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Showing 1 to 15 of 15 for “"Productive performance"”.
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Effect of feeding calcium propionate on carcass composition, and productive performance of male broilers
Male broilers were fed ad libitum a control diet and diets with 1.5% and 2.7% calcium propionate (CaP). Broiler diets were supplemented with CaP for the first 2,4,6, or 8-week intervals. After being fed CaP for the previous mentioned times the broilers received a control diet for the remainder of …
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Productive performance and fertility of broiler breeders maintained in commercial colony cages and on the conventional floors
… with four replicates was conducted to compare performance and fertility of naturally mated broiler breeders maintained on litter floor versus their counterparts maintained in two tiered colony cages. Cage maintained hens with restricted feeding weighed less (P 0.05) was found in egg weights …
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Effects of Aerial Ammonia on the Productive Performance of Young Pigs Experimentally Infected With Ascaris Suum or Bordetella Bronchiseptica
Made available in DSpace on 2014-12-13T19:42:49Z (GMT). No. of bitstreams: 1 7915341.pdf: 4523857 bytes, checksum: 1a2f29a1c81c3fd141ec2ba08da3d577 (MD5) Previous issue date: 1979
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A study of factors that influence growth performance and carcass and meat quality of iberian pigs reared under intensive management systems : Estudio de los factores que influyen sobre la productividad y la calidad de la canal y la carne de cerdo Ibérico en intensivo
… the influence of factors that influence growth performance and carcass and meat quality of Iberian (IB) pigs reared under intensive management systems. The influence of gender and castration of females, slaughter weight, feed restriction and terminal sire line were studied. To reach these goals, …
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Selection to improve spring fertility in a crossbred sheep population
Reproductive and productive performance of a composite sheep population, containing 50% Dorset, 25% Rambouillet and 25% Finn sheep breeding and under selection for ability to lamb in the fall, was evaluated. Traits considered were spring fertility, faIl litter size, live weights at birth, weaning, …
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Metabolic, reproductive, and performance evaluation in primiparous Nellore beef cows under grazing with different ages at breeding
… of this study was to evaluate the metabolic, reproductive and performance differences of primiparous Nellore cows, which became pregnant at 14 or 24 months. Thirty- eight primiparous Nellore cows with 200 ± 30 days of gestation were used, divided into two treatments: 14 - animals that became …
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Effect of amino acids and vitamin D3 on performance and biological responses in poultry
As productive performance is improved by breed selection, amino acid requirements may change to support this higher performance in poultry. The first objective of this dissertation was to update the valine and tryptophan requirement of small-framed laying hens and the lysine requirement of young …
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Avaliação do desempenho produtivo e reprodutivo de vacas leiteiras puras e mestiças da raça holandesa na Região do Alto do São Francisco-MG
Os dados utilizados neste trabalho foram obtidos de registros individuais de produção e reprodução de vacas da raça Holandesa preto e branca, ½ Holandês-Gir leiteira, ¾ Holandês-Gir leiteira, 7/8 Holandês-Gir leiteira, 15/16 Holandês-Gir leiteira e ½ Holandês- Jersey, oriundas de 23 fazendas …
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Utilização da torta de algodão na alimentação de caprinos mestiços boer em terminação
… and the end of the trial period for the productive performance. Chapter I - consumption, apparent digestibility, performance and feeding behavior of Boer crossbred goats fed cottonseed meai. In the evaluation of the nutrient intake ether extract showed a quadratic effect so that increased …
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An analysis of the performance of constructed wetlands in the treatment of domestic wastewater in the Western Cape, South Africa
… as variability and unpredictability in treatment performance. However the literature focuses largely on the advantages of the CWs with little attention being given to the limitations and impacts on the receiving environment. In South Africa, there are a few studies concerned with the application …
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Relationships among heifer traits, early-life productive traits, and lifetime productivity within Angus and Simmental female cattle
… using logistic regression methodology. For productive performance, three methodologies were compared: least squares, ridge regression and principal components regression. For heifers of both breeds, fertility was associated with birth date, weaning weight ratio and weaning-yearling relative …
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Evaluation of Feed Ingredients and Feed Additives on Poultry Performance and Health
… alternative methods to promote health and performance are necessary. This dissertation investigates corn particle size, alternative feed ingredients (aragonite), and feed additives (direct fed microbials) on their potential to improve turkey and laying hen health and performance. The second …
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Nutritional and genetic characterization of dairy cows managed on pasture-based systems, identifying key aspects to improve their performance
… order to design strategies to improve the cows' productive performance. The objectives of this dissertation were: 1) to review the existing literature on ration formulation for dairy cows in pasture-based systems, identifying limitations and potential improvement areas, 2) to evaluate the …
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Insect rearing: agri-food, welfare and feed sustainability - BEFWelSust
… diets, assessing its potential to improve animal performance, welfare and feed efficiency. The main findings of this thesis reveal the potential of valorising organic wastes and agro-industrial by-products as substrates for BSF, creating a system of locally-based insects rearing. By utilising …