Dairy Bulls ◽  
First Year Of Life ◽  
Development Proceeds

1. Eighty-six bull calves (fifty-two Friesian, twenty-two Ayrshire, twelve Shorthorn) were examined at intervals, during the first year of life, by a method which allowed classification of the degree of adherence between penis and sheath into five classes.2. Mean age and weight at which separation between penis and sheath commenced and was completed are recorded for each breed. Significant breed differences were found.3. The rate of separation accelerates as development proceeds.4. The relationships between age, body weight, and commencement and completion of separation in the Friesian bulls are analysed by correlation methods. These analyses suggest that both age and body weight are important in sexual development.5. An equation is given for the linear regression of age at completion of separation on age and weight at commencement of separation and weight at 10 weeks for the Friesian bulls.

A COMPARISON OF WEANING DAIRY CALVES BY BODY WEIGHT VERSUS AGE FROM WHOLE MILK OR MILK-REPLACER

1964 ◽  
Vol 44 (3) ◽  
pp. 327-333 ◽  
Author(s):  
A. D. L. Gorrill
Keyword(s):  
Body Weight ◽  
Energy Content ◽  
Dairy Calves ◽  
Milk Replacer ◽  
Calf Growth ◽  
Digestible Energy ◽  
Bull Calves ◽  
Whole Milk ◽  
Body Weights ◽  
Milk Replacers

Ayrshire bull calves were weaned from whole milk or milk-replacer at 7 weeks of age, and at two different body weights, namely 55 and 46 kg. A maximum of 1.82 kg starter was fed daily to 15 weeks of age and 1.82 kg grower concentrate to 180 days of age.Calf performance did not differ significantly by weaning at 7 weeks or 55 kg. Weight gains to weaning and to 15 weeks were significantly lower for calves weaned at 46 kg. The average 180-day body weights for calves weaned at 7 weeks, 55, and 46 kg were 150, 146, and 140 kg, respectively.Whole milk or milk-replacer feeding produced identical calf growth to 180 days of age. Milk-replacer tended to increase preweaning and decrease post-weaning growth of calves weaned at 46 kg compared with whole milk. The augmented preweaning starter intake by calves fed replacer is discussed in relation to the digestible energy content of milk-replacers. It is suggested that energy supplied by plant carbohydrates should not be included in replacers for early-weaned calves, due to the low digestibility of starch by calves until 3 or 4 weeks of age.

scholarly journals Effect of high and low energy based concentrate diet supplementation on nutrient intake and body weight changes of buffalo bull calves at Subornochar Upozila of Noakhali district in Bangladesh

2021 ◽  
Vol 50 (1) ◽  
pp. 50-56
Author(s):  
MA Siddiki ◽  
MR Amin ◽  
AKMA Kabir ◽  
MO Faruque ◽  
ZH Khandaker
Keyword(s):  
Body Weight ◽  
Nutrient Intake ◽  
Crude Protein ◽  
High Energy ◽  
Low Energy ◽  
Weight Changes ◽  
Body Weight Changes ◽  
Final Body Weight ◽  
Concentrate Supplementation ◽  
Bull Calves

