EFFECTS OF CASTRATION, SIRE AND HORMONE TREATMENTS ON THE QUALITY OF RIB ROASTS FROM HOLSTEIN-FRIESIAN MALES

1975 ◽  
Vol 55 (3) ◽  
pp. 287-290 ◽  
Author(s):  
R. J. FORREST
Keyword(s):  
Hormone Treatment ◽  
Fat Deposition ◽  
Taste Panel ◽  
Quality Factors ◽  
Treatment Groups ◽  
Holstein Friesian ◽  
Panel Evaluation

A total of 72 Holstein-Friesian males from 11 sire groups were reared from birth on a concentrate ration. At 136 kg, one-half of the calves were castrated (Burdizzo) and at 340 kg, one-half of the bulls and steers were implanted with hormones (200 mg progesterone plus 20 mg estradiol-17-β-benzoate). Following slaughter at 475 kg, the 9th–11th rib sections were removed from the left sides of the carcass and frozen. Later, the four treatment and 11 sire groups were compared by taste panel evaluation of these rib roasts. No significant differences in quality factors (tenderness, juiciness, and flavor) due to pre-slaughter hormone treatment were evident in rib roasts from either bulls or steers. Hormone treatment significantly decreased (P < 0.05) fat deposition in steers and tended to increase fat levels in bulls. Rib roasts from bulls were significantly less desirable than roasts from steers in both treatment groups, for all quality factors. Significant sire effects for all taste panel evaluations were also noted.

scholarly journals DIFFERENCES IN CARCASS PROPORTIONS AND COMPOSITION IN CONTROL AND HORMONE-TREATED HOLSTEIN-FRIESIAN STEERS AND BULLS

1978 ◽  
Vol 58 (3) ◽  
pp. 333-338 ◽  
Author(s):  
R. J. FORREST
Keyword(s):  
Body Weight ◽  
Hormone Treatment ◽  
Fat Deposition ◽  
Carcass Composition ◽  
Holstein Friesian

The carcass proportions and fat deposition were studied in 72 Holstein–Friesian males reared on an all-concentrate ration and slaughtered at 475 kg. One half were castrated at 136 kg body weight and 18 bulls and 18 steers were implanted with 200 mg progesterone plus 20 mg estradiol-17-β-benzoate at 340 kg. There was no evidence of any difference between steers and bulls nor of any effect of the hormone treatment for the tail, butt, tip, round or front shank portions of the carcass. Steers had proportionately more flank, short loin, brisket and back and less chuck than bulls. With hormone treatment the percentage of rib and belly decreased and the hind, rump and rear shank increased in steers. With bulls, implanting decreased the rear shank and hind and increased the belly section. In carcass composition the bulls had a higher percentage of bone than steers. Implanting decreased the fat and increased the lean percentage in steers but did not significantly affect the bulls.

Effects of age and liveweight at first calving on first lactation milk, protein and fat yield of Friesian heifers

2001 ◽  
Vol 41 (1) ◽  
pp. 13 ◽  
Author(s):  
R. C. Dobos ◽  
K. S. Nandra ◽  
K. Riley ◽  
W. J. Fulkerson ◽  
I. J. Lean ◽  
...  
Keyword(s):  
Milk Protein ◽  
Combined Effects ◽  
Negative Effects ◽  
Treatment Groups ◽  
Grazed Pasture ◽  
Lactation Length ◽  
Holstein Friesian ◽  
The Individual ◽  
Lower Production

This paper reports on both the individual and combined effects of age (AFC) and liveweight (LWFC) at first calving for Australian Holstein–Friesian heifers on first lactation production. One hundred and thirty-five Australian Holstein–Friesian heifers were allocated to 1 of 3 AFC treatments. Within each AFC treatment, heifers were randomly assigned to 1 of 3 LWFC treatments. Heifers in all groups grazed pasture and were supplemented when the quantity and quality of pasture was inadequate to meet growth requirements. Mean AFC and LWFC achieved were 25.1, 29.9 and 33.9 months and 498, 549 and 595 kg, respectively. Mean liveweight gains from 16 weeks of age to calving ranged from 0.45 to 0.71 kg/day, depending on treatment. The heifers calving at 33.9 months of age produced 6.6 and 12.3% more milk, 6.3 and 11.9% more protein and 5.4 and 12.2% more fat than those calving at 29.9 and 25.1 months of age at the end of their first 300 day lactation, respectively. The lower production of the younger cows was associated with decreased daily output rather than by shorter lactation length. Heifers averaging 595 kg at first calving produced 5.5% more milk, 8.4% more protein and 11.4% more fat than those averaging 498 kg in first lactation, respectively. The heifers averaging 621 kg LWFC and 34 months AFC had the highest production of the 9 treatment groups. Production was increased by 5.35 L milk, 0.19 kg protein and 0.23 kg fat for an additional 1 kg LWFC, respectively. For each month delay in AFC, production was increased by 66.7 L milk, 1.87 kg protein and 2.36 kg fat, respectively. The combined effects of AFC and LWFC showed that to offset the negative effects of a 1 month reduction in AFC on milk, protein and fat yields in first lactation, LWFC would have to be increased by 8.1, 4.0 and 4.5 kg, respectively. Under the conditions of this experiment, maximum milk, protein and fat were estimated to be achieved at 559, 563 and 568 kg liveweight at first calving, respectively.

