scholarly journals Optimizing growth rate of dairy heifers through nutrition to maximize reproduction and production

2019 ◽  
pp. 100002
Author(s):  
Luis Tedeschi
Keyword(s):  
Growth Rate ◽  
Dairy Heifers

scholarly journals Effect of Phosphorus Supplementation on Growth Rate, Blood Minerals, and Conception Rate of Dairy Heifers

1977 ◽  
Vol 60 (12) ◽  
pp. 1932-1940 ◽  
Author(s):  
C.H. Noller ◽  
A.G. Castro ◽  
W.E. Wheeler ◽  
D.L. Hill ◽  
N.J. Moeller
Keyword(s):  
Growth Rate ◽  
Conception Rate ◽  
Dairy Heifers

The effects of grinding, either with or without NaOH treatment, on the utilization of straw by yearling dairy cattle

1981 ◽  
Vol 96 (1) ◽  
pp. 159-165 ◽  
Author(s):  
T. Smith ◽  
W. H. Broster ◽  
Valerie J. Broster ◽  
J. W. Siviter
Keyword(s):  
Growth Rate ◽  
Dairy Cattle ◽  
Wheat Straw ◽  
Barley Straw ◽  
Fixed Amount ◽  
Dairy Heifers ◽  
Naoh Treatment ◽  
Voluntary Intake

SUMMARYProcessed straw, both ground and ground–NaOH treated, has been compared with long straw in diets of straw and concentrates fed to yearling dairy heifers. Protein allowances were varied by the addition of fishmeal.Improved growth rate was consistently observed with those animals receiving fishmeal. When a fixed amount of barley straw was offered neither digestibility nor growth was affected by the form of the straw. With wheat straw grinding–NaOH treatment resulted in increased growth when fed in diets containing some long roughage. Voluntary intake of straw was additively increased by grinding and by treatment with 5% (w/w) NaOH. Ground-NaOH treatment of straw increased in vitro digestibility.

Effect of rationing grass on the growth rate of dairy heifers and on output per acre, with a note on its significance in experimental design

1963 ◽  
Vol 60 (3) ◽  
pp. 371-380 ◽  
Author(s):  
W. H. Broster ◽  
Valerie J. Tuck ◽  
C. C. Balch
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Dry Matter ◽  
Live Weight ◽  
Maximum Output ◽  
Flowering Stage ◽  
Live Weight Gain ◽  
Dairy Heifers ◽  
Low Levels ◽  
Point Level

1. A series of three experiments were performed to examine grass as a food for dairy heifers.2. Indoor feeding resulted in lower intakes of herbage and slower growth but gave greater outputs per acre of animal days and live-weight gain than grazing.3. The maximum consumption and growth rate, obtained on young grass, were 2·84 lb. herbage dry matter per 100 lb. live weight per day and 2·2 lb. live-weight gain per day for grazing stock. The corresponding figures for indoor feeding were 2·49 lb. herbage dry matter per 100 lb. per day and 1·34 lb. live weight gain per day.4. Live-weight gain per day was linearly related to herbage dry matter intake from 1·48 to 2·48 lb./ 100 lb. live weight/day.5. Intake of herbage and growth rate only fell after the herbage came into full flower.6. Increased stocking rate had small effects on growth rate because the animals grazed the paddocks more heavily.7. 2·6–3·0 lb. grass dry matter offered per 100 lb. live weight per day was judged an adequate ration for yearling heifers. This gave growth rates of 1·60 lb./day on herbage up to the flowering stage and a consumption of 88% of the available herbage.8. As an experimental technique zero grazing was found inadequate to replace grazing since it fails to reproduce similar intakes and rates of production. It permitted the reduction of intake to sufficiently low levels that live-weight gain per animal and per acre were reduced.9. The greatest output per acre was found to occur between limits of intake per day of 1·8–2·4 lb. herbage dry matter per 100 lb. live weight. Above the point of maximum output per acre level of feeding had little effect on production per animal and rate of stocking controlled output per acre. Below this point level of feeding controlled production per animal. The case is advanced that these latter levels of feeding are necessary in grassland experiments.

scholarly journals Effects of feeding treatment on growth rate and performance of primiparous Holstein dairy heifers

2021 ◽  
Vol 1 ◽  
pp. 1-None
Author(s):  
Yannick Le Cozler ◽  
Julien Jurquet ◽  
Nicolas Bedere
Keyword(s):  
Growth Rate ◽  
Dairy Heifers ◽  
And Performance

EVALUATION OF AN ALFALFA SILAGE-CORN SILAGE FEEDING PROGRAM FOR DAIRY HEIFERS FROM 200 TO 300 KG BODY WEIGHT

1987 ◽  
Vol 67 (3) ◽  
pp. 873-876
Author(s):  
A. S. ATWAL ◽  
T. R. BATRA
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Chemical Composition ◽  
Key Words ◽  
Corn Silage ◽  
Dairy Heifers ◽  
Feeding Program ◽  
Alfalfa Silage

An alfalfa silage-corn silage diet (15% concentrate) was similar in chemical composition to a hay-haylage-alfalfa silage-corn silage diet (25% concentrate). When fed to dairy heifers (238–350 d of age), the two diets resulted in very similar rates of gain (969 vs. 950 g d−1), heart girth and withers height. Heifers of both of these groups experienced considerable breeding problems. In a silage diet, grain content and its cost may be further reduced to obtain the desired rate of gain of about 700 g d−1 for dairy heifers growing from 200 to 300 kg body weight. Key words: Silage diet, growth rate, dairy heifers

scholarly journals The effect of growth rate on reproductive outcomes in replacement dairy heifers in seasonally calving, pasture-based systems

2019 ◽  
Vol 102 (6) ◽  
pp. 5599-5611
Author(s):  
C.J. Hayes ◽  
C.G. McAloon ◽  
C.I. Carty ◽  
E.G. Ryan ◽  
J.F. Mee ◽  
...  
Keyword(s):  
Growth Rate ◽  
Reproductive Outcomes ◽  
Dairy Heifers

Pelvic Parameters, Growth Rate, Puberty, and their Interrelationships in Young Dairy Heifers

1995 ◽  
Vol 30 (3) ◽  
pp. 117-123 ◽  
Author(s):  
AG Ramin ◽  
RCW Daniel ◽  
DC Fenwick ◽  
RG Verrall
Keyword(s):  
Growth Rate ◽  
Dairy Heifers ◽  
Pelvic Parameters

Effect of growth rate and mating age of dairy heifers on subsequent production over four years

1985 ◽  
Vol 25 (2) ◽  
pp. 263 ◽  
Author(s):  
RA Bettenay
Keyword(s):  
Growth Rate ◽  
Mediterranean Environment ◽  
Target Weight ◽  
Dairy Heifers ◽  
Mature Weight ◽  
Stocking Rates

An experiment was conducted using Friesian heifers in a Mediterranean environment to examine the effect of growth rate to mating and mating age on subsequent production. Heifers were mated at 12, 15, 18 or 24 months of age and at target mating weights of either 250 or 300 kg liveweight. Differential feeding ceased at the end of mating but, after calving, cows were grazed at one of two stocking rates. There were 64 cows in the milking phase of the experiment. Liveweight and production were measured over four lactations. There were no differences in production associated with target weight. Productions over four lactations for heifers first mated at 12, 15, 18 or 24 months were 15 500, 17 683, 16 779 and 18 855 kg fat-corrected milk, respectively. It was concluded that when differential feeding was discontinued at first mating, and feed was then not restricted up to calving, lifetime production was comparable whether heifers were mated at 48 or 58% of mature weight. Calving at less than 24 months of age could not be recommended.

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