This study was designed to investigate the effects of supplementation of high and low energy based concentrate diets (13.77 Vs 12.14 MJ/kg DM metabolizable energy) on the nutrient intake and body weight changes of indigenous growing buffalo bull calves in Bangladesh. The crude protein contents of both the supplemented diets were similar (about 12.50% on DM basis). In this study, a total of fifteen indigenous growing buffalo bull calves (av. Live weight 85.10±0.874 kg) were selected from different villages. It was found that the total dry matter intake was the highest (28.22±0.015 g/kg W0.75/d) in group supplemented with high energy concentrate diet along with farmer’s practices (D1), thereafter, in group supplemented with low energy concentrate diet along with farmer’s practices (D2) (27.79±0.015 g/kg W0.75/d) and the lowest (26.39±0.016 g/kg W0.75/d) in control group (D0) in which the animals were fed only farmers practices diet. Similarly, the crude protein intake was the highest in D1 group (2.86 ±0.029 g/kg W0.75/d), followed by D2 group (2.83±0.010 g/kg W0.75/d) and the lowest in farmer’s practices diet, D0 (2.08b±0.021 g/kg W0.75/d).  However, the final body weight of buffalo bull calves was higher in both groups supplemented with concentrate diets (D1 and D2) compared with control (D0) and differed significantly (p<0.01) while there were no significant differences (p>0.05) found between D1 and D2 where high energy concentrate supplementation group buffalo bull claves, D1 tended to be higher than low energy concentrate supplementation group buffalo bull claves, D2. The highest final (254.6 kg) body weight was recorded in high energy concentrate supplemented diets and the lowest (144.0 kg) was found in control. Additionally, the average final body weight was increased by 153.40 kg (151.58%), 150.40 kg (152.22%) and 45.60 kg (46.34%) in D1, D2 and D0 group buffalo bull calves, respectively. On the other hand, the average final body weight of D1 and D2 was increased by 110.60 kg (76.80%) and 105.20 kg (73.05%), respectively, compared with D0. In addition, the highest (6.46) feed conversion efficiency (FCE) was recorded in D1 followed by D2 (6.64) and the lowest (12.17) was found in D0. The trends of cost benefit ratio was the same like other considering factors, the highest (1:3.60) found in D1 followed by D2 (1:3.51) and the lowest (1:1.97) in D0. Finally, considering all the parameters, it was clearly indicated that supplementation of concentrate diet along with farmers practice is essential for fast growing, higher body weight gain and more benefits by rearing buffalo bull calves at Subornochar Upozila of Noakhali district in Bangladesh. Bang. J. Anim. Sci. 2021. 50 (1):50-56

scholarly journals Reserves to increase beef production and their use

2021 ◽  
Vol 37 ◽  
pp. 00005
Author(s):  
Leonid Kibkalo
Keyword(s):  
Body Weight ◽  
Average Daily Gain ◽  
The Body ◽  
Sales Revenue ◽  
The Third ◽  
Bull Calves ◽  
Morphological Composition ◽  
Special Diets ◽  
The Difference ◽  
Daily Gain

The studies were carried out on three groups of superreplacement heifers of the Simmental breed, which were impregnated at the body weight of 360 kg. In the first group there were 32 unimpregnated heifers, in the second – 28 heifers, in the third – 30 heifers. The heifers of the first group after growing at the age of 18 months were taken for meat. 56 heifers gave the crop. The heifers were transferred for reproduction, and the bull-calves were put on cultivation and further fattening. To obtain well-fed animals, special diets were made so that the average daily gain was at least 650-700 g. After calving, the cows of the second group were taken for meat, and the cows of the third group were put on a 3-month fattening, and then taken for meat. The pre-slaughter weight of animals of the first group was 52 kg lower than that of animals of the second group and 104.7 kg lower than that of the third group. The difference was statistically significant at P>0.999. The interior fat mass was higher in the carcasses of cows of the second group by 1.1 and 3.2 kg compared to the animals of the third and first groups. The carcass yield was almost at the same level slightly ahead of the animals of the first group. Their slaughter yield was 60.1%, in other groups – 58.8-59.6%. The meatiness ratio was slightly higher in animals of the first group. The carcass weight of the first-calf heifers of the third group was 27.4 kg higher than that of the second group. Compared to the first group, this figure is higher by 52.6 kg. Specific carcass meat weight of the animals of the third group was 82.75%, which is higher than in the second and first groups by 0.41-0.85%, respectively. Heavy cowbanes weighing 32.6 and 40.4 kg were obtained from the animals. The skin of animals of the third group was 3.5-21.6 dm2 larger in area than of the animals of the second and first groups. Feeder bull-calves (n=27) had a removable mass of 532 kg. Heavy (282.3 kg) carcasses of good morphological composition were obtained from them. The sales revenue from first-calf heifers (second group) was higher than fattened heifers by 10.4%, and in comparison with fattened animals after calving (third group) it was lower by 9.4%. From the sale of one cow with a crop, 2.9 times more profit was received than from the sale of a heifer.