TASTE PANEL EVALUATION OF SEX EFFECTS ON THE QUALITY OF COOKED PORK

1968 ◽  
Vol 48 (2) ◽  
pp. 171-179 ◽  
Author(s):  
A. H. Martin ◽  
H. T. Fredeen ◽  
J. G. Stothart
Keyword(s):  
Sex Differences ◽  
Live Weight ◽  
Taste Panel ◽  
Sex Effects ◽  
Pig Meat ◽  
Entire Male ◽  
Panel Evaluation

Hams were sampled from 144 pigs, 36 each of barrows, gilts, boars, and ridglings, which ranged from 87 to 93 kg live weight at the time of slaughter. Ham steaks, prepared and cooked by a standardized procedure, were evaluated for cooking aroma, tenderness, juiciness, texture, flavor, and overall preference by a taste panel of six judges.For tenderness and texture, the samples from boars ranked highest followed by gilts, barrows, and ridglings. All sex differences were statistically significant [Formula: see text] for these two characteristics. Ranking for overall score and overall preference by judges was in this same order.Samples from barrows and ridglings scored higher for cooking aroma than the samples from boars and gilts [Formula: see text], although only three boars and one gilt were unanimously judged objectionable. However, aroma was lowly correlated with flavor (r = 0.28) and samples scoring low for aroma were often quite satisfactory for flavor.Samples from boars, gilts, and barrows received scores for flavor that were equivalent and exceeded the score for ridglings by 0.35 units [Formula: see text].It was observed that objectionable odors noted in the cooking of pig meat may, in the absence of knowledge of the sex involved, be incorrectly attributed to the entire male or to the ridgling pig.

CHANGES IN CARCASS PROPORTIONS AND FAT DEPOSITION IN CONTROL AND HORMONE-TREATED HOLSTEIN-FRIESIAN STEERS

1976 ◽  
Vol 56 (4) ◽  
pp. 721-725 ◽  
Author(s):  
R. J. FORREST
Keyword(s):  
Live Weight ◽  
Growth Period ◽  
Hormone Treatment ◽  
Fat Deposition ◽  
Carcass Weight ◽  
Lean Meat ◽  
Holstein Friesian ◽  
Estradiol 17Β

In a study of 72 Holstein-Friesian steers, one-half of which had been treated with hormones (200 mg of progesterone plus 20 mg of estradiol-17β-benzoate), variation in carcass weight was poorly correlated with lean meat deposition in various sections of the carcass, even though fat deposition during the growth period from 340 to 703 kg live weight significantly altered carcass proportions. Increasing carcass size from 172 to 393 kg did not significantly change the proportion of chuck but significantly (P < 0.05) decreased the tail, rump, tip, round, butt and shanks and increased the short loin, rib, brisket and flank. These changes can be attributed to different rates of fattening in various sections of the carcass while lean disposition is relatively constant. Hormone treatment improved carcass lean yield by depressing fat deposition.

Polyphosphate Treatment of Frozen Cod. 3. Taste Panel Evaluation, Chemical Assessment and Thaw-Drip in Once-Frozen Newfoundland Trap-Caught Cod

1964 ◽  
Vol 21 (6) ◽  
pp. 1397-1402 ◽  
Author(s):  
W. A. MacCallum ◽  
Dorothy A. Chalker ◽  
J. T. Lauder ◽  
P. H. Odense ◽  
D. R. Idler
Keyword(s):  
Untreated Control ◽  
Gadus Morhua ◽  
Sodium Tripolyphosphate ◽  
Frozen Storage ◽  
Taste Panel ◽  
Electrophoretic Patterns ◽  
Significant Difference ◽  
Texture Characteristics ◽  
Panel Evaluation

Sodium tripolyphosphate treatment before packaging and freezing of fillets of trap-caught cod (Gadus morhua L.) in-rigor was compared with treatment in plain water.The once-frozen treated fillets, evaluated by an analytical taste panel after frozen storage at −12°F (−24.5 °C) for periods up to 27 weeks, had significantly better texture characteristics than did the untreated control fillets.Thaw-drip was significantly smaller in treated samples but this effect was less pronounced after extended frozen storage.Lipid hydrolysis proceeded at the same rate in both treated and untreated fillets.There was no significant difference between the electrophoretic patterns of the proteins found in the treated and untreated samples. In both cases the muscle albumins constituted the major portion of the proteins in the drip.Results indicate that polyphosphate-treated fillets prepared from trap cod could have greater market acceptance than untreated fillets. The producer would benefit from improved quality of product and from increased yield.

