Effect of a Chelated Calcium Proteinate Dietary Supplement on the Reproductive Performance of Large White Turkey Breeder Hens

Grimes, J. L.; Noll, Sally; Brannon, J. A.; Godwin, J. L.; Smith, J. T.; Rowland, R. D.

doi:10.1093/japr/13.4.639

Cited by 5 publications

(11 citation statements)

References 18 publications

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“…There is quite extensive research on the benefits of chelated mineral sources in animal nutrition, in particular for non-ruminants [14][15][16][17]. These associated mineral sources have been reported to improve mineral absorption, and when replacing traditional inorganic mineral sources are capable of maintaining or improving performance [14,15].…”

Section: Discussionmentioning

confidence: 99%

“…These associated mineral sources have been reported to improve mineral absorption, and when replacing traditional inorganic mineral sources are capable of maintaining or improving performance [14,15]. However, the vast majority of studies focus their work on "trace" minerals like Cu, Zn, Fe, Mn and Se.…”

Section: Discussionmentioning

confidence: 99%

“…However, the vast majority of studies focus their work on "trace" minerals like Cu, Zn, Fe, Mn and Se. Research focusing on the study of Ca sources chelated to organic molecules in animal feed is rare [15] and in particular those focusing on their effect on reproductive and productive aspects of pigs are nonexistent.…”

Section: Discussionmentioning

confidence: 99%

“…However, these chelation reactions do not always result in molecules with high nutritional bioavailability [25]. However, the association of Ca with organic molecules in the form of proteinate has shown this high bioavailability [15]. One of the points that should be noted in the methodology when studying chelated minerals is the recommended nutritional level.…”

Section: Discussionmentioning

confidence: 99%

“…Working with Ca proteinate supplementation for turkey hens, Grimes et al reported greater hatchability values in the incubated eggs [15]. The authors attributed these findings to greater Ca bioavailability when provided in the form of proteinate in diets.…”

Section: Discussionmentioning

confidence: 99%

See 4 more Smart Citations

Evaluation of Different Calcium Sources on the Performance of Highly Prolific Lactating Sows

Lne¹,

Ban²,

Maiorka³

et al. 2017

J Vet Sci Technol

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Improvements in sow productivity have raised questions regarding dietary mineral recommendations. Current calcium (Ca) levels and/or Ca sources might not support milk requirements of the larger litter in the modern sow. Therefore, four hundred and eighty mixed parity sows of a high prolificacy genetic line were used to evaluate the impact of the calcium source on the performance of highly prolific lactating sows. Sows were distributed in a completely randomized experimental design among six treatments containing different levels of inorganic Ca (INO) and organic calcium carbon-amino-phospho-chelate (CQT) inclusion. The sows were allocated to one of the six treatments represented by increased replacement ratios between sources of calcium: 100% INO; 100% CQT; 80% INO and 20% CQT; 60% INO and 40% CQT; 40% INO and 60% CQT; 20% INO and 80% CQT. Farrowing duration was not influenced (P>0.10) by the treatments, and averaged 185 minutes. Average daily voluntary feed intake did not differ (P>0.10) between treatments (5.54 kg d -1 on average). The lactation BW, backfat losses and chemical composition of body weight loss was not influenced (P>0.10) by the treatments. Litter size and average piglet weight at birth were not influenced (P>0.10) by the treatments (13.7 and 1.26 kg, on average). Litter weight gain, litter size and average piglet weight at weaning were also not influenced (P>0.10) by the treatments. The Treatments did not influence (P>0.10) estimated daily milk yield; which averaged 11.41 kg d -1 . The treatments tended to influence (P<0.10) urinary pH levels at day 7 of lactation, were 100% CQT sows had a lower pH value than other treatments (6.72 vs. 7.27). 100% CQT sows also showed a significantly lower pH level at d 14 and 21 when compared to the other treatments (6.44 vs. 7.09; P<0.05; and 6.48 vs. 7.14; P<0.01; respectively for d 14 and 21 of lactation). Free Ca and parathyroid hormone (PTH) serum levels were not affected (P>0.10) by treatments during lactation and averaged 1.38 mmol/L and 14.62 pg/ml, respectively. In conclusion, this experiment demonstrated that in diets for lactating sows an inorganic Ca source can be fully replaced by a more available Ca source (i.e., calcium carbon-amino-phospho-chelate), without negatively impacting the productive and reproductive performance of these animals or the performance of their litters.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of Different Calcium Sources on the Performance of Highly Prolific Lactating Sows

Lne¹,

Ban²,

Maiorka³

et al. 2017

J Vet Sci Technol

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Hatchery Waste and Hatchability of Turkey Eggs

Mróz

Orłowska²,

Stępińska³

2010

Polish Journal of Natural Science

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The objective of this study was to determine the type and quantity of hatchery waste and egg hatchability during the first laying season of heavy-type turkey hens. The hatchability of 4536 eggs as well as the weight, type and quantity of waste material produced during nine control incubation cycles were monitored in turkey hens aged from 33 to 57 weeks, at three-week intervals. The day of embryo death was indicated and the percentage of embryos that died on successive days and during three incubation stages was calculated. The optimum egg weight was recorded in hens aged up to 45 weeks, and in older hens the average egg weight was higher than 95 g. Infertile eggs accounted for 2.0 to 8.3% hatchery waste. Embryo mortality reached 4.6 to 17.2% before puncture, and 1.4 to 5.8% after puncture. Loss due to the delay in hatching ranged from 0.8 to 6.1% fertile eggs. The highest number of newly hatched birds classified as unsuitable for rearing was noted in hens aged 57 weeks (5.2%), while in the remaining weeks of the laying period the number of such poults was substantially lower. The first and second mortality peak accounted for 13.0-28.0% and 13.0-23.0% of the total loss during incubation, respectively. Another embryo mortality peak (13%) was observed in turkey hens aged 42 weeks. The highest hatchability rate, at 93.1%, was reported in week 42. Over the period of best hatchability, embryo mortality reached 43% : 15% : 42% at three consecutive incubation stages. It was found, based on the type and quantity of hatchery waste and hatch rates, that turkey hens aged between 36 and 48 weeks were characterized by the highest reproductive efficiency. The results of this study may be used as reference values while estimating the total loss during incubation due to hen age in heavy-type turkeys.

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