scholarly journals Effect of silage and soybean straw based Total Mixed Ration (TMR) on the growth performances of growing bull calves

2020 ◽  
pp. 82-88
Author(s):  
NR Sarker ◽  
D Yeasmin ◽  
F Tabassum ◽  
MA Habib
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Live Weight ◽  
Initial Body Weight ◽  
Total Mixed Ration ◽  
Live Weight Gain ◽  
Treatment Groups ◽  
Bull Calves ◽  
Growth Performances ◽  
Soybean Straw

This study was undertaken to know the effect of silage and soybean straw based Total Mixed Ration (TMR) on the growth performances of growing bull calves. 30 growing bull calves were divided into 5 treatment groups considering their initial body weight 111.30±6.67 to115.66±10.69 kg and age 24 to 26 months, respectively. Five types of TMR were prepared with different roughage and concentrate ratios (R: C) as T1=70:30, T2=60:40, T3=50:50, T4=40:60, T5=30:70. TMR intake, DM intake, CP intake of animals in T2 group was significantly (P<0.001) higher. Significantly higher (P<0.01) DM and CP digestibility were observed in T2. No significant differences observed for live weight gain. The ADG was slightly higher in T2 group (0.860 kg/day) but no significant differences were found among the treatments. Based on the results, it may be concluded that using a 60:40 (R: C) TMR can be formulated for fattening bulls for proper growth and maintenance. Bangladesh J. of Livestock Res. 21-25: 82-88, 2018

scholarly journals COMPARISON OF FISH PROTEIN SOURCES AND MILK BY-PRODUCTS IN MILK REPLACERS FOR CALVES

1975 ◽  
Vol 55 (2) ◽  
pp. 269-278 ◽  
Author(s):  
A. D. L. GORRILL ◽  
J. W. G. NICHOLSON ◽  
ELIZABETH LARMOND ◽  
H. E. POWER
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Skim Milk ◽  
Milk Replacer ◽  
Fish Protein ◽  
Protein Sources ◽  
Bull Calves ◽  
Acid Whey ◽  
Milk Replacers ◽  
By Products

Three fish protein sources and milk by-products were used in milk replacers. Thirty Holstein heifer calves were fed five different milk replacers as follows: all-milk nitrogen control, and four with 65% of the nitrogen supplied by steam-dried herring meal and the remaining nitrogen from milk as: (a) skim milk powder, (b) skim milk and acid whey powders; and (c) acid whey powder partially neutralized with NaOH or (d) Ca(OH)2. Body weight gains were greater for calves fed the control milk replacer; from birth to 26 wk of age, calves weaned from this milk replacer gained 822 g/day, compared with 662, 731, 741 and 699 g/day, respectively, on diets a to d noted above (P < 0.05). A digestion and nitrogen balance trial with four bull calves fed the four herring meal milk replacers in a 4 × 4 latin square showed relatively poor utilization of the herring meal, especially for calves at 2–4 wk of age. The apparent dry matter digestibility was 75% when the acid whey in the diet was neutralized with Ca(OH)2, compared with 81% when it was neutralized with NaOH. Three milk replacers containing 62% of the total nitrogen from herring meal, isopropanol-extracted fish protein concentrate (FPC), or predigested FPC were compared using six Holstein bull calves in two 3 × 3 latin squares. Apparent digestion of dry matter and energy by the calves was similar for the three diets. Nitrogen digestibility was 82% in the herring meal and 86% in the predigested FPC diet (P < 0.05). At the end of the digestion trial, the calves were continued on the same diet to 91 kg body weight. Body weight gains by all calves averaged 1 kg/day. Loin roasts from the calves fed the herring meal diet were tougher and had an objectionable odor compared with those from calves fed the two FPC diets or whole milk. It was concluded that FPC could be a useful ingredient in calf milk replacers, and that herring meal was not well utilized by calves at 2–4 wk of age.