Pengaruh Kualitas Pelayanan Terhadap Kepuasan Pelanggan di Kantor Perusahaan Umum Badan Urusan Logistik Kota Sampit Kabupaten Kotawaringin Timur

2016 ◽  
Vol 2 (2) ◽  
pp. 1-5
Author(s):  
Masrukin Masrukin ◽  
Hermanto Hermanto
Keyword(s):  
Quality Of Service ◽  
Customer Satisfaction ◽  
Service Quality ◽  
Error Rate ◽  
Research Method ◽  
Statistical Test ◽  
Quality Factors ◽  
Public Companies ◽  
Public Company

Customer satisfaction is influenced by service quality factors, this study aims to find out and analyze how much influence the quality of service on customer satisfaction is felt by customers who use the service of Poor Rice (Raskin) at the Office of Public Companies Logistics Agency (Perum BULOG) in Sampit City Regency East Kotawaringin. The research method used in this study is the method of observation, questionnaire/questionnaire and documentation using a Likert scale and the method of determining the sample used is the error rate of 5% as many as 213 samples. Testing the hypothesis used is a statistical test with the formula "Product moment person". The results showed that there was a very strong correlation between Service Quality and Customer Satisfaction of the Office of Public Company of the Logistics Affairs Agency (Perum BULOG) in the District of East Kotawaringin. As much as 0.9968514278 based on the calculation of Pearson Product Moment value.

scholarly journals The impact of regular sperm donation on bulls’ seminal plasma hormonal profile and phantom response

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alicja Kowalczyk ◽  
Elżbieta Gałęska ◽  
Ewa Czerniawska-Piątkowska ◽  
Anna Szul ◽  
Leszek Hebda
Keyword(s):  
Seminal Plasma ◽  
Sperm Donation ◽  
Hormonal Profile ◽  
Holstein Friesian ◽  
Different Seasons ◽  
Day Of The Week ◽  
The Impact ◽  
The Relationship ◽  
Positive Effect

AbstractThe aim of this study was to analyze the relationship between the concentration of hormones in the seminal plasma, the bull maintenance system in the insemination station, and the regularity of sperm donation and the response to the phantom (libido level). An additional goal was to determine whether there is a relationship between the hormonal profile in the blood, the sperm plasma, the oxidative and antioxidant profile in the blood of bulls and the biometry of their testicles and scrotum, as well as the quality of their sperm in both different seasons and intensities of reproductive use. For the study, 220 healthy and sexually mature Polish Holstein–Friesian bulls were used. They all had normal libido and were fed equally. The animals were grouped according to the scheme: young (16–20 month/n = 60) and old (26–30 month/n = 60) including: individually housed (n = 30) and group housed (n = 30) young, old individually housed (n = 30) and group housed (n = 30) (n total animals = 120); young animals donating semen once a week (every Thursday) (n = 25) and sporadically (once every two months on a random day of the week) (n = 25), old animals donating semen once a week (every Thursday) (n = 25 ) and sporadic donors (once every two months on a random day of the week) (n = 25) (n total animals = 100). When analyzing the results of this study, it should be stated that regular use has a positive effect on the secretion of sex hormones in bulls. Higher levels of testosterone and lower levels of estradiol and prostaglandins resulted in higher sexual performance, expressed by a stronger response to the phantom. The differences in favor of regular use were independent of the bull's age. The results of our research illustrate that the quality of semen and its freezing potential may depend on the season and frequency of its collection, as well as on the age of the males.

Growth and furring of mink (Mustela vison) given diets containing the β-adrenergic agonist, cimaterol

1991 ◽  
Vol 52 (2) ◽  
pp. 377-381 ◽  
Author(s):  
O. Slayden ◽  
J. E. Oldfield ◽  
F. Stormshak
Keyword(s):  
Group Treatment ◽  
Fibre Diameter ◽  
Adrenergic Agonist ◽  
Guard Hair ◽  
Treatment Groups ◽  
Body Weights ◽  
Diet Control ◽  
Highly Correlated ◽  
Fur Quality

ABSTRACTAn experiment was conducted to evaluate the effect of dietary cimaterol, a β-adrenergic agonist, on growth, carcass characteristics and pelt quality of kit mink. The 40 standard dark and 40 sapphire mink kits were assigned to a control or to one of three treatment groups (five males and five females of each colour phase per group). Treatment consisted of the inclusion of 0·5, 2 and 5 mg cimaterol per kg (dry) of a standard ranch mink diet (control). All animals were weighed at the initiation of the experiment (24 July) and at 28-day intervals until 16 October. At slaughter (12 December) body weights were recorded and pelts measured for length and evaluated for fur colour and quality by experienced fur graders. Samples of fur from similar sites on each animal were removed for measurement of guard hair and underfur diameter. Frozen carcasses were analysed for protein and fat content. Mink final weight decreased with increasing concentrations of dietary cimaterol (P < 0·05). Pelt length, which was found to be highly correlated with body size, was also reduced by cimaterol treatment. Feeding 2 and 5 mg cimaterol per kg diet to male kits, and 5 mg/kg to female kits caused a significant reduction in the proportion of carcass fat and increased the proportion of carcass protein (P < 0·05). Fur fibre diameter for both guard hair and underfur was not significantly affected by dietary cimaterol. There was also no significant effect of cimaterol treatment on fur quality. Cimaterol treatment did not result in diversion of nutrients from body proteins to the synthesis of fur and pelt proteins. Results of this research indicate that oral administration of cimaterol to mink will be of little practical value in fur production.

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