REARING OF DAIRY CALVES ON PASTURE WITH OR WITHOUT WHOLE OATS

1967 ◽  
Vol 47 (3) ◽  
pp. 211-216
Author(s):  
A. D. L. Gorrill
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Growth Rates ◽  
Dairy Calves ◽  
Average Growth Rate ◽  
Average Growth ◽  
Bull Calves ◽  
Body Weights ◽  
Weight Gains ◽  
Average Body

Three groups of 10 Ayrshire bull calves born in May and June, 1963 were placed on pasture at 2 weeks of age, after weaning at 55 kg body weight, or at 15 weeks of age. Half the calves in each group also received whole oats while on pasture to a maximum of 1.4 kg/day. Prior to going on pasture, calves were fed a starter ration and timothy hay. The calves were removed from pasture at 21 weeks of age and fed hay and grain until 52 weeks of age. There were no differences between groups in rate of gain from 1 week of age to weaning, the average growth rate for all calves being 427 g/day. Calves put on pasture after weaning gained 223 g/day from weaning to 15 weeks of age, and calves put on pasture at 15 weeks of age gained only 177 g/day from 15 to 21 weeks of age. Weight gains during these same two periods for calves put on pasture at 2 weeks of age were 432 and 500 g/day, respectively. Feeding oats to calves on pasture did not increase growth rates to weaning or to 15 weeks of age. Average body weights at 52 weeks of age were 251, 228, and 242 kg, respectively for calves started on pasture at 2 weeks of age, after weaning, and at 15 weeks of age.

scholarly journals EFFECT OF FEEDING DIFFERENT INCLUSION RATES OF WATER HYACINTH [EICHHORNIA CRASSIPES (MART.) SOLMS] ON THE BODY WEIGHT GAIN OF GROWING DAIRY BULL CALVES

2019 ◽  
Vol 7 (5) ◽  
pp. 293-298
Author(s):  
Nieta C. Amit
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Water Hyacinth ◽  
Dry Matter ◽  
Body Weight Gain ◽  
The Body ◽  
Napier Grass ◽  
Bull Calves ◽  
Dairy Bull ◽  
Effect Of Feeding

Twenty-four (24) Holstein Friesian-Sahiwal crossbred growing dairy bull calves with average weight of 87.30 kg were used to evaluate the effect of feeding water hyacinth (WH) on the Body Weight Gain (BWG) of growing dairy bull calves at the Dairy Training and Research Institute (DTRI), Dairy Farm, College of Agriculture and Food Science, University of the Philippines (UPLB), College, Laguna from August 2017 to December 2017.  WH at 0, 10, 20 and 40% dry matter (DM) basis substitution of Napier grass in the total mixed ration (TMR) served as treatments in six (6) randomized complete blocks, each block consisting of calves at the same weight range. WH at 40% caused increased DM intake in calves but feeding WH to calves did not affect body weight (BW) gain of the calves.  Therefore, WH can be used as an alternative feed source at an inclusion rate of 10-20% dry matter basis substitution of Napier grass.

scholarly journals Exterior Features and Productive Qualities of Young Beef Cattle of Various Genotypes

2019 ◽  
Vol 9 (2) ◽  
pp. 745-750
Keyword(s):  
Body Weight ◽  
Beef Cattle ◽  
Average Daily Gain ◽  
Comparative Assessment ◽  
Growing Period ◽  
Biological Features ◽  
Western Kazakhstan ◽  
Bull Calves ◽  
Daily Gain ◽  
Desert Zone

The article describes the issues of comparative assessment of economic and biological features and productive qualities of beef cattle bred in Western Kazakhstan. The authors present norms and rations for feeding young animals of different genotypes. The results of studying the exterior features, body weight and average daily gain of Kazakh Whiteheaded breed and foreign Hereford and Aberdeen Angus breeds are presented. The authors conduct a comparative analysis of body weight and average daily gain of young animals of different breeds grown in the semi-desert zone of Western Kazakhstan. It has been found that during the growing period from 8 to 15 months, the average daily gain of body weight of the Hereford breed was 658.1 g for bull calves and 587.1 g for heifers, of the Aberdeen Angus breed – 603.8 g and 500.9 g respectively and of the Kazakh Whiteheaded breed – 758.8 g and 561.1 g respectively

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